National Library of Energy BETA

Sample records for ument bu tt

  1. TtP-3 Tt-4 Tt-2 Tt-3 Tt-1 Tt-5 Tt-6 TtP-5 TtP-1 TtP-2 Tt-7 TtP-9

    Office of Legacy Management (LM)

    TtP-3 Tt-4 Tt-2 Tt-3 Tt-1 Tt-5 Tt-6 TtP-5 TtP-1 TtP-2 Tt-7 TtP-9 TtP-6 TtP-7 TtP-8 TtP-4 OLF-CM20 OLF-CM17 OLF-CM15 OLF-CM15 OLF-CM14 OLF-CM13 OLF-CM12 OLF-CM11 OLF-CM10 OLF-CM9 OLF-CM8 OLF-CM7 OLF-CM6 OLF-CM5 OLF-CM4 OLF-CM1 NORTH March 2014 Figure 1 Plan View of OLF Site Project No. 181750 DITCH/CHANNEL/CREEK L E G E N D : SLUMP OR SUBSIDENCE LINE AND DIRECTION ROAD TEST PIT LOCATION TEST BORING AND INCLINOMETER LOCATION SETTLEMENT MONUMENT (EXISTING) APPROXIMATE LIMITS OF GEOTECHNICAL

  2. NREL: Biomass Research - Lintao Bu

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lintao Bu Photo of Lintao Bu Lintao Bu is a staff scientist at the National Renewable Energy Laboratory's National Bioenergy Center. Education Ph.D., Computational Chemistry, Boston University, 1999-2004 M.S., Physical Chemistry, Peking University, 1996-1999 B.S., Chemistry, Peking University, 1991-1996 Professional Experience Research Scientist, National Renewable Energy Laboratory, National Bioenergy Center, Golden, CO, 2008-present Postdoctoral Researcher, National Renewable Energy

  3. Evidence for tt?? Production and Measurement of (? tt?)?/(?tt?)

    SciTech Connect (OSTI)

    Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, J A; Apresyan, A; Arisawa, T

    2011-08-31

    Using data corresponding to 6.0 fb-1 of pp? collisions at ?s = 1.96 TeV collected by the CDF II detector, we present a cross section measurement of top-quark pair production with an additional radiated photon, tt??. The events are selected by looking for a lepton (ell), a photon (?), significant transverse momentum imbalance (ET), large total transverse energy, and three or more jets, with at least one identified as containing a b quark (b). The tt?? sample requires the photon to have 10 GeV or more of transverse energy, and to be in the central region. Using an event selection optimized for the tt?? candidate sample we measure the production cross section of tt? (?tt?), and the ratio of cross sections of the two samples. Control samples in the dilepton+photon and lepton+photon+ET, channels are constructed to aid in decay product identification and background measurements. We observe 30 tt?? candidate events compared to the standard model expectation of 26.9 3.4 events. We measure the tt?? cross section (?tt?) to be 0.18 0.08 pb, and the ratio of ?tt?? to ?tt? to be 0.024 0.009. Assuming no tt?? production, we observe a probability of 0.0015 of the background events alone producing 30 events or more, corresponding to 3.0 standard deviations.

  4. ALT AMONT BLU EBELL NATUR AL BU TT ES PLAT EAU CATHED RAL RED WASH

    Gasoline and Diesel Fuel Update (EIA)

    BOE Reserve Class No 2001 reserves 0.1 - 10 MBOE 10.1 - 100 MBOE 100.1 - 1,000 MBOE 1,000.1 - 10,000 MBOE 10,000.1 - 100,000 MBOE > 100,000 MBOE Basin Outline Total Total Total Number Liquid Gas BOE of Reserves Reserves Reserves Fields (Mbbl) (MMcf) (Mbbl) Uinta-Piceance 180 254,329 7,181,669 1,451,274 Basin Uinta-Piceance Basin Oil & Gas Fields By 2001 BOE

  5. ALT AMONT BLU EBELL NATUR AL BU TT ES PLAT EAU CATHED RAL RED WASH

    Gasoline and Diesel Fuel Update (EIA)

    Gas Reserve Class No 2001 gas reserves 0.1 - 10 MMCF 10.1 - 100 MMCF 100.1 - 1,000 MMCF 1,000.1 - 10,000 MMCF 10,000.1 - 100,000 MMCF > 100,000 MMCF Basin Outline Total Total Total Number Liquid Gas BOE of Reserves Reserves Reserves Fields (Mbbl) (MMcf) (Mbbl) Uinta-Piceance 180 254,329 7,181,669 1,451,274 Basin Uinta-Piceance Basin Oil & Gas Fields By 2001 Gas

  6. ALT AMONT BLU EBELL NATUR AL BU TT ES PLAT EAU CATHED RAL RED WASH

    Gasoline and Diesel Fuel Update (EIA)

    Liquids Reserve Class No 2001 liquids reserves 0.1 - 10 Mbbl 10.1 - 100 Mbbl 100.1 - 1,000 Mbbl 1,000.1 - 10,000 Mbbl 10,000.1 - 100,000 Mbbl Basin Outline Total Total Total Number Liquid Gas BOE of Reserves Reserves Reserves Fields (Mbbl) (MMcf) (Mbbl) Uinta-Piceance 180 254,329 7,181,669 1,451,274 Basin Uinta-Piceance Basin Oil & Gas Fields By 2001 Liquids

  7. Policy_Statement_on_TT.pdf | Department of Energy

    Office of Environmental Management (EM)

    PolicyStatementonTT.pdf PolicyStatementonTT.pdf PolicyStatementonTT.pdf More Documents & Publications PolicyStatementonTechnologyTransfer.pdf Chapter 17 - Special...

  8. EA-404 Chubu TT Energy Management Inc. | Department of Energy

    Energy Savers [EERE]

    EA-404 Chubu TT Energy Management Inc. EA-404 Chubu TT Energy Management Inc. Order authorizing Chubu TT to export electric energy to Canada. EA-404 Chubu TT (CN).pdf More...

  9. Evidence for tt̄γ Production and Measurement of (σ tt̄)γ/(σtt̄)

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2011-08-31

    Using data corresponding to 6.0 fb-1 of pp̄ collisions at √s = 1.96 TeV collected by the CDF II detector, we present a cross section measurement of top-quark pair production with an additional radiated photon, tt̄γ. The events are selected by looking for a lepton (ell), a photon (γ), significant transverse momentum imbalance (ET), large total transverse energy, and three or more jets, with at least one identified as containing a b quark (b). The tt̄γ sample requires the photon to have 10 GeV or more of transverse energy, and to be in the central region. Using an event selectionmore » optimized for the tt̄γ candidate sample we measure the production cross section of tt̄ (σtt̄), and the ratio of cross sections of the two samples. Control samples in the dilepton+photon and lepton+photon+ET, channels are constructed to aid in decay product identification and background measurements. We observe 30 tt̄γ candidate events compared to the standard model expectation of 26.9 ± 3.4 events. We measure the tt̄γ cross section (σtt̄) to be 0.18 ± 0.08 pb, and the ratio of σtt̄γ to σtt̄ to be 0.024 ± 0.009. Assuming no tt̄γ production, we observe a probability of 0.0015 of the background events alone producing 30 events or more, corresponding to 3.0 standard deviations.« less

  10. TT Coordinator Ltr dated May 13 2010 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    TT Coordinator Ltr dated May 13 2010 » TT Coordinator Ltr dated May 13 2010 TT Coordinator Ltr dated May 13 2010 TT Coordinator Ltr dated May 13 2010 PDF icon TT_Coordinator_Ltr_dated_May_13_2010.pdf More Documents & Publications Technology Partnership Ombudsman - Roles, Responsibilities, Authorities and Accountabilities Technology Partnership Ombudsman - Roles, Responsibilities, Authorities and Accountabilities ADR Revised Policy

  11. TT Coordinator Ltr dated May 13 2010 | Department of Energy

    Energy Savers [EERE]

    TT Coordinator Ltr dated May 13 2010 TT Coordinator Ltr dated May 13 2010 TT Coordinator Ltr dated May 13 2010 PDF icon TT_Coordinator_Ltr_dated_May_13_2010.pdf More Documents & Publications Technology Partnership Ombudsman - Roles, Responsibilities, Authorities and Accountabilities Technology Partnership Ombudsman - Roles, Responsibilities, Authorities and Accountabilities Microsoft Word - ADR Revised Policy82508Reformatted.doc

  12. Policy_Statement_on_TT.pdf | Department of Energy

    Energy Savers [EERE]

    Policy_Statement_on_TT.pdf Policy_Statement_on_TT.pdf PDF icon Policy_Statement_on_TT.pdf More Documents & Publications Policy_Statement_on_Technology_Transfer.pdf Chapter 17 - Special Contracting Methods GC GUIDANCE ON BARTER TRANSACTIONS INVOLVING DOE-OWNED URANIUM

  13. Haskel/BuTech/PPI | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Haskel/BuTech/PPI Haskel/BuTech/PPI This presentation was given at the DOE Hydrogen Compression, Storage, and Dispensing Workshop in March 2013. PDF icon csd_workshop_5_walti.pdf More Documents & Publications DOE-HDBK-1018/2-93 Improving Compressed Air System Performance: A Sourcebook for Industry BNL Compressed Natural Gas Release Investigation

  14. The double contact nature of TT Herculis

    SciTech Connect (OSTI)

    Terrell, Dirk; Nelson, Robert H. E-mail: bob.nelson@shaw.ca

    2014-03-01

    We present new radial velocities and photometry of the short-period Algol TT Herculis. Previous attempts to model the light curves of the system have met with limited success, primarily because of the lack of a reliable mass ratio. Our spectroscopic observations are the first to result in radial velocities for the secondary star, and thus provide a spectroscopic mass ratio. Simultaneous analysis of the radial velocities and new photometry shows that the system is a double contact binary, with a rapidly rotating primary that fills its limiting lobe.

  15. UI,!JTYT) CTaTT:$ A'

    Office of Legacy Management (LM)

    .w. q7 -3 UI,!JTYT) CTaTT:$ A' =O:iI c E' XI:' ;' r' CO1 1-1 S?IO" New Ynrl: Operations Office 70 Columbus iivenue xew Yor'k '?5, 3. Y. I;JFOi< ~,4?' 101? F(:i{ Ti!T; DRESS P)R j:g&isZ No. 17, fi?HIL 2, i-31r:j T:?l3i",TlAY r. I.:. Tel. No. Plaza r[-3600, Ext. 2rjj Aridi l!.L, lg.l3 The United States Atomic Energy Commission has oomploted arrangements with the Federal 'urorlrs Agency for tne use of ths Magnesium Keduction Plant (Pluncor 649) at Luckey, Ohio, for the production

  16. Application to Export Electric Energy OE Docket No. EA-404 Chubu TT Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Management Inc. | Department of Energy 4 Chubu TT Energy Management Inc. Application to Export Electric Energy OE Docket No. EA-404 Chubu TT Energy Management Inc. Application from Chubu TT Energy to export electric energy to Canada. PDF icon EA-404 Chubu TT Energy (CN).pdf More Documents & Publications EA-404 Chubu TT Energy Management Inc. Record of Categorical Exclusion (CX) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-404 Chubu TT Energy Management

  17. Distinguishing technicolor models via tt production at polarized photon

    Office of Scientific and Technical Information (OSTI)

    colliders (Journal Article) | SciTech Connect Distinguishing technicolor models via tt production at polarized photon colliders Citation Details In-Document Search Title: Distinguishing technicolor models via tt production at polarized photon colliders We study top quark pair productions at a polarized photon collider from an e{sup +}e{sup -} linear collider (LC) in various improved technicolor models, namely, the one-family walking technicolor model, the top-color-assisted technicolor

  18. Evidence for spin correlation in tt̄ production

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abazov, Victor Mukhamedovich

    2012-01-19

    We present a measurement of the ratio of events with correlated t and t̄ spins to the total number of tt̄ events. This ratio f is evaluated using a matrix-element-based approach in 729 tt̄ candidate events with a single lepton ℓ (electron or muon) and at least four jets. The analyzed pp̄ collisions data correspond to an integrated luminosity of 5.3 fb-1 and were collected with the D0 detector at the Fermilab Tevatron collider operating at a center-of-mass energy \\(\\sqrt{s}=1.96\\) TeV. Combining this result with a recent measurement of f in dileptonic final states, we find f in agreement withmore » the standard model. In addition, the combination provides evidence for the presence of spin correlation in tt̄ events with a significance of more than 3 standard deviations.« less

  19. Measurement of the ttW and ttZ production cross sections in pp collisions at ?s = 8 TeV with the ATLAS detector

    SciTech Connect (OSTI)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; Abulaiti, Y.; Acharya, B. S.; Adamczyk, L.; Adams, D. L.; Adelman, J.; Adomeit, S.; Adye, T.; Affolder, A. A.; Agatonovic-Jovin, T.; Agricola, J.; Aguilar-Saavedra, J. A.; Ahlen, S. P.; Ahmadov, F.; Aielli, G.; Akerstedt, H.; kesson, T. P. A.; Akimov, A. V.; Alberghi, G. L.; Albert, J.; Albrand, S.; Alconada Verzini, M. J.; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexander, G.; Alexopoulos, T.; Alhroob, M.; Alimonti, G.; Alio, L.; Alison, J.; Alkire, S. P.; Allbrooke, B. M. M.; Allport, P. P.; Aloisio, A.; Alonso, A.; Alonso, F.; Alpigiani, C.; Altheimer, A.; Alvarez Gonzalez, B.; lvarez Piqueras, D.; Alviggi, M. G.; Amadio, B. T.; Amako, K.; Amaral Coutinho, Y.; Amelung, C.; Amidei, D.; Amor Dos Santos, S. P.; Amorim, A.; Amoroso, S.; Amram, N.; Amundsen, G.; Anastopoulos, C.; Ancu, L. S.; Andari, N.; Andeen, T.; Anders, C. F.; Anders, G.; Anders, J. K.; Anderson, K. J.; Andreazza, A.; Andrei, V.; Angelidakis, S.; Angelozzi, I.; Anger, P.; Angerami, A.; Anghinolfi, F.; Anisenkov, A. V.; Anjos, N.; Annovi, A.; Antonelli, M.; Antonov, A.; Antos, J.; Anulli, F.; Aoki, M.; Aperio Bella, L.; Arabidze, G.; Arai, Y.; Araque, J. P.; Arce, A. T. H.; Arduh, F. A.; Arguin, J-F.; Argyropoulos, S.; Arik, M.; Armbruster, A. J.; Arnaez, O.; Arnold, H.; Arratia, M.; Arslan, O.; Artamonov, A.; Artoni, G.; Asai, S.; Asbah, N.; Ashkenazi, A.; sman, B.; Asquith, L.; Assamagan, K.; Astalos, R.; Atkinson, M.; Atlay, N. B.; Augsten, K.; Aurousseau, M.; Avolio, G.; Axen, B.; Ayoub, M. K.; Azuelos, G.; Baak, M. A.; Baas, A. E.; Baca, M. J.; Bacci, C.; Bachacou, H.; Bachas, K.; Backes, M.; Backhaus, M.; Bagiacchi, P.; Bagnaia, P.; Bai, Y.; Bain, T.; Baines, J. T.; Baker, O. K.; Baldin, E. M.; Balek, P.; Balestri, T.; Balli, F.; Balunas, W. K.; Banas, E.; Banerjee, Sw.; Bannoura, A. A. E.; Barak, L.; Barberio, E. L.; Barberis, D.; Barbero, M.; Barillari, T.; Barisonzi, M.; Barklow, T.; Barlow, N.; Barnes, S. L.; Barnett, B. M.; Barnett, R. M.; Barnovska, Z.; Baroncelli, A.; Barone, G.; Barr, A. J.; Barreiro, F.; Barreiro Guimares da Costa, J.; Bartoldus, R.; Barton, A. E.; Bartos, P.; Basalaev, A.; Bassalat, A.; Basye, A.; Bates, R. L.; Batista, S. J.; Batley, J. R.; Battaglia, M.; Bauce, M.; Bauer, F.; Bawa, H. S.; Beacham, J. B.; Beattie, M. D.; Beau, T.; Beauchemin, P. H.; Beccherle, R.; Bechtle, P.; Beck, H. P.; Becker, K.; Becker, M.; Beckingham, M.; Becot, C.; Beddall, A. J.; Beddall, A.; Bednyakov, V. A.; Bee, C. P.; Beemster, L. J.; Beermann, T. A.; Begel, M.; Behr, J. K.; Belanger-Champagne, C.; Bell, W. H.; Bella, G.; Bellagamba, L.; Bellerive, A.; Bellomo, M.; Belotskiy, K.; Beltramello, O.; Benary, O.; Benchekroun, D.; Bender, M.; Bendtz, K.; Benekos, N.; Benhammou, Y.; Benhar Noccioli, E.; Benitez Garcia, J. A.; Benjamin, D. P.; Bensinger, J. R.; Bentvelsen, S.; Beresford, L.; Beretta, M.; Berge, D.; Bergeaas Kuutmann, E.; Berger, N.; Berghaus, F.; Beringer, J.; Bernard, C.; Bernard, N. R.; Bernius, C.; Bernlochner, F. U.; Berry, T.; Berta, P.; Bertella, C.; Bertoli, G.; Bertolucci, F.; Bertsche, C.; Bertsche, D.; Besana, M. I.; Besjes, G. J.; Bessidskaia Bylund, O.; Bessner, M.; Besson, N.; Betancourt, C.; Bethke, S.; Bevan, A. J.; Bhimji, W.; Bianchi, R. M.; Bianchini, L.; Bianco, M.; Biebel, O.; Biedermann, D.; Bieniek, S. P.; Biglietti, M.; Bilbao De Mendizabal, J.; Bilokon, H.; Bindi, M.; Binet, S.; Bingul, A.; Bini, C.; Biondi, S.; Bjergaard, D. M.; Black, C. W.; Black, J. E.; Black, K. M.; Blackburn, D.; Blair, R. E.; Blanchard, J. -B.; Blanco, J. E.; Blazek, T.; Bloch, I.; Blocker, C.; Blum, W.; Blumenschein, U.; Blunier, S.; Bobbink, G. J.; Bobrovnikov, V. S.; Bocchetta, S. S.; Bocci, A.; Bock, C.; Boehler, M.; Bogaerts, J. A.; Bogavac, D.; Bogdanchikov, A. G.; Bohm, C.; Boisvert, V.; Bold, T.; Boldea, V.; Boldyrev, A. S.; Bomben, M.; Bona, M.; Boonekamp, M.; Borisov, A.; Borissov, G.; Borroni, S.; Bortfeldt, J.; Bortolotto, V.; Bos, K.; Boscherini, D.; Bosman, M.; Boudreau, J.; Bouffard, J.; Bouhova-Thacker, E. V.; Boumediene, D.; Bourdarios, C.; Bousson, N.; Boutle, S. K.; Boveia, A.; Boyd, J.; Boyko, I. R.; Bozic, I.; Bracinik, J.; Brandt, A.; Brandt, G.; Brandt, O.; Bratzler, U.; Brau, B.; Brau, J. E.; Braun, H. M.; Breaden Madden, W. D.; Brendlinger, K.; Brennan, A. J.; Brenner, L.; Brenner, R.; Bressler, S.; Bristow, K.; Bristow, T. M.; Britton, D.; Britzger, D.; Brochu, F. M.; Brock, I.; Brock, R.; Bronner, J.; Brooijmans, G.; Brooks, T.; Brooks, W. K.; Brosamer, J.; Brost, E.; Bruckman de Renstrom, P. A.; Bruncko, D.; Bruneliere, R.; Bruni, A.; Bruni, G.; Bruschi, M.; Bruscino, N.; Bryngemark, L.; Buanes, T.; Buat, Q.; Buchholz, P.

    2015-11-24

    The production cross sections of top-quark pairs in association with massive vector bosons have been measured using data from pp collisions at ?s = 8 TeV. The dataset corresponds to an integrated luminosity of 20.3 fb1 collected by the ATLAS detector in 2012 at the LHC. Final states with two, three or four leptons are considered. A fit to the data considering the ttW and ttZ processes simultaneously yields a significance of 5.0? (4.2?) over the background-only hypothesis for ttW (ttZ) production. The measured cross sections are ?ttW = 369+10091 fband ?ttZ =176+5852 fb. The background-only hypothesis with neither ttW nor ttZ production is excluded at 7.1?. As a result, all measurements are consistent with next-to-leading-order calculations for the ttW and ttZ processes.

  20. Comment on measuring the tt forward-backward asymmetry at ATLAS and CMS

    SciTech Connect (OSTI)

    Arguin, Jean-Francois; Ligeti, Zoltan; Freytsis, Marat

    2011-10-01

    We suggest a new possibility for ATLAS and CMS to explore the tt forward-backward asymmetry measured at the Tevatron, by attempting to reconstruct tt events, with one of the tops decaying semileptonically in the central region (|{eta}|<2.5) and the other decaying hadronically in the forward region (|{eta}|>2.5). For several models which give comparable Tevatron signals, we study the charge asymmetry at the LHC as a function of cuts on |{eta}| and on the tt invariant mass, m{sub tt}. We show that there is an interesting complementarity between cuts on |{eta}| and m{sub tt} to suppress the dominant and symmetric gg{yields}tt rate, and different combinations of cuts enhance the distinguishing power between models. This complementarity is likely to hold in other new physics scenarios as well, which affect the tt cross section, so it motivates extending tt reconstruction to higher |{eta}|.

  1. The TT, TB, EB and BB correlations in anisotropic inflation

    SciTech Connect (OSTI)

    Chen, Xingang [Department of Physics, The University of Texas at Dallas, Richardson, TX 75083 (United States); Emami, Razieh [School of Physics, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Firouzjahi, Hassan [School of Astronomy, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Wang, Yi, E-mail: Xingang.Chen@utdallas.edu, E-mail: emami@ipm.ir, E-mail: firouz@ipm.ir, E-mail: yw366@cam.ac.uk [Centre for Theoretical Cosmology, DAMTP, University of Cambridge, Cambridge CB3 0WA (United Kingdom)

    2014-08-01

    The ongoing and future experiments will measure the B-mode from different sky coverage and frequency bands, with the potential to reveal non-trivial features in polarization map. In this work we study the TT, TB, EB and BB correlations associated with the B-mode polarization of CMB map in models of charged anisotropic inflation. The model contains a chaotic-type large field complex inflaton which is charged under the U(1) gauge field. We calculate the statistical anisotropies generated in the power spectra of the curvature perturbation, the tensor perturbation and their cross-correlation. It is shown that the asymmetry in tensor power spectrum is a very sensitive probe of the gauge coupling. While the level of statistical anisotropy in temperature power spectrum can be small and satisfy the observational bounds, the interactions from the gauge coupling can induce large directional dependence in tensor modes. This will leave interesting anisotropic fingerprints in various correlations involving the B-mode polarization such as the TB cross-correlation which may be detected in upcoming Planck polarization data. In addition, the TT correlation receives an anisotropic contribution from the tensor sector which naturally decays after l?>100. We expect that the mechanism of using tensor sector to induce asymmetry at low l to be generic which can also be applied to address other low l CMB anomalies.

  2. Measurement of the top quark mass in the tt? lepton+jets and tt? dilepton channels using ?s = 7 TeV ATLAS data

    SciTech Connect (OSTI)

    Aad, G.

    2015-07-17

    The top quark mass was measured in the channels tt? lepton+jets and tt? dilepton (lepton = e,?) based on ATLAS data recorded in 2011. The data were taken at the LHC with a protonproton centre-of-mass energy of ?s = 7 TeV and correspond to an integrated luminosity of 4.6 fb1. The tt? lepton+jets analysis uses a three-dimensional template technique which determines the top quark mass together with a global jet energy scale factor (JSF), and a relative b-to-light-jet energy scale factor (bJSF), where the terms b-jets and light-jets refer to jets originating from b-quarks and u, d, c, s-quarks or gluons, respectively. The analysis of the tt? dilepton channel exploits a one-dimensional template method using the m?b observable, defined as the average invariant mass of the two lepton+b-jet pairs in each event. The top quark mass is measured to be 172.33 0.75 (stat + JSF + bJSF) 1.02(syst) GeV, and 173.79 0.54(stat) 1.30(syst) GeV in the tt? lepton+jets and tt? dilepton channels, respectively. Thus, the combination of the two results yields mtop = 172.99 0.48(stat) 0.78(syst) GeV, with a total uncertainty of 0.91 GeV.

  3. GLADY CASSIT Y VANDALIA MURPHY CR EEK BU CKHN-CENT URY CLAY

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    GLADY CASSIT Y VANDALIA MURPHY CR EEK BU CKHN-CENT URY CLAY GLENVILLE N MINNORA JARVISVILLE FAR MINGTON PH ILIPPI BELIN GT ON WAYN ESBUR G PR UNT Y GLENVILLE S CAVE RUN TAYLOR DRAIN ROSEDALE ST MPT-N RMNT-SHK WESTON-JAN E LEW SWN DL-WID EN VADIS STANL EY DEKALB UNION TALLM AN SVILL E ASPINALL-FIN ST ER ZOLLARSVILLE WILBU R RAMSEY HEATER S BR IDGEPORT-PRUNT YTOWN ALEXAND ER LILLY FORK SH ERMAN HIRAM ST FK-BLST N CK BU RNS CH APEL S BR WN -LUM BER PORT CON INGS PR ATT BOSWELL REVEL ELK C REEK

  4. Measurement of the tt¯W and tt¯Z production cross sections in pp collisions at √s = 8 TeV with the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; et al

    2015-11-24

    The production cross sections of top-quark pairs in association with massive vector bosons have been measured using data from pp collisions at √s = 8 TeV. The dataset corresponds to an integrated luminosity of 20.3 fb–1 collected by the ATLAS detector in 2012 at the LHC. Final states with two, three or four leptons are considered. A fit to the data considering the tt¯W and tt¯Z processes simultaneously yields a significance of 5.0σ (4.2σ) over the background-only hypothesis for tt¯W (tt¯Z) production. The measured cross sections are σtt¯W = 369+100–91 fband σtt¯Z =176+58–52 fb. The background-only hypothesis with neither tt¯Wmore » nor tt¯Z production is excluded at 7.1σ. As a result, all measurements are consistent with next-to-leading-order calculations for the tt¯W and tt¯Z processes.« less

  5. Record of Categorical Exclusion (CX) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-404 Chubu TT Energy Management Inc.

    Broader source: Energy.gov [DOE]

    Application from Chubu TT to export electric energy to Canada. Record of Categorical Exclusion (CX) Determination.

  6. BuD, a helixloophelix DNA-binding domain for genome modification

    SciTech Connect (OSTI)

    Stella, Stefano; Molina, Rafael; Lpez-Mndez, Blanca; Juillerat, Alexandre; Bertonati, Claudia; Daboussi, Fayza; Campos-Olivas, Ramon; Duchateau, Phillippe; Montoya, Guillermo

    2014-07-01

    Crystal structures of BurrH and the BurrHDNA complex are reported. DNA editing offers new possibilities in synthetic biology and biomedicine for modulation or modification of cellular functions to organisms. However, inaccuracy in this process may lead to genome damage. To address this important problem, a strategy allowing specific gene modification has been achieved through the addition, removal or exchange of DNA sequences using customized proteins and the endogenous DNA-repair machinery. Therefore, the engineering of specific proteinDNA interactions in protein scaffolds is key to providing toolkits for precise genome modification or regulation of gene expression. In a search for putative DNA-binding domains, BurrH, a protein that recognizes a 19 bp DNA target, was identified. Here, its apo and DNA-bound crystal structures are reported, revealing a central region containing 19 repeats of a helixloophelix modular domain (BurrH domain; BuD), which identifies the DNA target by a single residue-to-nucleotide code, thus facilitating its redesign for gene targeting. New DNA-binding specificities have been engineered in this template, showing that BuD-derived nucleases (BuDNs) induce high levels of gene targeting in a locus of the human haemoglobin ? (HBB) gene close to mutations responsible for sickle-cell anaemia. Hence, the unique combination of high efficiency and specificity of the BuD arrays can push forward diverse genome-modification approaches for cell or organism redesign, opening new avenues for gene editing.

  7. HFiTT - Higgs Factory in Tevatron Tunnel (Technical Report) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect Technical Report: HFiTT - Higgs Factory in Tevatron Tunnel Citation Details In-Document Search Title: HFiTT - Higgs Factory in Tevatron Tunnel Authors: Chou, Weiren ; Mourou, Gerard ; Solyak, Nikolay ; Tajima, Toshiki ; Velasco, Mayda Publication Date: 2013-05-22 OSTI Identifier: 1128013 Report Number(s): FERMILAB-TM-2558-APC arXiv eprint number arXiv:1305.5202 DOE Contract Number: AC02-07CH11359 Resource Type: Technical Report Resource Relation: Conference: Community Summer Study

  8. B.U. Students Talk Energy Research at Lost Dog Cafe > Archived News Stories

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    > The Energy Materials Center at Cornell Archived News Stories Latest News The perfect atom sandwich requires an extra layer › Cornell boasts 22 'highly cited' researchers › Postdoc brings open access issue to the table › In This Section EMC2 News Archived News Stories B.U. Students Talk Energy Research at Lost Dog Cafe April 10th, 2014 › There was a science café at the Lost Dog Cafe in Binghamton last night. A group of Binghamton University students and professors talked about

  9. Measurement of the fraction of tt production via gluon-gluon fusion in pp collisions at {radical}(s)=1.96 TeV

    SciTech Connect (OSTI)

    Aaltonen, T.; Maki, T.; Mehtala, P.; Orava, R.; Osterberg, K.; Saarikko, H.; Remortel, N. van; Adelman, J.; Brubaker, E.; Fedorko, W. T.; Grosso-Pilcher, C.; Kim, Y. K.; Krop, D.; Kwang, S.; Paramonov, A. A.; Schmidt, M. A.; Shiraishi, S.; Shochet, M.; Wolfe, C.; Yang, U. K.

    2009-02-01

    We present a measurement of the ratio of the tt production cross section via gluon-gluon fusion to the total tt production cross section in pp collisions at {radical}(s)=1.96 TeV at the Tevatron. Using a data sample with an integrated luminosity of 955 pb{sup -1} recorded by the CDF II detector at Fermilab, we select events based on the tt decay to lepton+jets. Using an artificial neural network technique we discriminate between tt events produced via qq annihilation and gg fusion, and find G{sub f}={sigma}(gg{yields}tt)/{sigma}(pp{yields}tt)<0.33 at the 68% confidence level. This result is combined with a previous measurement to obtain the most stringent measurement of this quantity by CDF to date, G{sub f}=0.07{sub -0.07}{sup +0.15}.

  10. Measurement of the top quark mass in the tt¯→ lepton+jets and tt¯→ dilepton channels using √s = 7   TeV ATLAS data

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.

    2015-07-17

    The top quark mass was measured in the channels tt¯→ lepton+jets and tt¯→ dilepton (lepton = e,μ) based on ATLAS data recorded in 2011. The data were taken at the LHC with a proton–proton centre-of-mass energy of √s = 7 TeV and correspond to an integrated luminosity of 4.6 fb–1. The tt¯→ lepton+jets analysis uses a three-dimensional template technique which determines the top quark mass together with a global jet energy scale factor (JSF), and a relative b-to-light-jet energy scale factor (bJSF), where the terms b-jets and light-jets refer to jets originating from b-quarks and u, d, c, s-quarks ormore » gluons, respectively. The analysis of the tt¯→ dilepton channel exploits a one-dimensional template method using the mℓb observable, defined as the average invariant mass of the two lepton+b-jet pairs in each event. The top quark mass is measured to be 172.33 ± 0.75 (stat + JSF + bJSF) ± 1.02(syst) GeV, and 173.79 ± 0.54(stat) ± 1.30(syst) GeV in the tt¯→ lepton+jets and tt¯→ dilepton channels, respectively. Thus, the combination of the two results yields mtop = 172.99 ± 0.48(stat) ± 0.78(syst) GeV, with a total uncertainty of 0.91 GeV.« less

  11. Measurement of the top quark mass in the tt¯→ lepton+jets and tt¯→ dilepton channels using √s = 7   TeV ATLAS data

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.

    2015-07-17

    The top quark mass was measured in the channels tt¯→ lepton+jets and tt¯→ dilepton (lepton = e,μ) based on ATLAS data recorded in 2011. The data were taken at the LHC with a proton–proton centre-of-mass energy of √s = 7 TeV and correspond to an integrated luminosity of 4.6 fb–1. The tt¯→ lepton+jets analysis uses a three-dimensional template technique which determines the top quark mass together with a global jet energy scale factor (JSF), and a relative b-to-light-jet energy scale factor (bJSF), where the terms b-jets and light-jets refer to jets originating from b-quarks and u, d, c, s-quarks ormore »gluons, respectively. The analysis of the tt¯→ dilepton channel exploits a one-dimensional template method using the mℓb observable, defined as the average invariant mass of the two lepton+b-jet pairs in each event. The top quark mass is measured to be 172.33 ± 0.75 (stat + JSF + bJSF) ± 1.02(syst) GeV, and 173.79 ± 0.54(stat) ± 1.30(syst) GeV in the tt¯→ lepton+jets and tt¯→ dilepton channels, respectively. Thus, the combination of the two results yields mtop = 172.99 ± 0.48(stat) ± 0.78(syst) GeV, with a total uncertainty of 0.91 GeV.« less

  12. Search for resonant tt production in proton-proton collisions at ?s = 8 TeV

    SciTech Connect (OSTI)

    Khachatryan, Vardan

    2015-06-10

    A search is performed for the production of heavy resonances decaying into top-antitop quark pairs in proton-proton collisions at ?s = 8 TeV. Data used for the analyses were collected with the CMS detector and correspond to an integrated luminosity of 19.7 fb1. The search is performed using events with three different final states, defined by the number of leptons (electrons and muons) from the tt ? WbWb decay. The analyses are optimized for reconstruction of top quarks with high Lorentz boosts, where jet substructure techniques are used to enhance the sensitivity. Results are presented for all channels and a combination is performed. Furthermore, no significant excess of events relative to the expected yield from standard model processes is observed.

  13. DOE Hydrogen and Fuel Cells Program Record #13007: Industry Deployed Fuel Cell Backup Power (BuP)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    7 Date: 09/05/2013 Title: Industry Deployed Fuel Cell Backup Power (BuP) Originators: Pete Devlin, Jim Alkire, Sara Dillich, Dimitrios Papageorgopoulos Approved by: Rick Farmer and Sunita Satyapal Date: 09/09/13 Item: Table 1: Number of fuel cells deployments (current and planned) for applications in backup power. The funding of 903 Department of Energy (DOE) fuel cell backup power systems has led to over 3,500 industry installations and on-order backup power units with no DOE funding.

  14. Au133(SPh-tBu)52 Nanomolecules: X-ray Crystallography, Optical, Electrochemical, and Theoretical Analysis

    SciTech Connect (OSTI)

    Dass, Amala; Theivendran, Shevanuja; Nimmala, Praneeth Reddy; Kumara, Chanaka; Jupally, Vijay Reddy; Fortunelli, Alessandro; Sementa, Luca; Barcaro, Giovanni; Zuo, Xiaobing; Noll, Bruce C.

    2015-04-15

    Crystal structure determination has revolutionized modern science in biology, chemistry, and physics. However, the difficulty in obtaining periodic crystal lattices which are needed for X-ray crystal analysis has hindered the determination of atomic structure in nanomaterials, known as the nanostructure problem. Here, by using rigid and bulky ligands, we have overcome this limitation and successfully solved the X-ray crystallographic structure of the largest reported thiolated gold nanomolecule, Au133S52. The total composition, Au133(SPh-tBu)52, was verified using high resolution electrospray ionization mass spectrometry (ESI-MS). The experimental and simulated optical spectra show an emergent surface plasmon resonance that is more pronounced than in the slightly larger Au144(SCH2CH2Ph)60. Theoretical analysis indicates that the presence of rigid and bulky ligands is the key to the successful crystal formation.

  15. QUARTER SH OR T-T ER M EN ER GY OU TL OO K QUAR TERL Y PROJ

    Gasoline and Diesel Fuel Update (EIA)

    1 2 QUARTER SH OR T-T ER M EN ER GY OU TL OO K QUAR TERL Y PROJ ECTIO NS ENERGY INFORMA TION ADMINIST RATION May 1991 This publication may be purchased from the Superintendent of Documents, U.S. Government Printing Office. Purchasing in formation for this or other Energy Information Administration (EIA) publications may be obtained from the Government Printing Office or ElA's National Energy Information Center. Questions on energy statistics should be directed to the Center by mail, telephone,

  16. Erratum to: Measurement of jet multiplicity distributions in tt production in pp collisions at ?s = 7 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chatrchyan, S.

    2015-05-19

    Erratum to: Eur. Phys. J. C (2014) 74:3014 DOI 10.1140/epjc/s10052-014-3014-0 Table 4 was incorrectly captioned in the originally published version. The correct caption is Normalised differential tt production cross section as a function of the number of additional jets with pT > 30 GeV in the lepton+jets channel. The statistical, systematic, and total uncertainties are also shown. The main experimental and model systematic uncertainties are displayed: JES and the combination of renormalization and factorisation scales, jet-parton matching threshold, and hadronisation (in the table Q2/Match./Had.).

  17. Pressure Build-Up During the Fire Test in Type B(U) Packages Containing Water - 13280

    SciTech Connect (OSTI)

    Feldkamp, Martin; Nehrig, Marko; Bletzer, Claus; Wille, Frank

    2013-07-01

    The safety assessment of packages for the transport of radioactive materials with content containing liquids requires special consideration. The main focus is on water as supplementary liquid content in Type B(U) packages. A typical content of a Type B(U) package is ion exchange resin, waste of a nuclear power plant, which is not dried, normally only drained. Besides the saturated ion exchange resin, a small amount of free water can be included in these contents. Compared to the safety assessment of packages with dry content, attention must be paid to some more specific issues. An overview of these issues is provided. The physical and chemical compatibility of the content itself and the content compatibility with the packages materials must be demonstrated for the assessment. Regarding the mechanical resistance the package has to withstand the forces resulting from the freezing liquid. The most interesting point, however, is the pressure build-up inside the package due to vaporization. This could for example be caused by radiolysis of the liquid and must be taken into account for the storage period. If the package is stressed by the total inner pressure, this pressure leads to mechanical loads to the package body, the lid and the lid bolts. Thus, the pressure is the driving force on the gasket system regarding the activity release and a possible loss of tightness. The total pressure in any calculation is the sum of partial pressures of different gases which can be caused by different effects. The pressure build-up inside the package caused by the regulatory thermal test (30 min at 800 deg. C), as part of the cumulative test scenario under accident conditions of transport is discussed primarily. To determine the pressure, the temperature distribution in the content must be calculated for the whole period from beginning of the thermal test until cooling-down. In this case, while calculating the temperature distribution, conduction and radiation as well as evaporation and condensation during the associated process of transport have to be considered. This paper discusses limiting amounts of water inside the cask which could lead to unacceptable pressure and takes into account saturated steam as well as overheated steam. However, the difficulties of assessing casks containing wet content will be discussed. From the authority assessment point of view, drying of the content could be an effective way to avoid the above described pressure build-up and the associated difficulties for the safety assessment. (authors)

  18. Measurement of the tt¯ production cross section in pp collisions at √s=7 TeV in dilepton final states containing a τ

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; et al

    2012-06-19

    The top quark pair production cross section is measured in dilepton events with one electron or muon, and one hadronically decaying τ lepton from the decay tt¯→(lνl)(τhντ)bb¯, (l=e,μ). The data sample corresponds to an integrated luminosity of 2.0 fb⁻¹ for the electron channel and 2.2 fb⁻¹ for the muon channel, collected by the CMS detector at the LHC. This is the first measurement of the tt¯ cross section explicitly including τ leptons in proton-proton collisions at √s=7 TeV. The measured value σtt¯=143±14(stat)±22(syst)±3(lumi) pb is consistent with the standard model predictions.

  19. Measurement of the top-quark mass in the tt dilepton channel using the full CDF Run II data set

    SciTech Connect (OSTI)

    Aaltonen, T.

    2015-08-06

    We present a measurement of the top-quark mass in events containing two leptons (electrons or muons) with a large transverse momentum, two or more energetic jets, and a transverse-momentum imbalance. We use the full proton-antiproton collision data set collected by the CDF experiment during the Fermilab Tevatron Run II at center-of-mass energy ?s = 1.96 TeV, corresponding to an integrated luminosity of 9.1 fb1. A special observable is exploited for an optimal reduction of the dominant systematic uncertainty, associated with the knowledge of the absolute energy of the hadronic jets. The distribution of this observable in the selected events is compared to simulated distributions of tt dilepton signal and background. We measure a value for the top-quark mass of 171.51.9 (stat)2.5 (syst) GeV/c2.

  20. A search for resonant production of tt? pairs in 4.8 fb-1 of integrated luminosity of pp? collisions at ?s=1.96 TeV

    SciTech Connect (OSTI)

    Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, J A; Apresyan, A; Arisawa, T

    2011-10-27

    We search for resonant production of tt? pairs in 4.8 fb-1 integrated luminosity of pp? collision data at ?s = 1.96 TeV in the lepton+jets decay channel, where one top quark decays leptonically and the other hadronically. A matrix element reconstruction technique is used; for each event a probability density function (pdf) of the tt? candidate invariant mass is sampled. These pdfs are used to construct a likelihood function, whereby the cross section for resonant tt? production is estimated, given a hypothetical resonance mass and width. The data indicate no evidence of resonant production of tt? pairs. A benchmark model of leptophobic Z' ? tt? is excluded with mZ' < 900 GeV at 95% confidence level.

  1. A search for resonant production of tt̄ pairs in 4.8 fb-1 of integrated luminosity of pp̄ collisions at √s=1.96 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2011-10-27

    We search for resonant production of tt̄ pairs in 4.8 fb-1 integrated luminosity of pp̄ collision data at √s = 1.96 TeV in the lepton+jets decay channel, where one top quark decays leptonically and the other hadronically. A matrix element reconstruction technique is used; for each event a probability density function (pdf) of the tt̄ candidate invariant mass is sampled. These pdfs are used to construct a likelihood function, whereby the cross section for resonant tt̄ production is estimated, given a hypothetical resonance mass and width. The data indicate no evidence of resonant production of tt̄ pairs. A benchmark modelmore » of leptophobic Z' → tt̄ is excluded with mZ' < 900 GeV at 95% confidence level.« less

  2. Search for resonant production of tt? decaying to jets in pp? collisions at ?{s}=1.96 TeV

    SciTech Connect (OSTI)

    Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, J A; Apresyan, A; Arisawa, T

    2011-10-11

    This Letter reports a search for non-standard model topquark resonances, Z', decaying to ttMs; ?W+bW-b? , where both W decay to quarks. We examine the top-antitop quark invariant mass spectrum for the presence of narrow resonant states. The search uses a data sample of p{bar p} collisions at a center of mass energy of 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 2.8 fb-1. No evidence for top-antitop quark resonant production is found. We place upper limits on the production cross section times branching ratio for a specific topcolor assisted technicolor model with width of ?Z' = 0.012 MZ'. Within this model, we exclude Z' boson with masses below 805 GeV/c2 at the 95% confidence level.

  3. Measurement of the tt production cross-section using e? events with b-tagged jets in pp collisions at ?s = 7 and 8TeV with the ATLAS detector

    SciTech Connect (OSTI)

    Aad, G.

    2014-10-29

    The inclusive top quark pair (tt) production cross-section ?tt has been measured in protonproton collisions at ?s = 7 TeV ?s = 8 TeV with the ATLAS experiment at the LHC, using tt events with an opposite-charge e? pair in the final state. Thus, the measurement was performed with the 2011 7 TeV dataset corresponding to an integrated luminosity of 4.6 fb1 and the 2012 8 TeV dataset of 20.3 fb1. The numbers of events with exactly one and exactly two b-tagged jets were counted and used to simultaneously determine ?tt and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimizing the associated systematic uncertainties.

  4. Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at √s = 7 and 8 TeV with the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.

    2014-10-29

    The inclusive top quark pair (tt¯) production cross-section σtt¯ has been measured in proton–proton collisions at √s = 7 TeV √s = 8 TeV with the ATLAS experiment at the LHC, using tt¯ events with an opposite-charge eμ pair in the final state. Thus, the measurement was performed with the 2011 7 TeV dataset corresponding to an integrated luminosity of 4.6 fb–1 and the 2012 8 TeV dataset of 20.3 fb–1. The numbers of events with exactly one and exactly two b-tagged jets were counted and used to simultaneously determine σtt¯ and the efficiency to reconstruct and b-tag a jetmore » from a top quark decay, thereby minimizing the associated systematic uncertainties.« less

  5. Erratum to: Measurement of jet multiplicity distributions in tt-bar production in pp collisions at ?s = 7 TeV

    SciTech Connect (OSTI)

    Chatrchyan, S.

    2015-05-19

    Erratum to: Eur. Phys. J. C (2014) 74:3014 DOI 10.1140/epjc/s10052-014-3014-0 Table 4 was incorrectly captioned in the originally published version. The correct caption is Normalised differential tt production cross section as a function of the number of additional jets with pT > 30 GeV in the lepton+jets channel. The statistical, systematic, and total uncertainties are also shown. The main experimental and model systematic uncertainties are displayed: JES and the combination of renormalization and factorisation scales, jet-parton matching threshold, and hadronisation (in the table Q2/Match./Had.).

  6. Erratum to: Measurement of jet multiplicity distributions in tt-bar production in pp collisions at ?s = 7 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chatrchyan, S.

    2015-05-19

    Erratum to: Eur. Phys. J. C (2014) 74:3014 DOI 10.1140/epjc/s10052-014-3014-0 Table 4 was incorrectly captioned in the originally published version. The correct caption is Normalised differential tt production cross section as a function of the number of additional jets with pT > 30 GeV in the lepton+jets channel. The statistical, systematic, and total uncertainties are also shown. The main experimental and model systematic uncertainties are displayed: JES and the combination of renormalization and factorisation scales, jet-parton matching threshold, and hadronisation (in the table Q2/Match./Had.).

  7. Search for b?u transitions in B?[K????]DK decays

    SciTech Connect (OSTI)

    Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu.?G.; Lynch, G.; Koch, H.; Schroeder, T.; Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Khan, A.; Blinov, V. E.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu.?I.; Solodov, E. P.; Todyshev, K.?Yu.; Yushkov, A. N.; Bondioli, M.; Curry, S.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Stoker, D. P.; Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.; Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Richman, J. D.; West, C. A.; Eisner, A. M.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.; Cheng, C. H.; Doll, D. A.; Echenard, B.; Flood, K. T.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.; Andreassen, R.; Dubrovin, M. S.; Meadows, B. T.; Sokoloff, M. D.; Bloom, P. C.; Ford, W. T.; Gaz, A.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.; Ayad, R.; Toki, W. H.; Spaan, B.; Kobel, M. J.; Schubert, K. R.; Schwierz, R.; Bernard, D.; Verderi, M.; Clark, P. J.; Playfer, S.; Watson, J. E.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cibinetto, G.; Fioravanti, E.; Garzia, I.; Luppi, E.; Munerato, M.; Negrini, M.; Piemontese, L.; Baldini-Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Nicolaci, M.; Pacetti, S.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Bhuyan, B.; Prasad, V.; Lee, C. L.; Morii, M.; Edwards, A. J.; Adametz, A.; Marks, J.; Uwer, U.; Bernlochner, F. U.; Ebert, M.; Lacker, H. M.; Lueck, T.; Dauncey, P. D.; Tibbetts, M.; Behera, P. K.; Mallik, U.; Chen, C.; Cochran, J.; Crawley, H. B.; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Rubin, A. E.; Gritsan, A. V.; Guo, Z. J.; Arnaud, N.; Davier, M.; Derkach, D.; Grosdidier, G.; Le Diberder, F.; Lutz, A. M.; Malaescu, B.; Roudeau, P.; Schune, M. H.; Stocchi, A.; Wormser, G.; Lange, D. J.; Wright, D. M.; Bingham, I.; Chavez, C. A.; Coleman, J. P.; Fry, J. R.; Gabathuler, E.; Hutchcroft, D. E.; Payne, D. J.; Touramanis, C.; Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.; Cowan, G.; Paramesvaran, S.; Brown, D. N.; Davis, C. L.; Denig, A. G.; Fritsch, M.; Gradl, W.; Hafner, A.; Prencipe, E.; Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Jackson, G.; Lafferty, G. D.; Cenci, R.; Hamilton, B.; Jawahery, A.; Roberts, D. A.; Simi, G.; Dallapiccola, C.; Cowan, R.; Dujmic, D.; Sciolla, G.; Lindemann, D.; Patel, P. M.; Robertson, S. H.; Schram, M.; Biassoni, P.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Stracka, S.; Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.; Nguyen, X.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Raven, G.; Snoek, H. L.; Jessop, C. P.; Knoepfel, K. J.; LoSecco, J. M.; Wang, W. F.; Honscheid, K.; Kass, R.; Brau, J.; Frey, R.; Sinev, N. B.; Strom, D.; Torrence, E.; Feltresi, E.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Ben-Haim, E.; Bomben, M.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph.; Marchiori, G.; Ocariz, J.; Sitt, S.; Biasini, M.; Manoni, E.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Neri, N.; Oberhof, B.; Paoloni, E.; Perez, A.; Rizzo, G.; Walsh, J. J.; Lopes Pegna, D.; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.; Anulli, F.; Cavoto, G.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Li Gioi, L.; Mazzoni, M. A.; Piredda, G.; Buenger, C.; Hartmann, T.; Leddig, T.; Schrder, H.; Waldi, R.; Adye, T.; Olaiya, E. O.; Wilson, F. F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yche, Ch.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Franco Sevilla, M.; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Lewis, P.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.; MacFarlane, D. B.; Muller, D. R.; Neal, H.; Nelson, S.; Ofte, I.; Perl, M.; Pulliam, T.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Santoro, V.; Schindler, R. H.; Snyder, A.; Su, D.; Sullivan, M. K.; Vavra, J.; Wagner, A. P.; Weaver, M.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Yarritu, A. K.; Young, C. C.; Ziegler, V.; Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.; Randle-Conde, A.; Sekula, S. J.; Bellis, M.

    2011-07-06

    We present a study of the decays B?DK with D mesons reconstructed in the K????? or K????? final states, where D indicates a D? or a D0 meson. Using a sample of 47410? BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e?e? collider at SLAC, we measure the ratios R?((?(B?[K????]DK))/((?(B?[K????]DK)). We obtain R?=(5?12?10(stat)?2?4(syst))10? and R?=(12?12?10(stat)?3?5(syst))10?, from which we extract the upper limits at 90% probability: R?<2310? and R?<2910?. Using these measurements, we obtain an upper limit for the ratio rB of the magnitudes of the b?u and b?c amplitudes rB<0.13 at 90% probability.

  8. Search for resonant production of tt̄ decaying to jets in pp̄ collisions at √{s}=1.96 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2011-10-11

    This Letter reports a search for non-standard model topquark resonances, Z', decaying to ttMs; →W+bW-b̄ , where both W decay to quarks. We examine the top-antitop quark invariant mass spectrum for the presence of narrow resonant states. The search uses a data sample of p{bar p} collisions at a center of mass energy of 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 2.8 fb-1. No evidence for top-antitop quark resonant production is found. We place upper limits on the production cross section times branching ratio for a specific topcolor assisted technicolormore » model with width of λZ' = 0.012 MZ'. Within this model, we exclude Z' boson with masses below 805 GeV/c2 at the 95% confidence level.« less

  9. Observation of Spin Correlation in tt¯ Events from pp Collisions at √s=7 TeV Using the ATLAS Detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdelalim, A. A.; Abdesselam, A.; Abdinov, O.; Abi, B.; Abolins, M.; AbouZeid, O. S.; et al

    2012-05-24

    A measurement of spin correlation in tt¯ production is reported using data collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 2.1 fb⁻¹. Candidate events are selected in the dilepton topology with large missing transverse energy and at least two jets. The difference in azimuthal angle between the two charged leptons in the laboratory frame is used to extract the correlation between the top and antitop quark spins. In the helicity basis the measured degree of correlation corresponds to Ahelicity=0.40+0.09-0.08, in agreement with the next-to-leading-order standard model prediction. The hypothesis of zero spin correlation ismore » excluded at 5.1 standard deviations.« less

  10. Search for tt¯ resonances in the lepton plus jets final state with ATLAS using 4.7 fb⁻¹ of pp collisions at √s=7 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abajyan, T.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdelalim, A. A.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; et al

    2013-07-23

    A search for new particles that decay into top quark pairs (tt¯) is performed with the ATLAS experiment at the LHC using an integrated luminosity of 4.7 fb⁻¹ of proton–proton (pp ) collision data collected at a center-of-mass energy √s =7 TeV . In the tt¯ →WbWb decay, the lepton plus jets final state is used, where one W boson decays leptonically and the other hadronically. The tt¯ system is reconstructed using both small-radius and large-radius jets, the latter being supplemented by a jet substructure analysis. A search for local excesses in the number of data events compared to themore » Standard Model expectation in the tt¯ invariant mass spectrum is performed. No evidence for a tt¯ resonance is found and 95% credibility-level limits on the production rate are determined for massive states predicted in two benchmark models. The upper limits on the cross section times branching ratio of a narrow Z' resonance range from 5.1 pb for a boson mass of 0.5 TeV to 0.03 pb for a mass of 3 TeV. A narrow leptophobic topcolor Z' resonance with a mass below 1.74 TeV is excluded. Limits are also derived for a broad color-octet resonance with Γ/m=15.3% . A Kaluza–Klein excitation of the gluon in a Randall–Sundrum model is excluded for masses below 2.07 TeV.« less

  11. Determination of the top-quark pole mass using tt¯ + 1-jet events collected with the ATLAS experiment in 7TeV pp collisions

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; et al

    2015-10-19

    In this study, the normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the tt¯ + 1-jet system. This distribution can be used for a precise determination of the top-quark mass since gluon radiation depends on the mass of the quarks. The experimental analysis is based on proton-proton collision data collected by the ATLAS detector at the LHC with a centre-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.6 fb–1 . The selected events were identified using themore » lepton+jets top-quark-pair decay channel, where lepton refers to either an electron or a muon. The observed distribution is compared to a theoretical prediction at next-to-leading-order accuracy in quantum chromodynamics using the pole-mass scheme. With this method, the measured value of the top-quark pole mass, mpolet , is: mpolet = 173.7 ± 1.5(stat.) ± 1.4(syst.)+1.0–0.5(theory) GeV.« less

  12. Determination of the top-quark pole mass using tt + 1-jet events collected with the ATLAS experiment in 7TeV pp collisions

    SciTech Connect (OSTI)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; Abulaiti, Y.; Acharya, B. S.; Adamczyk, L.; Adams, D. L.; Adelman, J.; Adomeit, S.; Adye, T.; Agatonovic-Jovin, T.; Aguilar-Saavedra, J. A.; Agustoni, M.; Ahlen, S. P.; Ahmadov, F.; Aielli, G.; Akerstedt, H.; kesson, T. P. A.; Akimoto, G.; Akimov, A. V.; Alberghi, G. L.; Albert, J.; Albrand, S.; Alconada Verzini, M. J.; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexander, G.; Alexopoulos, T.; Alhroob, M.; Alimonti, G.; Alio, L.; Alison, J.; Allbrooke, B. M. M.; Allison, L. J.; Allport, P. P.; Aloisio, A.; Alonso, A.; Alonso, F.; Alpigiani, C.; Altheimer, A.; Alvarez Gonzalez, B.; Alviggi, M. G.; Amako, K.; Amaral Coutinho, Y.; Amelung, C.; Amidei, D.; Amor Dos Santos, S. P.; Amorim, A.; Amoroso, S.; Amram, N.; Amundsen, G.; Anastopoulos, C.; Ancu, L. S.; Andari, N.; Andeen, T.; Anders, C. F.; Anders, G.; Anderson, K. J.; Andreazza, A.; Andrei, V.; Anduaga, X. S.; Angelidakis, S.; Angelozzi, I.; Anger, P.; Angerami, A.; Anghinolfi, F.; Anisenkov, A. V.; Anjos, N.; Annovi, A.; Antonelli, M.; Antonov, A.; Antos, J.; Anulli, F.; Aoki, M.; Aperio Bella, L.; Arabidze, G.; Arai, Y.; Araque, J. P.; Arce, A. T. H.; Arduh, F. A.; Arguin, J-F.; Argyropoulos, S.; Arik, M.; Armbruster, A. J.; Arnaez, O.; Arnal, V.; Arnold, H.; Arratia, M.; Arslan, O.; Artamonov, A.; Artoni, G.; Asai, S.; Asbah, N.; Ashkenazi, A.; sman, B.; Asquith, L.; Assamagan, K.; Astalos, R.; Atkinson, M.; Atlay, N. B.; Auerbach, B.; Augsten, K.; Aurousseau, M.; Avolio, G.; Axen, B.; Ayoub, M. K.; Azuelos, G.; Baak, M. A.; Baas, A. E.; Bacci, C.; Bachacou, H.; Bachas, K.; Backes, M.; Backhaus, M.; Bagiacchi, P.; Bagnaia, P.; Bai, Y.; Bain, T.; Baines, J. T.; Baker, O. K.; Balek, P.; Balestri, T.; Balli, F.; Banas, E.; Banerjee, Sw.; Bannoura, A. A. E.; Bansil, H. S.; Barak, L.; Barberio, E. L.; Barberis, D.; Barbero, M.; Barillari, T.; Barisonzi, M.; Barklow, T.; Barlow, N.; Barnes, S. L.; Barnett, B. M.; Barnett, R. M.; Barnovska, Z.; Baroncelli, A.; Barone, G.; Barr, A. J.; Barreiro, F.; Barreiro Guimares da Costa, J.; Bartoldus, R.; Barton, A. E.; Bartos, P.; Bassalat, A.; Basye, A.; Bates, R. L.; Batista, S. J.; Batley, J. R.; Battaglia, M.; Bauce, M.; Bauer, F.; Bawa, H. S.; Beacham, J. B.; Beattie, M. D.; Beau, T.; Beauchemin, P. H.; Beccherle, R.; Bechtle, P.; Beck, H. P.; Becker, K.; Becker, S.; Beckingham, M.; Becot, C.; Beddall, A. J.; Beddall, A.; Bednyakov, V. A.; Bee, C. P.; Beemster, L. J.; Beermann, T. A.; Begel, M.; Behr, J. K.; Belanger-Champagne, C.; Bell, P. J.; Bell, W. H.; Bella, G.; Bellagamba, L.; Bellerive, A.; Bellomo, M.; Belotskiy, K.; Beltramello, O.; Benary, O.; Benchekroun, D.; Bender, M.; Bendtz, K.; Benekos, N.; Benhammou, Y.; Benhar Noccioli, E.; Benitez Garcia, J. A.; Benjamin, D. P.; Bensinger, J. R.; Bentvelsen, S.; Beresford, L.; Beretta, M.; Berge, D.; Bergeaas Kuutmann, E.; Berger, N.; Berghaus, F.; Beringer, J.; Bernard, C.; Bernard, N. R.; Bernius, C.; Bernlochner, F. U.; Berry, T.; Berta, P.; Bertella, C.; Bertoli, G.; Bertolucci, F.; Bertsche, C.; Bertsche, D.; Besana, M. I.; Besjes, G. J.; Bessidskaia Bylund, O.; Bessner, M.; Besson, N.; Betancourt, C.; Bethke, S.; Bevan, A. J.; Bhimji, W.; Bianchi, R. M.; Bianchini, L.; Bianco, M.; Biebel, O.; Bieniek, S. P.; Biglietti, M.; Bilbao De Mendizabal, J.; Bilokon, H.; Bindi, M.; Binet, S.; Bingul, A.; Bini, C.; Black, C. W.; Black, J. E.; Black, K. M.; Blackburn, D.; Blair, R. E.; Blanchard, J. -B.; Blanco, J. E.; Blazek, T.; Bloch, I.; Blocker, C.; Blum, W.; Blumenschein, U.; Bobbink, G. J.; Bobrovnikov, V. S.; Bocchetta, S. S.; Bocci, A.; Bock, C.; Boehler, M.; Bogaerts, J. A.; Bogdanchikov, A. G.; Bohm, C.; Boisvert, V.; Bold, T.; Boldea, V.; Boldyrev, A. S.; Bomben, M.; Bona, M.; Boonekamp, M.; Borisov, A.; Borissov, G.; Borroni, S.; Bortfeldt, J.; Bortolotto, V.; Bos, K.; Boscherini, D.; Bosman, M.; Boudreau, J.; Bouffard, J.; Bouhova-Thacker, E. V.; Boumediene, D.; Bourdarios, C.; Bousson, N.; Boutouil, S.; Boveia, A.; Boyd, J.; Boyko, I. R.; Bozic, I.; Bracinik, J.; Brandt, A.; Brandt, G.; Brandt, O.; Bratzler, U.; Brau, B.; Brau, J. E.; Braun, H. M.; Brazzale, S. F.; Brendlinger, K.; Brennan, A. J.; Brenner, L.; Brenner, R.; Bressler, S.; Bristow, K.; Bristow, T. M.; Britton, D.; Britzger, D.; Brochu, F. M.; Brock, I.; Brock, R.; Bronner, J.; Brooijmans, G.; Brooks, T.; Brooks, W. K.; Brosamer, J.; Brost, E.; Brown, J.; Bruckman de Renstrom, P. A.; Bruncko, D.; Bruneliere, R.; Bruni, A.; Bruni, G.; Bruschi, M.; Bryngemark, L.; Buanes, T.; Buat, Q.; Buchholz, P.; Buckley, A. G.; Buda, S. I.; Budagov, I. A.; Buehrer, F.; Bugge, L.; Bugge, M. K.; Bulekov, O.

    2015-10-19

    In this study, the normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the tt + 1-jet system. This distribution can be used for a precise determination of the top-quark mass since gluon radiation depends on the mass of the quarks. The experimental analysis is based on proton-proton collision data collected by the ATLAS detector at the LHC with a centre-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.6 fb1 . The selected events were identified using the lepton+jets top-quark-pair decay channel, where lepton refers to either an electron or a muon. The observed distribution is compared to a theoretical prediction at next-to-leading-order accuracy in quantum chromodynamics using the pole-mass scheme. With this method, the measured value of the top-quark pole mass, mpolet , is: mpolet = 173.7 1.5(stat.) 1.4(syst.)+1.00.5(theory) GeV.

  13. Measurement of the tt? production cross section in pp? collisions at ?s=1.96 TeV using events with large Missing ET and jets

    SciTech Connect (OSTI)

    Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, J A; Apresyan, A; Arisawa, T

    2011-08-09

    In this paper we report a measurement of the t{anti t} production cross section in pp? collisions at ?s = 1.96 TeV using data corresponding to an integrated luminosity of 2.2 fb-1 collected with the CDF II detector at the Tevatron accelerator. We select events with significant missing transverse energy and high jet multiplicity. This measurement vetoes the presence of explicitly identified electrons and muons, thus enhancing the tau contribution of ttMs; decays. Signal events are discriminated from the background using a neural network and heavy flavor jets are identified by a secondary-vertex tagging algorithm. We measure a tt? production cross section of 7.99 0.55(stat) 0.76(syst) 0.46(lumi) pb, assuming a top mass mtop = 172.5 GeV/c2, in agreement with previous measurements and standard model predictions.

  14. A Linear trans -Bis(imido) Neptunium(V) Actinyl Analog: NpV (NDipp)2 ( tBu2 bipy)2Cl (Dipp = 2,6- i Pr2C6H3)

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Brown, Jessie L.; Batista, Enrique R.; Boncella, James M.; Gaunt, Andrew J.; Reilly, Sean D.; Scott, Brian L.; Tomson, Neil C.

    2015-07-22

    We present the discovery that imido analogs of actinyl dioxo cations can be extended beyond uranium into the transuranic elements. Synthesis of the Np(V) complex, Np(NDipp)2(tBu2bipy)2Cl (1), is achieved through treatment of a Np(IV) precursor with a bipyridine co-ligand and lithium-amide reagent. Complex 1 has been structurally characterized, analyzed by 1H NMR and UV/vis/NIR spectroscopies, and the electronic structure evaluated by DFT calculations.

  15. Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; et al

    2016-01-07

    Fiducial cross-sections for tt¯ production with one or two additional b -jets are reported, using an integrated luminosity of 20.3 fb–1 of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for tt¯ events with at least one additional b-jet is measured to be 950 ± 70 (stat.) +240-190 (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) +15-10 (syst.) fb in the eμ channel. The cross-section times branching ratio for events with at least two additional b -jets is measured to bemore » 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton channel ( eμ , μμ , and ee ) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of tt¯ production with two additional b-jets to tt¯ production with any two additional jets. As a result, all measurements are in good agreement with recent theory predictions.« less

  16. Simultaneous measurements of the tt¯,W+W–, and Z/γ*→ττ production cross-sections in pp collisions ats=7TeV with the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; et al

    2015-03-06

    Simultaneous measurements of the tt¯, W⁺W⁻, and Z/γ∗ → ττ production cross-sections using an integrated luminosity of 4.6  fb⁻¹ of pp collisions at √s = 7  TeV collected by the ATLAS detector at the LHC are presented. Events are selected with two high transverse momentum leptons consisting of an oppositely charged electron and muon pair. The three processes are separated using the distributions of the missing transverse momentum of events with zero and greater than zero jet multiplicities. Measurements of the fiducial cross-section are presented along with results that quantify for the first time the underlying correlations in the predicted and measuredmore » cross-sections due to proton parton distribution functions. These results indicate that the correlated next-to-leading-order predictions for tt¯ and Z/γ∗ → ττ underestimate the data, while those at next-to-next-to-leading-order generally describe the data well. The full cross-sections are measured to be σ(tt¯) = 181.2 ± 2.8⁺⁹̣˙⁷₋₉̣₅ ± 3.3 ± 3.3  pb, σ(W⁺W⁻) = 53.3 ± 2.7⁺⁷˙³₋₈̣₀ ± 1.0 ± 0.5  pb, and σ(Z/γ∗ → ττ) = 1174 ± 24⁺⁷²₋₈₇ ± 21 ± 9  pb, where the cited uncertainties are due to statistics, systematic effects, luminosity and the LHC beam energy measurement, respectively. The W⁺W⁻ measurement includes the small contribution from Higgs boson decays, H → W⁺W⁻.« less

  17. Simultaneous measurements of the tt¯,W+W–, and Z/γ*→ττ production cross-sections in pp collisions ats=7TeV with the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; et al

    2015-03-06

    Simultaneous measurements of the tt¯, W⁺W⁻, and Z/γ∗ → ττ production cross-sections using an integrated luminosity of 4.6  fb⁻¹ of pp collisions at √s = 7  TeV collected by the ATLAS detector at the LHC are presented. Events are selected with two high transverse momentum leptons consisting of an oppositely charged electron and muon pair. The three processes are separated using the distributions of the missing transverse momentum of events with zero and greater than zero jet multiplicities. Measurements of the fiducial cross-section are presented along with results that quantify for the first time the underlying correlations in the predicted and measuredmore »cross-sections due to proton parton distribution functions. These results indicate that the correlated next-to-leading-order predictions for tt¯ and Z/γ∗ → ττ underestimate the data, while those at next-to-next-to-leading-order generally describe the data well. The full cross-sections are measured to be σ(tt¯) = 181.2 ± 2.8⁺⁹̣˙⁷₋₉̣₅ ± 3.3 ± 3.3  pb, σ(W⁺W⁻) = 53.3 ± 2.7⁺⁷˙³₋₈̣₀ ± 1.0 ± 0.5  pb, and σ(Z/γ∗ → ττ) = 1174 ± 24⁺⁷²₋₈₇ ± 21 ± 9  pb, where the cited uncertainties are due to statistics, systematic effects, luminosity and the LHC beam energy measurement, respectively. The W⁺W⁻ measurement includes the small contribution from Higgs boson decays, H → W⁺W⁻.« less

  18. Measurement of the tt̄ production cross section in pp̄ collisions at √s=1.96 TeV using events with large Missing ET and jets

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2011-08-09

    In this paper we report a measurement of the t{anti t} production cross section in pp̄ collisions at √s = 1.96 TeV using data corresponding to an integrated luminosity of 2.2 fb-1 collected with the CDF II detector at the Tevatron accelerator. We select events with significant missing transverse energy and high jet multiplicity. This measurement vetoes the presence of explicitly identified electrons and muons, thus enhancing the tau contribution of ttMs; decays. Signal events are discriminated from the background using a neural network and heavy flavor jets are identified by a secondary-vertex tagging algorithm. We measure a tt̄ productionmore » cross section of 7.99 ± 0.55(stat) ± 0.76(syst) ± 0.46(lumi) pb, assuming a top mass mtop = 172.5 GeV/c2, in agreement with previous measurements and standard model predictions.« less

  19. Energy and charge transfers between (Bu{sub 4}N){sub 2}(Ru)(dcbpyH){sub 2}(NCS){sub 2} (N719) and ZnO thin films

    SciTech Connect (OSTI)

    Ni Manman; Cheng Qiang; Zhang, W. F.

    2010-03-15

    ZnO thin films and (Bu{sub 4}N){sub 2}(Ru)(dcbpyH){sub 2}(NCS){sub 2} (called N719) sensitized ZnO thin films are grown on fluorine-doped tin oxide (FTO) conducting glass substrates using laser molecular beam epitaxy. Ultraviolet-visible absorption, photoluminescence (PL), surface photovoltage spectroscopy, and Raman scattering are employed to probe into the transition process of photogenerated charges and the interaction between ZnO and N719. The experimental results indicate that there is a significant electronic interaction between N719 and ZnO through chemiadsorption. The interaction greatly enhances the photogenerated charge separation and thus the photovoltaic response of the ZnO film but remarkedly weakens its radiative recombination, i.e., PL, implying strong energy and charge transfer occurring between N719 and ZnO. In addition, a new PL peak observed at about 720 nm in N719 sensitized ZnO/FTO is attributed to the electron-hole recombination of N719.

  20. Measurement of the tt¯ production cross-section as a function of jet multiplicity and jet transverse momentum in 7 TeV proton-proton collisions with the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.

    2015-01-08

    Tmore » he tt¯ production cross-section dependence on jet multiplicity and jet transverse momentum is reported for proton-proton collisions at a centre-of-mass energy of 7 eV in the single-lepton channel. his data was collected with the ALAS detector at the CERN Large Hadron Collider and comprise the full 2011 data sample corresponding to an integrated luminosity of 4.6 fb–1. Differential cross-sections are presented as a function of the jet multiplicity for up to eight jets using jet transverse momentum thresholds of 25, 40, 60, and 80 GeV, and as a function of jet transverse momentum up to the fifth jet. he results are shown after background subtraction and corrections for all known detector effects, within a kinematic range closely matched to the experimental acceptance. Several QCD-based Monte Carlo models are compared with the results. Sensitivity to the parton shower modelling is found at the higher jet multiplicities, at high transverse momentum of the leading jet and in the transverse momentum spectrum of the fifth leading jet. As a result, the MC@NLO+HERWIG MC is found to predict too few events at higher jet multiplicities.« less

  1. Search for New Phenomena in tt¯ Events with Large Missing Transverse Momentum in Proton-Proton Collisions at √s=7 TeV with the ATLAS Detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdelalim, A. A.; Abdesselam, A.; Abdinov, O.; Abi, B.; Abolins, M.; Abramowicz, H.; Abreu, H.; et al

    2012-01-26

    A search for new phenomena in tt¯ events with large missing transverse momentum in proton-proton collisions at a center-of-mass energy of 7 TeV is presented. The measurement is based on 1.04  fb⁻¹ of data collected with the ATLAS detector at the LHC. Contributions to this final state may arise from a number of standard model extensions. The results are interpreted in terms of a model where new top-quark partners are pair produced and each decay to an on-shell top (or antitop) quark and a long-lived undetected neutral particle. The data are found to be consistent with standard model expectations. A limitmore » at 95% confidence level is set excluding a cross section times branching ratio of 1.1 pb for a top-partner mass of 420 GeV and a neutral particle mass less than 10 GeV. In a model of exotic fourth generation quarks, top-partner masses are excluded up to 420 GeV and neutral particle masses up to 140 GeV.« less

  2. TT_Awards_cover_front_FINAL.indd

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... sulfone intermediate with sodium hydroxide, followed by ... in environments such as reactors and accelerators. ... the identi- fied APCI fast reactor campaign need for ...

  3. EA-404 Chubu TT (CN).pdf

    Office of Environmental Management (EM)

  4. EA-404 Chubu TT (CN)_0.pdf

    Office of Environmental Management (EM)

  5. HFiTT - Higgs Factory in Tevatron Tunnel (Technical Report) ...

    Office of Scientific and Technical Information (OSTI)

    science and technology. A paper copy of this document is also available for sale to the public from the National Technical Information Service, Springfield, VA at www.ntis.gov....

  6. Distinguishing technicolor models via tt production at polarized...

    Office of Scientific and Technical Information (OSTI)

    It is shown that, considering only the statistical errors, a polarized photon collider from a 500 GeV LC with an integrated luminosity of 500 fbsup -1 is sufficient for ...

  7. Microsoft Word - TT Coordinator Letter dated May 13 2010.docx

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    3, 2010 Address Dear (LabFacility Director): I am writing to ask you to support and promote the technology transfer partnership ombudsman that has been appointed in your ...

  8. Measurement of BR(Bu to phi K)/BR(Bu to J/psi K) at the collider detector at Fermilab

    SciTech Connect (OSTI)

    Napora, Robert A

    2004-10-01

    This thesis presents evidence for the decay mode B{sup {+-}} {yields} {phi}K{sup {+-}} in p{bar p} collisions at {radical}s = 1.96 TeV using (120 {+-} 7)pb{sup -1} of data collected by the Collider Detector at Fermilab (CDF). This signal is then used to measure the branching ratio relative to the decay mode B{sup {+-}} {yields} J/{psi}K{sup {+-}}. The measurement starts from reconstructing the two decay modes: B{sup {+-}} {yields} {phi}K{sup {+-}}, where {phi} {yields} K{sup +}K{sup -} and B{sup {+-}} {yields} J/{psi}K{sup {+-}}, where J/{psi} {yields} {mu}{sup +}{mu}{sup -}. The measurement yielded 23 {+-} 7 B{sup {+-}} {yields} {phi}K{sup {+-}} events, and 406 {+-} 26 B{sup {+-}} {yields} J/{psi}K{sup {+-}} events. The fraction of B{sup {+-}} {yields} J/{psi}K{sup {+-}} events where the J/{psi} subsequently decayed to two muons (as opposed to two electrons) was found to be f{sub {mu}{mu}} = 0.839 {+-} 0.066. The relative branching ratio of the two decays is then calculated based on the equation: BR(B{sup {+-}} {yields} {phi}K{sup {+-}})/BR(B{sup {+-}} {yields} J/{psi}K{sup {+-}}) = N{sub {phi}K}/N{sub {psi}K} {center_dot}f{sub {mu}{mu}} BR(J/{psi} {yields} {mu}{sup +}{mu}{sup -})/BR({phi} {yields} K{sup +}K{sup -}) {epsilon}{sub {mu}{mu}}K/{epsilon}KKK R({epsilon}{sub iso}). The measurement finds BR(B{sup {+-}} {yields} {phi}K{sup {+-}})/BR(B{sup {+-}} {yields} J/{psi}K{sup {+-}}) = 0.0068 {+-} 0.0021(stat.) {+-} 0.0007(syst.). The B{sup {+-}} {yields} {phi}K{sup {+-}} branching ratio is then found to be BR(B{sup {+-}} {yields} {phi}K{sup {+-}}) = [6.9 {+-} 2.1(stat.) {+-} 0.8(syst.)] x 10{sup -6}. This value is consistent with similar measurements reported by the e{sup +}e{sup -} collider experiments BaBar[1], Belle[2], and CLEO[3].

  9. BIG SANDY IDA ONEID A WILL IAM SBU RG BU RNIN G SPRIN GS WIN

    U.S. Energy Information Administration (EIA) Indexed Site

    100.1 - 1,000 MMCF 1,000.1 - 10,000 MMCF 10,000.1 - 100,000 MMCF > 100,000 MMCF Appalachian Basin Boundary Appalachian Basin, TN-KY (Panel 7 of 7) Oil and Gas Fields By 2001 Gas

  10. BIG SANDY IDA ONEID A WILL IAM SBU RG BU RNIN G SPRIN GS WIN

    U.S. Energy Information Administration (EIA) Indexed Site

    100.1 - 1,000 MBOE 1,000.1 - 10,000 MBOE 10,000.1 - 100,000 MBOE > 100,000 MBOE Appalachian Basin Boundary Appalachian Basin, TN-KY (Panel 7 of 7) Oil and Gas Fields By 2001 BOE

  11. BASIN VER DE GREAT ER ANETH BU G BAR KER DOME HOR SESH OE UTE DOME

    Gasoline and Diesel Fuel Update (EIA)

    BOE Reserve Class 0 20 40 10 30 Miles ± The mapped oil and gas field boundary outlines were created by the Reserves and Production Division, Office of Oil and Gas, Energy Information Administration pursuant to studies required by Section 604 of the Energy Policy and Conservation Act Amendments of 2000 (P.L. 106-469). The boundaries are not informed by subsurface structural information. The data and methods used in their creation are detailed in a report, "Scientific Inventory of Onshore

  12. BASIN VER DE GREAT ER ANETH BU G BAR KER DOME HOR SESH OE UTE DOME

    Gasoline and Diesel Fuel Update (EIA)

    Gas Reserve Class 0 20 40 10 30 Miles ± The mapped oil and gas field boundary outlines were created by the Reserves and Production Division, Office of Oil and Gas, Energy Information Administration pursuant to studies required by Section 604 of the Energy Policy and Conservation Act Amendments of 2000 (P.L. 106-469). The boundaries are not informed by subsurface structural information. The data and methods used in their creation are detailed in a report, "Scientific Inventory of Onshore

  13. BASIN VER DE GREAT ER ANETH BU G BAR KER DOME HOR SESH OE UTE...

    U.S. Energy Information Administration (EIA) Indexed Site

    Liquids Reserve Class 0 20 40 10 30 Miles The mapped oil and gas field boundary outlines were created by the Reserves and Production Division, Office of Oil and Gas, Energy ...

  14. Searches for new physics in the tt-bar events at CDF

    SciTech Connect (OSTI)

    Loginov, Andrey; /Yale U.

    2009-01-01

    The authors review the latest results on searches for physics beyond the Standard Model in the top quark sector at CDF Run II in a data sample with integrated luminosity up to 2.8 fb{sup -1}. Since its discovery, the top quark has appeared to be a very special object. It is distinguished by its large mass ({approx} 170 GeV) close to the scale of electroweak symmetry breaking (EWSB), and a Yukawa coupling surprisingly close to one (0.98). Is the top quark mass generated by the Higgs mechanism as the Standard Model (SM) predicts, or does it play a more fundamental role in the EWSB? How would physics beyond the standard model (SM) affect top quark properties? Searches for new physics (NP) should provide answers to the many open questions left by the SM. In these proceedings they present the latest CDF results on the searches for exotic decay modes of the top quark, as well as the production and decay of new particles into final states with a top quark pair. The analyses of the Run II data are performed with approximately 30 times the statistics of the Run I top quark discovery.

  15. Search for New Phenomena in tt Events with Large Missing Transverse Momentum

    SciTech Connect (OSTI)

    Golling, Tobias

    2014-06-12

    The ATLAS Run I data as provided by CERNs LHC has been systematically searched for the presence of supersymmetric partners of the top quark (stops) using the identification of charm-flavored jets and boosted top tagging. No signs of stop could be established yet.

  16. Microsoft PowerPoint - 2nd Qtr 2010 Presentation _compressed tt mh.ppt [Compatibility Mode]

    Office of Legacy Management (LM)

    Second Quarter 2010 Surveillance and Maintenance Report for the LM Rocky Flats Site 2 Surface Water Monitoring and Operations Second Quarter 2010 3 Pond Operations - Second Quarter 2010 Terminal Pond Discharges: * Pond A-4: May 1 through May 19, 2010, 32.4 MG * Pond B-5: April 23 through May 16, 2010, 20.8 MG Transfers: * A-3 to A-4: intermittently during the quarter; total of 24.2 MG Pond Levels: * As of June 1, 2010, Ponds A-3, A-4, B-5, and C-2 and the Landfill Pond were holding approximately

  17. DOE Hydrogen and Fuel Cells Program Record #13007: Industry Deployed Fuel Cell Backup Power (BuP)

    Broader source: Energy.gov [DOE]

    This record from the DOE Hydrogen and Fuel Cells Program describes the number of current and planned fuel cell deployments for backup power applications.

  18. Search for Z' resonances decaying to tt¯; in dilepton+jets final states in pp collisions at √s=7 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Aguilo, E.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; et al

    2013-04-03

    A search for resonances decaying to top quark-antiquark pairs is performed using a dilepton+jets data sample recorded by the CMS experiment at the LHC in pp collisions at √s=7 TeV corresponding to an integrated luminosity of 5.0 b⁻¹. No significant deviations from the standard model background are observed. Upper limits are presented for the production cross section times branching fraction of top quark-antiquark resonances for masses from 750 to 3000 GeV. In particular, the existence of a leptophobic topcolor particle Z' is excluded at the 95% confidence level for resonance masses MZ'Z'=0.012MZ', and MZ'=0.10MZ'.

  19. Measurement of the tt, WW and Z -> tautau Production Cross Sections in p anti-p collisions at s**(1/2) = 1.96 TeV

    SciTech Connect (OSTI)

    Carron Montero, Sebastian Fernando; /Duke U.

    2006-11-01

    In this thesis we present a new technique to analyze events containing two highly energetic leptons, as a probe of the Standard Model. The philosophy is to consider the data in a more global way, as opposed to the more traditional process dependent approach of extracting a given signal over the expected backgrounds by using various kinematical requirements. We use our global technique to simultaneously measure the cross sections of the main Standard Model processes; the t{bar t}, WW and Z {yields} {tau}{tau} production from p{bar p} collisions at {radical}s = 1.96 TeV in the CDF detector at Fermilab. We select events by requiring they contain two highly energetic leptons (e{mu}, ee, or {mu}{mu}), and make no other kinematic requirements, except for the ee and {mu}{mu} channels. We then use a likelihood fit of the data in the two-dimensional phase space defined by the missing transverse energy (E{sub T}) and the number of jets in the event (N{sub jet}), to the expected Standard Model distributions, to simultaneously extract the production cross-sections of the main process contributing to our dilepton sample.

  20. Search for Z' resonances decaying to tt¯; in dilepton+jets final states in pp collisions at √s=7 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Aguilo, E.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; et al

    2013-04-03

    A search for resonances decaying to top quark-antiquark pairs is performed using a dilepton+jets data sample recorded by the CMS experiment at the LHC in pp collisions at √s=7 TeV corresponding to an integrated luminosity of 5.0 b⁻¹. No significant deviations from the standard model background are observed. Upper limits are presented for the production cross section times branching fraction of top quark-antiquark resonances for masses from 750 to 3000 GeV. In particular, the existence of a leptophobic topcolor particle Z' is excluded at the 95% confidence level for resonance masses MZ'<1.3 TeV for ΓZ'=0.012MZ', and M<1.9 TeV for ΓZ'=0.10MZ'.

  1. Assignment of the luminescing states of [Au{sup 1}Rh{sup 1}({sup t}BuNC){sub 2}({mu}-dppm){sub 2}][PF{sub 6}]{sub 2}

    SciTech Connect (OSTI)

    Striplin, D.R.; Crosby, G.A.

    1995-07-13

    Fluorescence, phosphorescence, and excitation spectra were measured on the title compound. These results were augmented with polarization ratios obtained at 77 K and detailed studies of the temperature dependence of the phosphorescence in the 77-4 K range. The phosphorescence decay rate at K was also recorded as a function of an applied magnetic field. All the results are consistent with a 4d{sub z}Rh{sup 1} {yields} 6p{sub 2}Au{sup 1} orbital promotion leading to emitting {sup 1}A, {sup 3}A{sub 1} terms in pseudo-C{sub 2v} symmetry. The {sup 3}A{sub 1} term is split by spin-orbit coupling into a forbidden A{sub 2} state lying lowest followed by a quasi-degenerate pair, [B{sub 1}(x), B{sub 2}(y)] lying approximately 16 cm{sup -1} higher that decays >500 times faster than the lowest one. 28 refs., 6 figs.

  2. Application to Export Electric Energy OE Docket No. EA-404 Chubu...

    Office of Environmental Management (EM)

    4 Chubu TT Energy Management Inc. Application to Export Electric Energy OE Docket No. EA-404 Chubu TT Energy Management Inc. Application from Chubu TT Energy to export electric...

  3. Facility Disposition Safety Strategy RM

    Office of Environmental Management (EM)

    ... Transition Team TT General Guidance GG Hazard Characterization HC Turnover ... (TT-4.4) General RequirementsGuidance GG-0 Have an inventory of available documents ...

  4. Top physics: measurement of the tt-bar production cross section in p anti-p collisions at s**(1/2) = 1.96 tev using lepton + jets events with secondary vertex b-tagging

    SciTech Connect (OSTI)

    Acosta, D.; The CDF Collaboration

    2005-04-07

    We present a measurement of the t{bar t} production cross section using events with one charged lepton and jets from p{bar p} collisions at a center-of-mass energy of 1.96TeV. In these events, heavy flavor quarks from top quark decay are identified with a secondary vertex tagging algorithm. From 162 pb{sup -1} of data collected by the Collider Detector at Fermilab, a total of 48 candidate events are selected, where 13.5 {+-} 1.8 events are expected from background contributions. We measure a t{bar t} production cross section of 5.6{sub -1.1}{sup _1.2}(stat.){sub -0.6}{sup +0.9}(syst.)pb.

  5. Measurement of the tt¯ production cross-section as a function of jet multiplicity and jet transverse momentum in 7 TeV proton-proton collisions with the ATLAS detector

    SciTech Connect (OSTI)

    Aad, G.

    2015-01-08

    The tt¯ production cross-section dependence on jet multiplicity and jet transverse momentum is reported for proton-proton collisions at a centre-of-mass energy of 7 TeV in the single-lepton channel. This data was collected with the ATLAS detector at the CERN Large Hadron Collider and comprise the full 2011 data sample corresponding to an integrated luminosity of 4.6 fb–1. Differential cross-sections are presented as a function of the jet multiplicity for up to eight jets using jet transverse momentum thresholds of 25, 40, 60, and 80 GeV, and as a function of jet transverse momentum up to the fifth jet. The results are shown after background subtraction and corrections for all known detector effects, within a kinematic range closely matched to the experimental acceptance. Several QCD-based Monte Carlo models are compared with the results. Sensitivity to the parton shower modelling is found at the higher jet multiplicities, at high transverse momentum of the leading jet and in the transverse momentum spectrum of the fifth leading jet. As a result, the MC@NLO+HERWIG MC is found to predict too few events at higher jet multiplicities.

  6. Record of Categorical Exclusion (CX) Determination, Office of Electricity

    Energy Savers [EERE]

    Delivery and Energy Reliability (OE): EA-404 Chubu TT Energy Management Inc. | Department of Energy Electricity Delivery and Energy Reliability (OE): EA-404 Chubu TT Energy Management Inc. Record of Categorical Exclusion (CX) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-404 Chubu TT Energy Management Inc. Application from Chubu TT to export electric energy to Canada. Record of Categorical Exclusion. PDF icon EA-404 Chubu TT (CN).pdf More Documents &

  7. Final Scientific/Technical Report Grant title: Use of ARM Measurements of Spectral Zenith Radiance for Better Understanding of 3D Cloud-Radiation Processes and Aerosol-Cloud Interaction This is a collaborative project with the NASA GSFC project of Dr. A. Marshak and W. Wiscombe (PIs). This report covers BU activities from February 2011 to June 2011 and BU "œno-cost extension" activities from June 2011 to June 2012. This report summarizes results that complement a final technical report submitted by the PIs in 2011.

    SciTech Connect (OSTI)

    Knyazikhin, Y

    2012-09-10

    Main results are summarized for work in these areas: spectrally-invariant approximation within atmospheric radiative transfer; spectral invariance of single scattering albedo for water droplets and ice crystals at weakly absorbing wavelengths; seasonal changes in leaf area of Amazon forests from leaf flushing and abscission; and Cloud droplet size and liquid water path retrievals from zenith radiance measurements.

  8. DOE Hydrogen and Fuel Cells Program Record #13007: Industry Deployed...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (BuP) DOE Hydrogen and Fuel Cells Program Record 13007: Industry Deployed Fuel Cell Backup Power (BuP) This record from the DOE Hydrogen and Fuel Cells Program describes the ...

  9. Ab initio thermodynamic approach to identify mixed solid sorbents...

    Office of Scientific and Technical Information (OSTI)

    Such Tt may be outside the operating temperature range (To) for a practical capture technology. To adjust Tt to fit the practical To, in this study, three scenarios of mixing ...

  10. Measurement of the partial cross sections {sigma}{sub TT}, {sigma}{sub LT}, and ({sigma}{sub T} + {epsilon}{sigma}{sub L}) of the {sup 1}H(e, e{sup '{pi}+})n reaction in the {Delta}(1232) resonance

    SciTech Connect (OSTI)

    Kirkpatrick, J. M.; Calarco, J.; Holtrop, A.; Sparveris, N. F.; Nakagawa, I.; Bernstein, A. M.; Bertozzi, W.; Botto, T.; Casagrande, F.; Dow, K.; Farkondeh, M.; Gilad, S.; Kowalski, S.; Milner, R.; Sirca, S.; Stave, S.; Tsentalivich, G.; Tschalaer, C.; Turchinetz, W.; Zhou, Z.-L.

    2011-08-15

    We report precision {sup 1}H(e, e{sup '{pi}+})n measurements in the {Delta}(1232) resonance at Q{sup 2}=0.127(GeV/c){sup 2} obtained at the MIT-Bates out-of-plane scattering facility. These are the lowest, but nonzero, Q{sup 2} measurements in the {pi}{sup +} channel. The data offer tests of the theoretical calculations, particularly of the background amplitude contributions. The chiral effective field theory and Sato-Lee model calculations are not in agreement with this experiment.

  11. First measurement of the fraction of top-quark pair production through gluon-gluon fusion

    SciTech Connect (OSTI)

    Aaltonen, T.; Maki, T.; Mehtala, P.; Orava, R.; Osterberg, K.; Saarikko, H.; Remortel, N. van; Adelman, J.; Brubaker, E.; Fedorko, W. T.; Grosso-Pilcher, C.; Kim, Y. K.; Kwang, S.; Levy, S.; Paramonov, A. A.; Schmidt, M. A.; Shochet, M.; Wolfe, C.; Yang, U. K.; Yorita, K.

    2008-12-01

    We present the first measurement of {sigma}(gg{yields}tt)/{sigma}(pp{yields}tt). We use 0.96 fb{sup -1} of {radical}(s)=1.96 TeV pp collision data recorded with the CDF II detector at Fermilab. Using charged particles with low transverse momentum in tt events, we find {sigma}(gg{yields}tt)/{sigma}(pp{yields}tt)=0.07{+-}0.14(stat){+-}0.07(syst), corresponding to a 95% confidence level upper limit of 0.33, in agreement with the standard model next-to-leading-order prediction of 0.15{+-}0.05.

  12. Everest Refrigeration: Order (2015-SE-42001) | Department of Energy

    Office of Environmental Management (EM)

    Order (2015-SE-42001) Everest Refrigeration: Order (2015-SE-42001) June 9, 2015 DOE ordered Bu Sung America Corporation (dba Everest Refrigeration) to pay a $12,080 civil penalty after finding Bu Sung had manufactured and distributed in commerce in the U.S. at least 64 units of noncompliant commercial refrigerator basic model ESGR3. The Order adopted a Compromise Agreement, which reflected settlement terms between DOE and Bu Sung. PDF icon Everest Refrigeration: Order (2015-SE-42001) More

  13. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... The Role of Additive in Diketopyrrolopyrrole-based Small Molecular Bulk Heterojunction Solar Cells Wang, Hongyu ; Liu, Feng ; Bu, Laju ; Gao, Jun ; Wang, Cheng ; Wei, Wei ; ...

  14. Alternative Energy Finance | Open Energy Information

    Open Energy Info (EERE)

    Finance Jump to: navigation, search Name: Alternative Energy Finance Place: London, United Kingdom Zip: NW11 8BU Sector: Renewable Energy Product: String representation...

  15. Envirocapital | Open Energy Information

    Open Energy Info (EERE)

    Envirocapital Jump to: navigation, search Name: Envirocapital Place: London, United Kingdom Zip: EC4M 8BU Sector: Renewable Energy Product: Provides corporate finance advice to the...

  16. Mr. John E. Kieling, Bureau Chief Hazardous Waste Bureau

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Division New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, NM 87508-6303 New Mexico Environment Department Harold Runnels Bu ildi ng 1190...

  17. Lattice Quantum Chromodynamics

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lattice Quantum Chromodynamics Lattice Quantum Chromodynamics QCD-BU.jpg Key Challenges: Although the QCD theory has been extensively tested at at high energies, at low energies or...

  18. Microsoft Word - Policy Flash 2010-78 Attachment 1 Unsuccessful...

    Office of Environmental Management (EM)

    name and address of the offeror receiving the award: ABC Company. 2222 Anywhere Street Sun City, TT 22222 4. Contract Value: 5. Contract award date:...

  19. Record of Categorical Exclusion (CX) Determination, Office of...

    Office of Environmental Management (EM)

    Electricity Delivery and Energy Reliability (OE): EA-404 Chubu TT Energy Management Inc. Record of Categorical Exclusion (CX) Determination, Office of Electricity Delivery and...

  20. Microsoft Word - Argonne_WindPowerForecasting_Report_Final_Nov...

    Office of Scientific and Technical Information (OSTI)

    R.A. Anthes and T.T. Warner, "Development of hydrodynamic models suitable for air pollution and other mesometeorological studies," Monthly Weather Review, vol. 106, pp....

  1. Microcab Industries Ltd | Open Energy Information

    Open Energy Info (EERE)

    Microcab Industries Ltd Place: Coventry, United Kingdom Zip: CV1 2TT Sector: Hydro, Hydrogen Product: Urban taxi and light freight vehicle powered by a hydrogen fuel cell....

  2. Potential partnerships and funding from a variety of sources

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    10915 Partnerships for Innovation: Accelerating Innovation Research-Technology Translation (PFI: AIR-TT) Letter of intent due: 9815 Quantum Information Science Closes: 12...

  3. A=18F (1983AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1979DA15, 1980GO01, 1980KU05, 1980MA18, 1981EL1D, 1981ER03, 1981GR06, 1982KI02). Cluster, collective and deformed models: (1977BU22, 1978BU03, 1978PI1E, 1978SA15,...

  4. A=18O (1983AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1979DA15, 1979WU06, 1980GO01, 1980KU05, 1980MA18, 1981EL1D, 1982KI02, 1982OL01). Cluster, collective and deformed models: (1977BU22, 1978BU03, 1978CH26, 1978PI1E,...

  5. Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at $\\sqrt{s} = 8$ $\\,\\text {TeV}$

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, Vardan

    2014-09-17

    The measurement of a cross section for the production of top quarkantiquark pairs (tt) in association with a vector boson V (W or Z) in proton-proton collisions at ?s=8 TeV is presented. The results are based on a dataset corresponding to an integrated luminosity of 19.5 fb-1 recorded with the CMS detector at the LHC. The measurement is performed in three leptonic (e and ?) channels: a same-sign dilepton analysis targeting ttW events, and trilepton and four-lepton analyses designed for ttZ events. In the same-sign dilepton channel, the ttW cross section is measured as ?ttW=170+90-80(stat)70(syst)fb, corresponding to a significance ofmore1.6 standard deviations over the background-only hypothesis. Combining the trilepton and four-lepton channels, a direct measurement of the ttZ cross section, ?ttZ=200+80-70(stat)+40-30(syst)fb-1, is obtained with a significance of 3.1 standard deviations. Finally, the measured cross sections are compatible with standard model predictions within their experimental uncertainties. The inclusive ttV process is observed with a significance of 3.7 standard deviations from the combination of all three leptonic channels.less

  6. Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at √s=8 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, Vardan

    2014-09-17

    The measurement of a cross section for the production of top quark–antiquark pairs (tt¯) in association with a vector boson V (W or Z) in proton-proton collisions at √s=8 TeV is presented. The results are based on a dataset corresponding to an integrated luminosity of 19.5 fb-1 recorded with the CMS detector at the LHC. The measurement is performed in three leptonic (e and μ) channels: a same-sign dilepton analysis targeting tt¯W events, and trilepton and four-lepton analyses designed for tt¯Z events. In the same-sign dilepton channel, the tt¯W cross section is measured as σtt¯W=170+90-80(stat)±70(syst)fb, corresponding to a significance ofmore » 1.6 standard deviations over the background-only hypothesis. Combining the trilepton and four-lepton channels, a direct measurement of the tt¯Z cross section, σtt¯Z=200+80-70(stat)+40-30(syst)fb-1, is obtained with a significance of 3.1 standard deviations. Finally, the measured cross sections are compatible with standard model predictions within their experimental uncertainties. The inclusive tt¯V process is observed with a significance of 3.7 standard deviations from the combination of all three leptonic channels.« less

  7. Iron Complexes Bearing Diphosphine Ligands with Positioned Pendant Amines as Electrocatalysts for the Oxidation of H2

    SciTech Connect (OSTI)

    Liu, Tianbiao L.; Liao, Qian; O'Hagan, Molly J.; Hulley, Elliott; DuBois, Daniel L.; Bullock, R. Morris

    2015-06-22

    The synthesis and spectroscopic characterization of CpC5F4NFe(PtBu2NBn2)Cl, [3-Cl] (where C5F4N is the tetrafluorpyridyl substituent and PtBu2NBn2 = 1,5-di(tert-butyl)-3,7-di(benzyl)-1,5-diaza-3,7-diphosphacyclooctane) are reported. Complex 3-Cl and previously reported [CpC5F4NFe(PtBu2NtBu2)Cl], 4-Cl, are precursors to intermediates in the catalytic oxidation of H2, including CpC5F4NFe(PtBu2NBn2)H (3-H), CpC5F4NFe(PtBu2NtBu2)H (4-H), [CpC5F4NFe(PtBu2NBn2)]BArF4 ([3](BArF4), [CpC5F4NFe(PtBu2NtBu2)]BArF4 ([4](BArF4), [CpC5F4NFe(PtBu2NBn2)(H2)]BArF4 ([3-H2]BArF4), and [CpC5F4NFe(PtBu2NtBu2H)H]BArF4 ([4-FeH(NH)]BArF4). All of these complexes were characterized by spectroscopic and electrochemical studies; 3-Cl, 3-H and 4-Cl were also characterized by single crystal diffraction studies. 3-H and 4-H are electrocatalysts for H2 (1.0 atm) oxidation in the presence of a excess of the amine base N-methylpyrrolidine, with turnover frequencies at 22 °C of 2.5 s-1 and 0.5 s-1, and overpotentials at Ecat/2 of 235 mV and 95 mV, respectively. Studies of individual chemical and/or electrochemical reactions of the various intermediates provide important insights into the factors governing the overall catalytic activity for H2 oxidation, and provide important insights into the role of the pendant base of the [FeFe] hydrogenase active site. This work was supported by the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy.

  8. Cobalt Complexes Containing Pendant Amines in the Second Coordination Sphere as Electrocatalysts for H2 Production

    SciTech Connect (OSTI)

    Fang, Ming; Wiedner, Eric S.; Dougherty, William G.; Kassel, W. S.; Liu, Tianbiao L.; DuBois, Daniel L.; Bullock, R. Morris

    2014-10-27

    A series of heteroleptic 17e- cobalt complexes, [CpCoII(PtBu2NPh2)](BF4), [CpC6F5CoII(PtBu2NPh2)](BF4), [CpC5F4NCoII(PtBu2NPh2)](BF4), [where P2tBuN2Ph = 1,5-diphenyl-3,7-di(tert-butyl)-1,5-diaza-3,7-diphosphacyclooctane, CpC6F5 = C5H4(C6F5), and CpC5F4N = C5H4(C5F4N)] were synthesized, and structures of all three were determined by X-ray crystallography. Electrochemical studies showed that the CoIII/II couple of [CpC5F4NCoII(PtBu2NPh2)]+ appears 250 mV positive of the CoIII/II couple of [CpCoII(PtBu2NPh2)] as a result of the strongly electron-withdrawing perfluorpyridyl substituent on the Cp ring. Reduction of these paramagnetic CoII complexes by KC8 led to the diamagnetic 18e- complexes CpICo(PtBu2NPh2), CpC6F5CoI(PtBu2NPh2), CpC5F4NCoI(PtBu2NPh2), which were also characterized by crystallography. Protonation of these neutral CoI complexes led to the cobalt hydrides [CpCoIII(PtBu2NPh2)H](BF4), [CpC6F5CoIII(PtBu2NPh2)H](BF4), and [CpC5F4NCoIII(PtBu2NPh2)H](BF4). The cobalt hydride with the most electron-withdrawing Cp ligand, [CpC5F4NCoIII(PtBu2NPh2)H]+ is an electrocatalyst for production of H2 using 4-MeOC6H4NH3BF4 (pKaMeCN = 11.86) with a turnover frequency of 350 s-1 and an overpotential of 0.75 V. Experimental measurement of thermochemical data provided further insights into the thermodynamics of H2 elimination. This research was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy.

  9. Island Gas | Open Energy Information

    Open Energy Info (EERE)

    United Kingdom Zip: W1J 7BU Sector: Renewable Energy Product: UK-based coal bed methane company, Island Gas was the subject of a reverse takeover by KP Renewables in...

  10. MHK Projects/Makah Bay Offshore Wave Pilot Project | Open Energy...

    Open Energy Info (EERE)

    mooringanchoring and electrical connection system; (2) a 3.7-statute-mile-long, direct current (DC) submarine transmission cable connecting from one of the AquaBuOY's...

  11. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Guo, Shaojun (3) Su, Dong (2) Bu, Lingzheng (1) Chen, Gen (1) Ding, Jiabao (1) Guo, Jun ... F. Fidler ; He, Kai ; Su, Dong ; Chen, Gen ; Lin, Qianglu ; Pietryga, Jeffrey M. ; ...

  12. Class 1 Permit Modification Notification

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Bu il ding 1 Santa Fe, New Mexico 87505-6303 JUL 0 5 2011 Subject: Notification of a Class 1 Permit...

  13. West Central Soy | Open Energy Information

    Open Energy Info (EERE)

    Soy Jump to: navigation, search Name: West Central Soy Place: Iowa Product: Biodiesel producer based in Iowa, Owned bu a soy farmer coop References: West Central Soy1 This...

  14. Center for Nanophase Materials Sciences (CNMS) - Publications

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    M.; Decker, S. .R; Bu, L. T.; Zhao, X. C.; McCabe, C.; Wohlert, J.; Bergenstrahle, M.; Brady, J. W.; Adney, W. S.; Himmel, M. E.; Crowley, M. F., ":The O-Glycosylated Linker from...

  15. Everest Refrigeration: Noncompliance Determination (2015-SE-42001) |

    Office of Environmental Management (EM)

    Department of Energy Noncompliance Determination (2015-SE-42001) Everest Refrigeration: Noncompliance Determination (2015-SE-42001) April 24, 2015 DOE issued a Notice of Noncompliance Determination to Bu Sung America Corporation (dba Everest Refrigeration) finding that commercial refrigeration equipment model number ESGR3 does not comport with the energy conservation standards. DOE determined the product was noncompliant based on DOE testing. Bu Sung must immediately notify each person (or

  16. Homoleptic Ce(III) and Ce(IV) Nitroxide Complexes: Significant Stabilization of the 4+ Oxidation State

    SciTech Connect (OSTI)

    Bogart, Justin A.; Lewis, Andrew J.; Medling, Scott A.; Piro, Nicholas A.; Carroll, Patrick J.; Booth, Corwin H.; Schelter, Eric J.

    2014-06-25

    Electrochemical experiments performed on the complex Ce-IV[2-((BuNO)-Bu-t)py](4), where [2-((BuNO)-Bu-t)py](-) = N-tert-butyl-N-2-pyridylnitroxide, indicate a 2.51 V stabilization of the 4+ oxidation state of Ce compared to [(Bu4N)-Bu-n](2)[Ce(NO3)(6)] in acetonitrile and a 2.95 V stabilization compared to the standard potential for the ion under aqueous conditions. Density functional theory calculations suggest that this preference for the higher oxidation state is a result of the tetrakis(nitroxide) ligand framework at the Ce cation, which allows for effective electron donation into, and partial covalent overlap with, vacant 4f orbitals with delta symmetry. The results speak to the behavior of CeO2 and related solid solutions in oxygen uptake and transport applications, in particular an inherent local character of bonding that stabilizes the 4+ oxidation state. The results indicate a cerium(IV) complex that has been stabilized to an unprecedented degree through tuning of its ligand-field environment.

  17. Experimental investigation of muon-catalyzed t + t fusion

    SciTech Connect (OSTI)

    Bogdanova, L. N.; Bom, V. R.; Demin, A. M.; Demin, D. L.; Eijk, C. W. E. van; Filchagin, S. V.; Filchenkov, V. V.; Grafov, N. N. Grishechkin, S. K.; Gritsaj, K. I.; Konin, A. D.; Kuryakin, A. V.; Medved', S. V.; Musyaev, R. K.; Rudenko, A. I.; Tumkin, D. P.; Vinogradov, Yu. I.; Yukhimchuk, A. A.; Yukhimchuk, S. A.; Zinov, V. G.

    2009-02-15

    The muon-catalyzed fusion ({mu}CF) process in tritium was studied by the {mu}CF collaboration on the muon beam of the JINR Phasotron. The measurements were carried out with a liquid tritium target at the temperature 22 K and density approximately 1.25 of the liquid hydrogen density (LHD). Parameters of the {mu}CF cycle were determined: the tt{mu} muonic molecule formation rate {lambda}{sub tt{mu}} = 2.84(0.32) {mu}s{sup -1}, the tt{mu} fusion reaction rate {lambda}{sub f} = 15.6(2.0) {mu}s{sup -1}, and the probability of muon sticking to helium {omega}{sub tt}= 13.9(1.5)%. The results agree with those obtained earlier by other groups, but better accuracy was achieved due to our unique experimental method.

  18. 4H

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    measured (particle)(particle)-coin, missing mass spectrum. 1980SE08: 7Li(-, nt), E at rest; measured tt-coin. 4H deduced possible resonance. 1982AL08: 6Li(6Li, 8B), E 72 MeV....

  19. Process Design and Economics for the Conversion of Lignocellulosic...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... e.g., PUMP Equipment type: a Code indicating the specific type of ... T-810 Boiler Feed Tank VESSEL VERTICAL PRESSURE 110 250 CS 5' 15' T-T ACCE V8.4 T-812 Steam drum VESSEL ...

  20. Microsoft Word - Policy Flash 2010-78 Attachment 4 Successful...

    Broader source: Energy.gov (indexed) [DOE]

    Date Mr. John Doe President ABC Company 2222 Anywhere Street Sun City, TT 22222 Dear Mr. Doe: NOTICE OF SELECTION OF insert name of successful offeror FOR THE (insert title...

  1. Phone Log: Spoke to: C.V. Chung I Date/Time: 5/29/14

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    L (CONTR) - TOT-D1TT-2 Subject: FW: Request for WECC Maps - by non-profit org Hello Kim: One of my staff members received this third-party request from WECC for a "BPA...

  2. Search for new physics in t?+ large ET-> bb?qq?qq? + large ET final state in pp? collisions at ?s=1.96 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T; Gonzalez, B Alvarez; Cantabria Inst. of Phys.; Amerio, S; Amidei, D; Anastassov, A; Annovi, A

    2011-11-11

    We present a search for a new particle T' decaying to a top quark via T' = t + X, where X goes undetected. We use a data sample corresponding to 5.7 fb-1 of integrated luminosity of pp? collisions with ?s = 1.96 TeV, collected at Fermilab Tevatron by the CDF II detector. Our search for pair production of T' is focused on the hadronic decay channel, pp? = T'T' ?= tt?+XX?=bqq?b?q?q + XX?. We interpret our results in terms of a model where T' is an exotic fourth generation quark and X is a dark matter particle. The datamoreare consistent with standard model expectations. We set a limit on the generic production of T'T' ? = tt ?=+ XX?, excluding the fourth generation exotic quarks T' at 95% confidence level up to mT` = 400 GeV/c2 for mX ? 70 GeV/c2.less

  3. VOLUNTARY LEAVE TRANSFER PROGRAM

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Walker, Elizabeth M. NA Weber, Sally A. NA Becker, Melanie NE Morgan, Kelly NE Lyles, Monica D. OE Moore, Sharon M. OR Nance, Deborah L SC Mayes, Lynda A. SR Bectel, Robert W. TT

  4. Computation supporting biodefense

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ...t.ga.ta.gg.actgggtttta.a aacctgtgatggc.tc.aagaccct.gaggc.ATCCTCTCCTTTGCACGC CGTGGGACCAT.caggagaagttga..tccgtggcaggactcgc.gtcca ctc.ggacc.ga.ga.taccggcg.ctctttgagcc.tt.ca.gg.ctctt.g...

  5. Microsoft Word - taylor.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... MASA Technical Translation, NASA TT-F-790, 173-181. Clothiaux, EE, TP Ackerman, GG Mace, ... Turner, KP Moran, BE Martner, TP Ackerman, GG Mace, RT Marchand, KB Widener, DJ ...

  6. ARM - Publications: Science Team Meeting Documents

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Satellite Data Link on the ARM-UAV Payload McCoy, R.F, Tooman, T.T., and Bolton, W.B., Sandia National Laboratories Thirteenth Atmospheric Radiation Measurement (ARM) Science Team...

  7. ARM - Publications: Science Team Meeting Documents

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instrumentation for the AMR-UAV Payload McCoy, R.F., Tooman, T.T., and Bolton, W.B., Sandia National Laboratories Thirteenth Atmospheric Radiation Measurement (ARM) Science Team...

  8. ARM - Publications: Science Team Meeting Documents

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The ARM-UAV Grand Tour, SGP, NSA, TWP Tooman, T.T., Bolton, W.B.(a), and McCoy, R.F.(a), Sandia National Laboratories (a) Thirteenth Atmospheric Radiation Measurement (ARM) Science...

  9. DOE/EIA-0202(87/4Q) Energy Information Administration Short-Term

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4Q) Energy Information Administration Short-Term Energy Outlook Quarterly Projections October 1987 i- rt- jrt ort lort lort lort- iort- lort- ort- ort Tt- " t- . m erm Perm -Term -Term -Term -Term ,-Term -Term -Term -Term -Term -Term -Term -Term -Term -Term 71 e rrn TT1 "1 Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy "nergy -cry Outlook Outlook Outlook Outlook Outlook Outlook

  10. Molecular and Electronic Structure of Cyclic Trinuclear Gold(I) Carbeniate Complexes: Insights for Structure/Luminescence/Conductivity Relationships

    SciTech Connect (OSTI)

    McDougaldJr, Roy N; Chilukuri, Bhaskar; Jia, Huiping; Perez, Michael R; Rabaa, Hassan; Wang, Xiaoping; Nesterov, Vladimir; Cundari, Thomas R.; Gnade, Bruce E; Omary, Mohammad A

    2014-01-01

    An experimental and computational study of correlations between solid-state structure and optical/electronic properties of cyclotrimeric gold(I) carbeniates, [Au-3(RN=COR')(3)] (R, R' = H, Me, Bu-n, or (c)Pe), is reported. Synthesis and structural and photophysical characterization of novel complexes [Au-3(MeN=(COBu)-Bu-n)(3)], [Au-3((BuN)-Bu-n=COMe)(3)], [Au-3((BuN)-Bu-n=(COBu)-Bu-n)(3)], and [Au-3((c)PeN=COMe)(3)] are presented. Changes in R and R' lead to distinctive variations in solid-state stacking, luminescence spectra, and conductive properties. Solid-state emission and excitation spectra for each complex display a remarkable dependence on the solid-state packing of the cyclotrimers. The electronic structure of [Au-3(RN=COR')(3)] was investigated via molecular and solid-state simulations. Calculations on [Au-3(HN=COH)(3)] models indicate that the infinitely extended chain of eclipsed structures with equidistant Au-Au intertrimer aurophilic bonding can have lower band gaps, smaller Stokes shifts, and reduced reorganization energies (lambda). The action of one cyclotrimer as a molecular nanowire is demonstrated via fabrication of an organic field effect transistor and shown to produce a p-type field effect. Hole transport for the same cyclotrimer-doped within a poly(9-vinylcarbazole) host-produced a colossal increase in current density from similar to 1 to similar to 1000 mA/cm(2). Computations and experiments thus delineate the complex relationships between solid-state morphologies, electronic structures, and optoelectronic properties of gold(I) carbeniates.

  11. Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; et al

    2016-02-19

    This paper reports inclusive and differential measurements of the tt¯ charge asymmetry AC in 20.3 fb–1 of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the tt¯ system. The tt¯ pairs are selected in the single-lepton channels (e or μ) with at least four jets, and a likelihood fit is used to reconstruct the tt¯ event kinematics. A Bayesian unfolding procedure is performed to infer the asymmetry at parton level from themore » observed data distribution. The inclusive tt¯ charge asymmetry is measured to be AC = 0.009 ± 0.005) (stat. + syst.). As a result, the inclusive and differential measurements are compatible with the values predicted by the Standard Model.« less

  12. Nuclear Data Sheets for A = 50

    SciTech Connect (OSTI)

    Elekes, Zoltan; Timar, Janos; Singh, Balraj

    2011-01-15

    The experimental nuclear spectroscopic data for known nuclides of mass number 50 (Cl,Ar,K,Ca,Sc,Ti,V, Cr,Mn,Fe,Co,Ni) have been evaluated and presented together with Adopted properties for levels and {gamma} rays. This evaluation has been carried out about 15 years after the previous one by Thomas Burrows (1995Bu29). Except for {sup 50}Sc and {sup 50}V, extensive new data have become available for all the other nuclides in the intervening years. The data for {sup 50}Sc and {sup 50}V have also been checked again in detail and several changes made. No data are yet available for excited states in {sup 50}Cl, {sup 50}Ar and {sup 50}Ni. This work supersedes earlier evaluations (1995Bu29, 1990Bu18, 1984Al29, 1976Au07) of A=50 nuclides.

  13. The interactions of azure B, a metabolite of methylene blue, with acetylcholinesterase and butyrylcholinesterase

    SciTech Connect (OSTI)

    Petzer, Anl; Harvey, Brian H.; Petzer, Jacobus P.

    2014-02-01

    Methylene blue (MB) is reported to possess diverse pharmacological actions and is attracting increasing attention for the treatment of neurodegenerative disorders such as Alzheimer's disease. Among the pharmacological actions of MB, is the significant inhibition of acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). These activities may, at least in part, underlie MB's beneficial effects in Alzheimer's disease. MB is metabolized to yield N-demethylated products of which azure B, the monodemethyl metabolite, is the predominant species. Azure B has been shown to be pharmacologically active and also possesses a variety of biological actions. Azure B therefore may contribute to the pharmacological profile of MB. Based on these considerations, the present study investigates the possibility that azure B may, similar to MB, act as an inhibitor of human AChE and BuChE. The results document that azure B inhibits AChE and BuChE with IC{sub 50} values of 0.486 ?M and 1.99 ?M, respectively. The results further show that azure B inhibits AChE and BuChE reversibly, and that the modes of inhibition are most likely competitive. Although the AChE and BuChE inhibitory activities of azure B are twofold and fivefold, respectively, less potent than those recorded for MB [IC{sub 50}(AChE) = 0.214 ?M; IC{sub 50}(BuChE) = 0.389 ?M] under identical conditions, azure B may be a contributor to MB's in vivo activation of the cholinergic system and beneficial effects in Alzheimer's disease. - Highlights: Methylene blue (MB) is a known inhibitor of AChE and BuChE. Azure B, the major metabolite of MB, also is an inhibitor of AChE and BuChE. Azure B may be a contributor to MB's in vivo activation of the cholinergic system. Azure B may contribute to MB's potential in Alzheimer's disease therapy.

  14. Higher-order gravitational lensing reconstruction using Feynman diagrams

    SciTech Connect (OSTI)

    Jenkins, Elizabeth E.; Manohar, Aneesh V.; Yadav, Amit P.S.; Waalewijn, Wouter J. E-mail: amanohar@ucsd.edu E-mail: ayadav@physics.ucsd.edu

    2014-09-01

    We develop a method for calculating the correlation structure of the Cosmic Microwave Background (CMB) using Feynman diagrams, when the CMB has been modified by gravitational lensing, Faraday rotation, patchy reionization, or other distorting effects. This method is used to calculate the bias of the Hu-Okamoto quadratic estimator in reconstructing the lensing power spectrum up to O(?{sup 4}) in the lensing potential ?. We consider both the diagonal noise TT TT, EB EB, etc. and, for the first time, the off-diagonal noise TT TE, TB EB, etc. The previously noted large O(?{sup 4}) term in the second order noise is identified to come from a particular class of diagrams. It can be significantly reduced by a reorganization of the ? expansion. These improved estimators have almost no bias for the off-diagonal case involving only one B component of the CMB, such as EE EB.

  15. Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at ? = 8 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, Vardan

    2014-11-27

    A search is presented for standard model (SM) production of four top quarks (t?tt?t) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6? recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM (t?tt?t) production is ?SM(t?tt?t). A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence levelmoreon the cross section for producing four top quarks in the SM, where a limit of 32 17 fb is expected.less

  16. Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at ? = 8 TeV

    SciTech Connect (OSTI)

    Khachatryan, Vardan

    2014-11-27

    A search is presented for standard model (SM) production of four top quarks (t?tt?t) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6? recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM (t?tt?t) production is ?SM(t?tt?t). A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 17 fb is expected.

  17. Measurement of the differential cross section for top quark pair production in pp collisions at $\\sqrt{s}$ = 8 TeV

    SciTech Connect (OSTI)

    Khachatryan, Vardan

    2015-11-20

    The normalized differential cross section for top quark pair (tt) production is measured in pp collisions at a centre-of-mass energy of 8TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7fb1. The measurements are performed in the lepton+jets (e/? +jets) and in the dilepton (e+e, ?+?, and e??) decay channels. The tt cross section is measured as a function of the kinematic properties of the charged leptons, the jets associated to b quarks, the top quarks, and the tt system. The data are compared with several predictions from perturbative quantum chromodynamic up to approximate next-to-next-to-leading-order precision. Furthermore, no significant deviations are observed relative to the standard model predictions.

  18. Search for Standard Model Production of Four Top Quarks in the Lepton + Jets Channel in pp Collisions at $$\\sqrt{s}$$ = 8 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, Vardan

    2014-09-27

    Our search is presented for standard model (SM) production of four top quarks (t¯tt¯t) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb-1 recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM t¯tt¯t production is σSMt¯tt¯t≈1fb. A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. We determined that the data are consistent with expectations of the SM, and an upper limit of 32 fb is set atmore » a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected.« less

  19. Measurement of the differential cross section for top quark pair production in pp collisions at $$\\sqrt{s}$$ = 8 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, Vardan

    2015-11-20

    The normalized differential cross section for top quark pair (tt¯) production is measured in pp collisions at a centre-of-mass energy of 8TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7fb–1. The measurements are performed in the lepton+jets (e/μ +jets) and in the dilepton (e+e–, μ+μ–, and e±μ∓) decay channels. The tt¯ cross section is measured as a function of the kinematic properties of the charged leptons, the jets associated to b quarks, the top quarks, and the tt¯ system. The data are compared with several predictions from perturbative quantum chromodynamic upmore » to approximate next-to-next-to-leading-order precision. Furthermore, no significant deviations are observed relative to the standard model predictions.« less

  20. Search for Standard Model Production of Four Top Quarks in the Lepton + Jets Channel in pp Collisions at $\\sqrt{s}$ = 8 TeV

    SciTech Connect (OSTI)

    Khachatryan, Vardan

    2014-09-27

    Our search is presented for standard model (SM) production of four top quarks (t¯tt¯t) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb-1 recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM t¯tt¯t production is σSMtt¯t≈1fb. A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. We determined that the data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected.

  1. Microsoft PowerPoint - SequoiaFLOPWatt4Salishan2009_v1-Seager

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    i S t N FLOP/ W tt S i S t N FLOP/ W tt Sequoia Sets New FLOP/s:Watt Sequoia Sets New FLOP/s:Watt Standard Standard S d d S d d Salishan 2009 Mark Seager g Lawrence Livermore National Laboratory Version 1 28 April 2009 Lawrence Livermore National Laboratory LLNL-PRES-TBD This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. Overview The case for a low power approach Hi h l l S i ti d i High level

  2. SITES ELIHlNAlED FRCil FUW' ~1WWk'l ffi LY

    Office of Legacy Management (LM)

    SITES ELIHlNAlED FRCil FUW' ~1WWk'l ffi LY Lfcfi0n 31, I?%7 STGTE m rtE!xm ICmFIED cm&B fi re3xf.H ROJECT TIM #% HER M JWDlCTICd Cf M W.&f&t ff NIF, Ml TtE FKILIIY If0 LICWSES TO WRE ffiDliXClIVE tt%iML. IVJ R&w mm IS h-m. STTE S#W MC&TED W P4DlOKTIVIN kmvi t+mi BkcTmam

  3. HIGH PRESSURE COAL COMBUSTION KINETICS PROJECT

    SciTech Connect (OSTI)

    Stefano Orsino

    2003-07-25

    NEA completed the CFD simulations for all NBFZ tests. SRI resumed work on HPBO experiments and conducted preliminary tests using the UCONN impactor. UCONN prepared several samples of char for cross-sectional analysis by SEM and characterization is underway. BU completed the NBFZ char characterization program. CBK model had been implemented into Fluent.

  4. A=19C (72AJ02)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    72AJ02) (Not illustrated) 19C may have been observed in the 3 GeV proton bombardment of a 197Au target: if so it is particle stable (RA70). Its mass excess must then be < 37.9 MeV (18C + n). See also (ZE60A, BU71E

  5. A=20N (72AJ02)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    72AJ02) (Not illustrated) 20N has been observed in the bombardment of 232Th by 122 MeV 18O ions (AR69E, AR70D) and in the 3 GeV proton bombardment of 197Au (RA70): it is particle stable. See also (ZE60A, BA61F, BU71E

  6. Lanthanide(III) di- and tetra-nuclear complexes supported by a chelating tripodal tris(amidate) ligand

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Brown, Jessie L.; Jones, Matthew B.; Gaunt, Andrew J.; Scott, Brian L.; MacBeth, Cora E.; Gordon, John C.

    2015-04-06

    Syntheses, structural, and spectroscopic characterization of multinuclear tris(amidate) lanthanide complexes is described. Addition of K3[N(o-PhNC(O)tBu)3] to LnX3 (LnX3 = LaBr3, CeI3, and NdCl3) in N,N-dimethylformamide (DMF) results in the generation of dinuclear complexes, [Ln(N(o-PhNC(O)tBu)3)(DMF)]2(μ-DMF) (Ln = La (1), Ce (2), Nd(3)), in good yields. Syntheses of tetranuclear complexes, [Ln(N(o-PhNC(O)tBu)3)]4 (Ln = Ce (4), Nd(5)), resulted from protonolysis of Ln[N(SiMe3)2]3 (Ln = Ce, Nd) with N(o-PhNCH(O)tBu)3. As a result, in the solid-state, complexes 1–5 exhibit coordination modes of the tripodal tris(amidate) ligand that are unique to the 4f elements and have not been previously observed in transition metal systems.

  7. A=15N (70AJ04)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    70AJ04) (See Energy Level Diagrams for 15N) GENERAL: See Table 15.4 Table of Energy Levels (in PDF or PS) here. Model calculations:(HA57B, BR59M, FE59E, TA60L, BA61N, BU63D,...

  8. A=10B (66LA04)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    66LA04) (See Energy Level Diagrams for 10B) GENERAL: See (BA59F, BR59M, TA60L, TR61, IN62, BU63D, KU63B, ME63A, MO63C, OL63B, VL63A, WA63C, AM64, BA64V, FR64D, GR64C, MA64HH,...

  9. Slide 1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    95 Wa ste Sit es Re me dia ted 9 23 ,00 0 To ns of So il Re mo ved Fin al Re me dia tio n of 61 8-1 0 & 618 -11 Bu ria l Gr ou nd s Co mp let e 40 0 A re a Fa st Flu...

  10. A=7Li (1988AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    See also (1984AJ01) and Table 7.2 Table of Energy Levels (in PDF or PS) here. Shell model: (1983BU1B, 1983KU17, 1983SH1D, 1983VA31, 1984CH24, 1984REZZ, 1984VA06,...

  11. A=19F (1983AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1978DA1N, 1978MA2H, 1979DA15, 1980KU05, 1980MC1L, 1981ER03, 1981GR06, 1982KI02). Cluster, collective and rotational models: (1977BU22, 1977FO1E, 1978BR21, 1978CH26,...

  12. NOIJLVaiSINIWaV NOIlVlAldOdNI AOU3N3 Z661

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Pliufi aqi ui JHDDO 04 pajoadxa si 661 u pueuiap CDHO u qiMOJ aqj jo juaojad gg uBqi ajopM '(Z 31BU.J uoijduinssB ...

  13. Search for new T' particles in final states with large jet multiplicities and missing transverse energy in pp̄ collisions at √s=1.96 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2011-11-11

    We present a search for a new particle T' decaying to a top quark via T' = t + X, where X goes undetected. We use a data sample corresponding to 5.7 fb-1 of integrated luminosity of pp̄ collisions with √s = 1.96 TeV, collected at Fermilab Tevatron by the CDF II detector. Our search for pair production of T' is focused on the hadronic decay channel, pp̄ = T'T' ̄= tt̄+XX̄=bqq̄b̄q̄q + XX̄. We interpret our results in terms of a model where T' is an exotic fourth generation quark and X is a dark matter particle. The datamore » are consistent with standard model expectations. We set a limit on the generic production of T'T' ̄ = tt ̄=+ XX̄, excluding the fourth generation exotic quarks T' at 95% confidence level up to mT` = 400 GeV/c2 for mX ≤ 70 GeV/c2.« less

  14. Atterbury,Laura M DK-7 From: Ex

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    March 09, 2010 1234 PM To, FOIA Subject: FO(A Request i:l ( 11% 1) ON RI I % t t 11 I TIUS 1tt4 :- '' to e'a The following is a New FOJA request: Name: Torn Jacobs No...

  15. Search for the Standard Model Higgs boson produced in association with top quarks and decaying into bb¯ in pp collisions at √s = 8 TeV with the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.

    2015-07-29

    In this study, a search for the Standard Model Higgs boson produced in association with a top-quark pair, tt¯H, is presented. The analysis uses 20.3 fb–1 of pp collision data at √s=8 TeV, collected with the ATLAS detector at the Large Hadron Collider during 2012. The search is designed for the H→bb¯ decay mode and uses events containing one or two electrons or muons. In order to improve the sensitivity of the search, events are categorised according to their jet and b-tagged jet multiplicities. A neural network is used to discriminate between signal and background events, the latter being dominatedmore » by tt¯+jets production. In the single-lepton channel, variables calculated using a matrix element method are included as inputs to the neural network to improve discrimination of the irreducible tt¯+bb¯ background. No significant excess of events above the background expectation is found and an observed (expected) limit of 3.4 (2.2) times the Standard Model cross section is obtained at 95 % confidence level. The ratio of the measured tt¯H signal cross section to the Standard Model expectation is found to be μ=1.5±1.1 assuming a Higgs boson mass of 125GeV.« less

  16. Search for the Standard Model Higgs boson produced in association with top quarks and decaying into bb¯ in pp collisions at √s = 8 TeV with the ATLAS detector

    SciTech Connect (OSTI)

    Aad, G.

    2015-07-29

    In this study, a search for the Standard Model Higgs boson produced in association with a top-quark pair, tt¯H, is presented. The analysis uses 20.3 fb–1 of pp collision data at √s=8 TeV, collected with the ATLAS detector at the Large Hadron Collider during 2012. The search is designed for the H→bb¯ decay mode and uses events containing one or two electrons or muons. In order to improve the sensitivity of the search, events are categorised according to their jet and b-tagged jet multiplicities. A neural network is used to discriminate between signal and background events, the latter being dominated by tt¯+jets production. In the single-lepton channel, variables calculated using a matrix element method are included as inputs to the neural network to improve discrimination of the irreducible tt¯+bb¯ background. No significant excess of events above the background expectation is found and an observed (expected) limit of 3.4 (2.2) times the Standard Model cross section is obtained at 95 % confidence level. The ratio of the measured tt¯H signal cross section to the Standard Model expectation is found to be μ=1.5±1.1 assuming a Higgs boson mass of 125GeV.

  17. NATIONAL LEAD COMPANY OF OHIO

    Office of Legacy Management (LM)

    t-t AL- 1. + T fi r,y* t ,.- . NATIONAL LEAD COMPANY OF OHIO Ofll i iy Ci)wp HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET U-G b ;33y jl:tL G c-w &3(y I...

  18. Search for new T' particles in final states with large jet multiplicities and missing transverse energy in pp? collisions at ?s=1.96 TeV

    SciTech Connect (OSTI)

    Aaltonen, T.

    2011-11-11

    We present a search for a new particle T' decaying to a top quark via T' = t + X, where X goes undetected. We use a data sample corresponding to 5.7 fb-1 of integrated luminosity of pp? collisions with ?s = 1.96 TeV, collected at Fermilab Tevatron by the CDF II detector. Our search for pair production of T' is focused on the hadronic decay channel, pp? = T'T' ?= tt?+XX?=bqq?b?q?q + XX?. We interpret our results in terms of a model where T' is an exotic fourth generation quark and X is a dark matter particle. The data are consistent with standard model expectations. We set a limit on the generic production of T'T' ? = tt ?=+ XX?, excluding the fourth generation exotic quarks T' at 95% confidence level up to mT` = 400 GeV/c2 for mX ? 70 GeV/c2.

  19. OneTouch 4.0 Scanned Documents

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ".' .-.' .; . " c . ':-, A Publication of the Savannah River Ecology Laboratory National Environmental Research Park Program United States Department of Energy , ' , ' : '.- -; , .' : ..:,:...' ~, -~ .' '. "-:; 7A ,', , ' '.'; .~. . ",' " '~ ....;" . ',':' ._-~ ,... : . .... .~ <: ;:~,~.:,: :r. o * i * ~' . ,'." ..... , ~' J;i1'i~ '. J~. , " ', ' "" ,;; ;t! :':;J 'I1I$):i'iR tt ,WJ,S( ' (~,,!~d;;a~ an ,' account of.WQrk ; '*

  20. Measurement of $\\mathrm{ t \\bar{t} } $ production with additional jet activity, including b quark jets, in the dilepton decay channel using pp collisions at $\\sqrt{s} =$ 8 TeV

    SciTech Connect (OSTI)

    Khachatryan, Vardan

    2015-10-13

    Jet multiplicity distributions in top quark pair (tt) events are measured in pp collisions at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC using a data set corresponding to an integrated luminosity of 19.7 fb-1. The measurement is performed in the dilepton decay channels (e+e-,?+?- and e??). Furthermore, the absolute and normalized differential cross sections for tt production are measured as a function of the jet multiplicity in the event for different jet transverse momentum thresholds and the kinematic properties of the leading additional jets. The differential tt-b and tt-bb- cross sections are presented for the first time as a function of the kinematic properties of the leading additional b jets. Furthermore, the fraction of events without additional jets above a threshold is measured as a function of the transverse momenta of the leading additional jets and the scalar sum of the transverse momenta of all additional jets. Finally, the data are compared and found to be consistent with predictions from several perturbative quantum chromodynamics event generators and a next-to-leading ordercalculation.

  1. Ab initio thermodynamic approach to identify mixed solid sorbents for CO2 capture technology

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Duan, Yuhua

    2015-10-15

    Because the current technologies for capturing CO2 are still too energy intensive, new materials must be developed that can capture CO2 reversibly with acceptable energy costs. At a given CO2 pressure, the turnover temperature (Tt) of the reaction of an individual solid that can capture CO2 is fixed. Such Tt may be outside the operating temperature range (ΔTo) for a practical capture technology. To adjust Tt to fit the practical ΔTo, in this study, three scenarios of mixing schemes are explored by combining thermodynamic database mining with first principles density functional theory and phonon lattice dynamics calculations. Our calculated resultsmore » demonstrate that by mixing different types of solids, it’s possible to shift Tt to the range of practical operating temperature conditions. According to the requirements imposed by the pre- and post- combustion technologies and based on our calculated thermodynamic properties for the CO2 capture reactions by the mixed solids of interest, we were able to identify the mixing ratios of two or more solids to form new sorbent materials for which lower capture energy costs are expected at the desired pressure and temperature conditions.« less

  2. Technology Partnership Ombudsman - Roles, Responsibilities, Authorities and

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Accountabilities | Department of Energy Partnership Ombudsman - Roles, Responsibilities, Authorities and Accountabilities Technology Partnership Ombudsman - Roles, Responsibilities, Authorities and Accountabilities PDF icon Revised Roles and Responsibilities August 9 2011 FINAL.pdf More Documents & Publications Technology Partnership Ombudsman - Roles, Responsibilities, Authorities and Accountabilities TT Coordinator Ltr dated May 13 2010 ADR Revised Policy

  3. The Role of Ombudsmen in Dispute Resolution | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    The Role of Ombudsmen in Dispute Resolution The Role of Ombudsmen in Dispute Resolution A report by the General Accounting Office (GAO) on the role of ombudsmen in dispute resolution. PDF icon RoleOmbuds.pdf More Documents & Publications Human Capital: The Role of Ombudsmen in Dispute Resolution ADR Revised Policy TT Coordinator Ltr dated May 13 2010

  4. BPA-2010-02106-FOIA Request

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    .ddrr*. ph-, 11Ni Central Avenue, Bellingham, WA )8225 www,copp ugercarter.coni 1(Ii.67G.7545 36u.3m.tt369 September 15, 2010 F9 M .A1IIl m. -11PI 1 VI '..aIui Bethany C. Alien...

  5. Development of High-Temperature Ferritic Alloys and Performance Prediction Methods for Advanced Fission Energy Systems

    SciTech Connect (OSTI)

    G. RObert Odette; Takuya Yamamoto

    2009-08-14

    Reports the results of a comprehensive development and analysis of a database on irradiation hardening and embrittlement of tempered martensitic steels (TMS). Alloy specific quantitative semi-empirical models were derived for the dpa dose, irradiation temperature (ti) and test (Tt) temperature of yield stress hardening (or softening) .

  6. Human Capital: The Role of Ombudsmen in Dispute Resolution | Department of

    Office of Environmental Management (EM)

    Energy Human Capital: The Role of Ombudsmen in Dispute Resolution Human Capital: The Role of Ombudsmen in Dispute Resolution PDF icon Human Capital: The Role of Ombudsmen in Dispute Resolution More Documents & Publications The Role of Ombudsmen in Dispute Resolution ADR Revised Policy TT Coordinator Ltr dated May 13 2010

  7. A=12O (1985AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    5AJ01) (See the Isobar Diagram for 12O) 12O has been observed in the 16O(α, 8He) reaction at Eα = 117.4 MeV (1978KE06) and in the 12C(π+, π-) reaction at Eπ = 164 MeV (1983BL08; see for angular distribution) and 180 MeV (1980BU15). The mass excess of 12O is 32.10 ± 0.12 MeV (1978KE06), 32.059 ± 0.048 MeV (1980BU15): we adopt 32.065 ± 0.045 MeV. 12O is thus unstable to decay into 10C + 2p by 1.79 MeV and into 11N* + p by 0.45 MeV [note that 11N* is probably not the ground state of 11N and

  8. A=7Be (1988AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8AJ01) (See Energy Level Diagrams for 7Be) GENERAL: See also (1984AJ01) and Table 7.7 [Table of Energy Levels] (in PDF or PS) here. Nuclear models: (1983BU1B, 1983FU1D, 1983HO22, 1983PA06, 1984BA53, 1984KA06, 1984WA02, 1985FI1E, 1986FI07, 1986KR12, 1986VA13). Special states: (1982PO12, 1983BU1B, 1983HO22, 1984FI20, 1984WA02, 1985FI1E, 1986FI07, 1986VA13, 1986XU02, 1988KW02). Electromagnetic transitions, giant resonances: (1984KA06, 1985FI1E, 1986FI07, 1986ME13). Astrophysical questions:

  9. Evaluating ligands for use in polymer ligand film (PLF) for plutonium and uranium extraction

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Rim, Jung H.; Peterson, Dominic S.; Armenta, Claudine E.; Gonzales, Edward R.; Ünlü, Kenan

    2015-05-08

    We describe a new analyte extraction technique using Polymer Ligand Film (PLF). PLFs were synthesized to perform direct sorption of analytes onto its surface for direct counting using alpha spectroscopy. The main focus of the new technique is to shorten and simplify the procedure for chemically isolating radionuclides for determination through a radiometric technique. 4'(5')-di-t-butylcyclohexano 18-crown-6 (DtBuCH18C6) and 2-ethylhexylphosphonic acid (HEH[EHP]) were examined for plutonium extraction. Di(2-ethyl hexyl) phosphoric acid (HDEHP) were examined for plutonium and uranium extraction. DtBuCH18C6 and HEH[EHP] were not effective in plutonium extraction. HDEHP PLFs were effective for plutonium but not for uranium.

  10. Application of Gold Electrodes for the Study of Nickel Based Homogeneous Catalysts for Hydrogen Oxidation

    SciTech Connect (OSTI)

    Nepomnyashchii, Alexander B.; Liu, Fei; Roberts, John A.; Parkinson, Bruce A.

    2013-08-12

    Gold and glassy carbon working electrode materials are compared as suitable substrates for the hydrogen oxidation reaction with Ni(PCy2Nt-Bu2)2(BF4)2 used as a catalyst. Voltammetric responses showing electrocatalytic hydrogen oxidation mediated by the homogeneous electrocatalyst Ni(PCy2Nt-Bu2)2(BF4)2 are identical at glassy carbon and gold electrodes, which shows that gold electrode can be used for hydrogen oxidation reaction. This work is supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under FWP 56073.

  11. A=18C (72AJ02)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    72AJ02) (Not illuatrated) 18C is particle stable. Therefore its atomic mass excess, M - A, must be < 29.84 MeV [16C + 2n] (WA70E). 18C has been observed in the bombardment of 232Th by 122 MeV 18O ions (AR69E, AR70D) and in the 3 GeV proton bombardment of Au (RA70). See also (ZE60A, PO68B, BU71E

  12. Intermolecular C?H bond activation of benzene and pyridines by a vanadium(III) alkylidene including a stepwise conversion of benzene to a vanadium-benzyne complex

    SciTech Connect (OSTI)

    Andino, Jos G.; Kilgore, Uriah J.; Pink, Maren; Ozarowski, Andrew; Krzystek, J.; Telser, Joshua; Baik, Mu-Hyun; Mindiola, Daniel J.

    2012-01-20

    Breaking of the carbon-hydrogen bond of benzene and pyridine is observed with (PNP)V(CH{sub 2}tBu){sub 2} (1), and in the case of benzene, the formation of an intermediate benzyne complex (C) is proposed, and indirect proof of its intermediacy is provided by identification of (PNP)VO({eta}{sup 2}-C{sub 6}H{sub 4}) in combination with DFT calculations.

  13. Radioisotope thermoelectric generator transportation system safety analysis report for packaging. Volumes 1 and 2

    SciTech Connect (OSTI)

    Ferrell, P.C.

    1996-04-18

    This SARP describes the RTG Transportation System Package, a Type B(U) packaging system that is used to transport an RTG or similar payload. The payload, which is included in this SARP, is a generic, enveloping payload that specifically encompasses the General Purpose Heat Source (GPHS) RTG payload. The package consists of two independent containment systems mounted on a shock isolation transport skid and transported within an exclusive-use trailer.

  14. BandelierDirections2011

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a r k i n g M E R G E T o T o w n s it e D ia m o n d D ri v e To Sa n ta Fe T o J e m e z M ts . Co mm ut er Bu s Dr op Of f P a r k i n g M E R G E M E R G E T o T o w n s i t e...

  15. Hydro-Pac Inc., A High Pressure Company | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hydro-Pac Inc., A High Pressure Company Hydro-Pac Inc., A High Pressure Company This presentation was given at the DOE Hydrogen Compression, Storage, and Dispensing Workshop in March 2013. PDF icon csd_workshop_6_siefert.pdf More Documents & Publications 2013 Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Final Report Haskel/BuTech/PPI Hydrogen Transmission and Distribution Workshop

  16. Class 1 Permit Modification Notification

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Bu il ding 1 Santa Fe, New Mexico 87505-6303 JUL 0 5 2011 Subject: Notification of a Class 1 Permit Modification to the Hazardous Waste Facility Permit, Permit Number: NM4890139088-TSDF Dear Mr. Kieling : Enclosed is a Class 1 Permit Modification Notification 1 0: * Update Emergency Coordinator list We certify under penalty of law that this document and the enclosure were prepared under our direction or supervision in

  17. Mr. John E. Kieling, Bureau Chief Hazardous Waste Bureau

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Resource Protection Division New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, NM 87508-6303 New Mexico Environment Department Harold Runnels Bu ildi ng 1190 Saint Francis Drive, PO Box 5496 Santa Fe, NM 87502-5469 Subject: Fifth Supplement to the Report of Implementation of the Waste Isolation Pilot Plant Facility Resource Conservation and Recovery Act Contingency Plan on April 11, 2014 Dear Mr. Kieling and Ms. Roberts: On April11 , 2014, the Department of

  18. The Role of Additive in Diketopyrrolopyrrole-based Small Molecular Bulk

    Office of Scientific and Technical Information (OSTI)

    Heterojunction Solar Cells (Journal Article) | SciTech Connect Journal Article: The Role of Additive in Diketopyrrolopyrrole-based Small Molecular Bulk Heterojunction Solar Cells Citation Details In-Document Search Title: The Role of Additive in Diketopyrrolopyrrole-based Small Molecular Bulk Heterojunction Solar Cells Authors: Wang, Hongyu ; Liu, Feng ; Bu, Laju ; Gao, Jun ; Wang, Cheng ; Wei, Wei ; Russell, Thomas P. Publication Date: 2013-08-29 OSTI Identifier: 1160446 DOE Contract

  19. Nuclear Data Sheets for A = 68

    SciTech Connect (OSTI)

    McCutchan, E. A.

    2012-07-01

    The experimental results from the various reaction and radioactive decay studies leading to nuclides in the A = 68 mass chain have been reviewed. Nuclides ranging from Cr (Z = 24) to Br (Z = 35) are included. For these nuclei, level and decay schemes, as well as tables of nuclear properties, are given. This work supersedes the previous evaluation of the data on these nuclides (2002Bu29).

  20. Microsoft PowerPoint - Lin_2014_CNMS_UserScienceHighlight_NatNano.pptx [Read-Only]

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    show the fabrication of flexible metallic nanowires and their Y-junction structures from a semiconducting transition-metal dichalcogenide (TMDC) monolayer via electron irradiation in an aberration-corrected scanning transmission electron microscope. Bu using a combination of in- situ experiments and theoretical calculations, we were able to characterize the electrical properties and mechanical flexibility of the nanowires. TMDC materials have been considered as promising candidates for next

  1. Everest Refrigeration: Proposed Penalty (2015-SE-42001) | Department of

    Office of Environmental Management (EM)

    Energy Proposed Penalty (2015-SE-42001) Everest Refrigeration: Proposed Penalty (2015-SE-42001) June 3, 2015 DOE alleged in a Notice of Proposed Civil Penalty that Bu Sung America Corporation (dba Everest Refrigeration) manufactured and distributed noncompliant commercial refrigeration equipment model ESGR3 in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation

  2. MEMORANDUM TO: FILE DATE

    Office of Legacy Management (LM)

    -.. 37qg: MEMORANDUM TO: FILE DATE =b-- FROM: ---L- _------__ u . SUBJECT: SITE ACl= ALTERNATE NAME: -_______-~-----------------NA~E:__( CITY:--~---------_-STATE:-~~ (2 OWNE!sI_SL f Past- L&cl= w ------------------- ----- Current- w buL.r - ------------ ownq cm-ltacted 0 yes @ "no; if yes, data cnntacte TYPE OF OPERATION -------------_~-~ q Research & Development 0 Production %.cale testing 0 Pilot Scale 0 Bench Scale Process 0 Theoretical Studies 0 Sample 84 Analysis 0 Production

  3. S?. LL-UIIS WLLM

    Office of Legacy Management (LM)

    No. 31 12/!1/87 IEmN wffi WE ST. Lulls m ST. cows awv m S?. LL-UIIS WLLM ftl M NV 9 HIC ltRElWXDwIDloIC6IC~ WVCf ., sm. m buTm1Iv IJm-n Fww. DECMPIISSI~ 1NltEEhU 1"O'S. llE SITEHGSS IKUKDtR6XNWi'. sllErimhtED1omDFMl rnlR!E mrm

  4. Extractant composition including crown ether and calixarene extractants

    DOE Patents [OSTI]

    Meikrantz, David H.; Todd, Terry A.; Riddle, Catherine L.; Law, Jack D.; Peterman, Dean R.; Mincher, Bruce J.; McGrath, Christopher A.; Baker, John D.

    2009-04-28

    An extractant composition comprising a mixed extractant solvent consisting of calix[4] arene-bis-(tert-octylbenzo)-crown-6 ("BOBCalixC6"), 4',4',(5')-di-(t-butyldicyclo-hexano)-18-crown-6 ("DtBu18C6"), and at least one modifier dissolved in a diluent. The DtBu18C6 may be present at from approximately 0.01M to approximately 0.4M, such as at from approximately 0.086 M to approximately 0.108 M. The modifier may be 1-(2,2,3,3-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol ("Cs-7SB") and may be present at from approximately 0.01M to approximately 0.8M. In one embodiment, the mixed extractant solvent includes approximately 0.15M DtBu18C6, approximately 0.007M BOBCalixC6, and approximately 0.75M Cs-7SB modifier dissolved in an isoparaffinic hydrocarbon diluent. The extractant composition further comprises an aqueous phase. The mixed extractant solvent may be used to remove cesium and strontium from the aqueous phase.

  5. Cesium and strontium extraction using a mixed extractant solvent including crown ether and calixarene extractants

    DOE Patents [OSTI]

    Meikrantz, David H.; Todd, Terry A.; Riddle, Catherine L.; Law, Jack D.; Peterman, Dean R.; Mincher, Bruce J.; McGrath, Christopher A.; Baker, John D.

    2007-11-06

    A mixed extractant solvent including calix[4]arene-bis-(tert-octylbenzo)-crown-6 ("BOBCalixC6"), 4',4',(5')-di-(t-butyldicyclo-hexano)-18-crown-6 ("DtBu18C6"), and at least one modifier dissolved in a diluent. The mixed extractant solvent may be used to remove cesium and strontium from an acidic solution. The DtBu18C6 may be present from approximately 0.01 M to approximately 0.4M, such as from approximately 0.086 M to approximately 0.108 M. The modifier may be 1-(2,2,3,3-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol ("Cs-7SB") and may be present from approximately 0.01M to approximately 0.8M. In one embodiment, the mixed extractant solvent includes approximately 0.15M DtBu18C6, approximately 0.007M BOBCalixC6, and approximately 0.75M Cs-7SB modifier dissolved in an isoparaffinic hydrocarbon diluent. The mixed extractant solvent may form an organic phase in an extraction system that also includes an aqueous phase. Methods of extracting cesium and strontium as well as strontium alone are also disclosed.

  6. Spin and orbital ordering in Y1-xLaxVO?

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Yan, J.-Q.; Zhou, J.-S.; Cheng, J. G.; Goodenough, J. B.; Ren, Y.; Llobet, A.; McQueeney, R. J.

    2011-12-02

    The spin and orbital ordering in Y1-xLaxVO? (0.30 ? x ? 1.0) has been studied to map out the phase diagram over the whole doping range 0 ? x ? 1. The phase diagram is compared with that for RVO? (R = rare earth or Y) perovskites without A-site variance. For x > 0.20, no long-range orbital ordering was observed above the magnetic ordering temperature TN; the magnetic order is accompanied by a lattice anomaly at a Tt ? TN as in LaVO?. The magnetic ordering below Tt ? TN is G type in the compositional range 0.20 ? xmore? 0.40 and C type in the range 0.738 ? x ? 1.0. Magnetization and neutron powder diffraction measurements point to the coexistence below TN of the two magnetic phases in the compositional range 0.4 N less

  7. Precise measurement of the top quark mass in dilepton decays using optimized neutrino weighting

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abazov, Victor Mukhamedovich

    2015-11-11

    We measure the top quark mass in dilepton final states of tt¯ events in pp¯ collisions at √s= 1.96 TeV, using data corresponding to an integrated luminosity of 9.7 fb-1 at the Fermilab Tevatron Collider. The analysis features a comprehensive optimization of the neutrino weighting method to minimize the statistical uncertainties. Furthermore, we improve the calibration of jet energies using the calibration determined in tt¯ → lepton + jets events, which reduces the otherwise limiting systematic uncertainty from the jet energy scale. As a result, the measured top quark mass is mt = 173.32±1.36(stat)±0.85(syst) GeV.

  8. Boltzmann equation solver adapted to emergent chemical non-equilibrium

    SciTech Connect (OSTI)

    Birrell, Jeremiah; Wilkening, Jon; Rafelski, Johann

    2015-01-15

    We present a novel method to solve the spatially homogeneous and isotropic relativistic Boltzmann equation. We employ a basis set of orthogonal polynomials dynamically adapted to allow for emergence of chemical non-equilibrium. Two time dependent parameters characterize the set of orthogonal polynomials, the effective temperature T(t) and phase space occupation factor ?(t). In this first paper we address (effectively) massless fermions and derive dynamical equations for T(t) and ?(t) such that the zeroth order term of the basis alone captures the particle number density and energy density of each particle distribution. We validate our method and illustrate the reduced computational cost and the ability to easily represent final state chemical non-equilibrium by studying a model problem that is motivated by the physics of the neutrino freeze-out processes in the early Universe, where the essential physical characteristics include reheating from another disappearing particle component (e{sup }-annihilation)

  9. Mechanism of the metallic metamaterials coupled to the gain material

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Huang, Zhixiang; Droulias, Sotiris; Koschny, Thomas; Soukoulis, Costas M.

    2014-10-11

    We present evidence of strong coupling between the gain material and the metallic metamaterials. It is of vital importance to understand the mechanism of the coupling of metamaterials with the gain medium. Using a four-level gain system, the numerical pump-probe experiments are performed in several configurations (splitring resonators (SRRs), inverse SRRs and fishnets) of metamaterials, demonstrating reduction of the resonator damping in all cases and hence the possibility for loss compensation. We find that the differential transmittance ?T/T can be negative in different SRR configurations, such as SRRs on the top of the gain substrate, gain in the SRR gapmoreand gain covering the SRR structure, while in the fishnet metamaterial with gain ?T/T is positive.less

  10. Mechanism of the metallic metamaterials coupled to the gain material

    SciTech Connect (OSTI)

    Huang, Zhixiang; Droulias, Sotiris; Koschny, Thomas; Soukoulis, Costas M.

    2014-10-11

    We present evidence of strong coupling between the gain material and the metallic metamaterials. It is of vital importance to understand the mechanism of the coupling of metamaterials with the gain medium. Using a four-level gain system, the numerical pump-probe experiments are performed in several configurations (splitring resonators (SRRs), inverse SRRs and fishnets) of metamaterials, demonstrating reduction of the resonator damping in all cases and hence the possibility for loss compensation. We find that the differential transmittance ?T/T can be negative in different SRR configurations, such as SRRs on the top of the gain substrate, gain in the SRR gap and gain covering the SRR structure, while in the fishnet metamaterial with gain ?T/T is positive.

  11. Strong Electroweak Symmetry Breaking and Spin-0 Resonances

    SciTech Connect (OSTI)

    Evans, Jared; Luty, Markus A.

    2009-09-04

    We argue that theories of the strong electroweak symmetry breaking sector necessarily contain new spin 0 states at the TeV scale in the tt and tb/bt channels, even if the third generation quarks are not composite at the TeV scale. These states couple sufficiently strongly to third generation quarks to have significant production at LHC via gg->phi{sup 0} or gb->tphi{sup -}. The existence of narrow resonances in QCD suggests that the strong electroweak breaking sector contains narrow resonances that decay to tt or tb/bt, with potentially significant branching fractions to 3 or more longitudinal W and Z bosons. These may give new 'smoking gun' signals of strong electroweak symmetry breaking.

  12. Color sextet scalars at the CERN Large Hadron Collider

    SciTech Connect (OSTI)

    Chen, C.-R.; Klemm, William; Rentala, Vikram; Wang Kai

    2009-03-01

    Taking a phenomenological approach, we study a color sextet scalar at the LHC. We focus on the QCD production of a color sextet pair {phi}{sub 6}{phi}{sub 6} through gg fusion and qq annihilation. Its unique coupling to {psi}{sup c}{psi} allows the color sextet scalar to decay into same-sign diquark states, such as {phi}{sub 6}{yields}tt/tt*. We propose a new reconstruction in the multijet plus same-sign dilepton with missing transverse energy samples (bb+l{sup {+-}}l{sup {+-}}+Ee{sub T}+Nj, N{>=}6) to search for on-shell tttt final states from sextet scalar pair production. Thanks to the large QCD production, the search covers the sextet mass range up to 1 TeV for 100 fb{sup -1} integrated luminosity.

  13. Title

    National Nuclear Security Administration (NNSA)

    Hour of Day MST. Graph ni-21. Daily March of Wind Speed, 7-Year Averages (1961-1967), August -a o a) T3 0! 2 a; 54 I I I I I 1 I I I I I f I I I i I I I I I I I I I i i i i i i i i i i *a 0) O "H 01 ao aj SH 0) 9 12 15 Hour of Day MST 18 21 24 Graph 111-22. Daily March of Wind Speed, 7-Year Averages (1961-1967), September 55 S-J20 TlrTT-tTTTtTT '^m T3 <U (V & 0) cd <u Graph 111-23. Daily March of Wind Speed, 7-Year Averages (1981-1967), October 56 I i i i i i i 12 15 18 21 24

  14. Title

    National Nuclear Security Administration (NNSA)

    D bo a 10 12 15 18 21 24 Hour of Day MST Graph HI-20. Daily March of Wind Speed, 7-Year Averages (1 961-1967), July 53 Hour of Day MST. Graph ni-21. Daily March of Wind Speed, 7-Year Averages (1961-1967), August -a o a) T3 0! 2 a; 54 I I I I I 1 I I I I I f I I I i I I I I I I I I I i i i i i i i i i i *a 0) O "H 01 ao aj SH 0) 9 12 15 Hour of Day MST 18 21 24 Graph 111-22. Daily March of Wind Speed, 7-Year Averages (1961-1967), September 55 S-J20 TlrTT-tTTTtTT '^m T3 <U (V & 0) cd

  15. Analysis of Hydraulic Responses from the ER-6-1 Multiple-Well Aquifer Test, Yucca Flat FY 2004 Testing Program, Nevada Test Site, Nye County, Nevada, Rev. No.: 0

    SciTech Connect (OSTI)

    Greg Ruskauff

    2005-06-01

    This report documents the interpretation and analysis of the hydraulic data collected for the Fiscal Year (FY) 2004 Multiple-Well Aquifer Test-Tracer Test (MWAT-TT) conducted at the ER-6-1 Well Cluster in Yucca Flat Corrective Action Unit (CAU) 97, on the Nevada Test Site (NTS). The MWAT-TT was performed to investigate CAU-scale groundwater flow and transport processes related to the transport of radionuclides from sources on the NTS through the Lower Carbonate Aquifer (LCA) Hydrostratigraphic Unit (HSU). The ER-6-1 MWAT-TT was planned and executed by contractor participants for the Underground Test Area (UGTA) Project of the Environmental Restoration (ER) program of the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO). Participants included Stoller-Navarro Joint Venture (SNJV), the Environmental Engineering Services Contractor; Bechtel Nevada (BN); the Desert Research Institute (DRI); Los Alamos National Laboratory; and the University of Nevada, Las Vegas-Harry Reid Center. The SNJV team consists of the S.M. Stoller Corporation, Navarro Research and Engineering, Battelle Memorial Institute, INTERA Inc., and Weston Solutions, Inc. The MWAT-TT was implemented according to the ''Underground Test Area Project, ER-6-1 Multi-Well Aquifer Test - Tracer Test Plan'' (SNJV, 2004a) issued in April 2004. The objective of the aquifer test was to determine flow processes and local hydraulic properties for the LCA through long-term constant-rate pumping at the well cluster. This objective was to be achieved in conjunction with detailed sampling of the composite tracer breakthrough at the pumping well, as well as with depth-specific sampling and logging at multiple wells, to provide information for the depth-discrete analysis of formation hydraulic properties, particularly with regard to fracture properties.

  16. SAND78-0962 VOL 2

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dllpartment of Energy by Sandia Corporation. NOTICE This report was prepared as an account of work sponsored by tt'le United States Government. Neither the United States nor the Department of Energy, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product or procass disclosed, or

  17. Short-Term Energy Outlook

    Gasoline and Diesel Fuel Update (EIA)

    (83/3Q) Short-Term Energy Outlook iuarterly Projections August 1983 Energy Information Administration Washington, D.C. 20585 t rt jrt- .ort- iort- iort- iort- nort- lort- '.ort- ort- Tt- .-m .erm -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term Term .-Term -Term xrm Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy -OJ.UUK Outlook Outlook Outlook Outlook Outlook Outlook

  18. PURADYN Oil Bypass Filtration System Evaluation Test Plan

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technologies & Infrastructure Department PURADYN OIL BYPASS FILTRATION SYSTEM EVALUATION TEST PLAN October 2002 Reviewed: INEEL Fleet Maintenance Supervisor (Thomas) Date Reviewed: INEEL Bus & Heavy Equipment Foreman (Murdock) Date Reviewed: INEEL Fleet Maintenance Department Manager (Bullock) Date Approved: INEEL Central/Idaho Falls Facilities Director (Winn) Date Reviewed: INEEL Test Engineer (Zirker) Date Reviewed: INEEL Project Manager (Francfort) Date Approved: INEEL TT&I

  19. Till'"

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    zg-..Ttr""2t.T ? f~'***( .)'~=.~ -*pnw**-*:*** .~~., '"?""(".~, .. -.-. **r='''' Till'" a * PRIVACY IMPACT ASSESSMENT: INL ATR NSUF Users Week 2009 PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA:

  20. DOE/EIA-0202(84/1Q) Short-Term Energy Outlook Quarterly Projections

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1Q) Short-Term Energy Outlook Quarterly Projections February 1984 Published: March 1984 Energy Information Administration Washington, D.C. t rt jrt- .ort- iort- iort- .iort- iort- lort- <ort- ort Tt- .erm -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term Term Term .-Term -Term uergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook

  1. DOE/EIA-0202(84/3Q) Short-Term Energy Outlook

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3Q) Short-Term Energy Outlook pn Quarterly Projections August 1984 Published: September 1984 Energy Information Administration Washington, D.C. t- jrt .ort lort .iort .iort iort iort iort ort Tt jm .erm -Term Term Term Term Term Term Term Term Term Term Term Term Term -Term -Term nergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  2. DOE/EIA-0202(84/4Q) Short-Term Energy Outlook Quarterly Projections

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4Q) Short-Term Energy Outlook Quarterly Projections October 1984 Published: November 1984 Energy Information Administration Washington, D.C. t rt jrt .ort lort iort lort iort lort \ort ort Tt .erm Term Term Term Term Term Term Term Term Term Term Term Term Term -Term -Term xrm nergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  3. DOE/EIA-0202(85/1Q) Short-Term Energy Outlook Quarterly Projections

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1Q) Short-Term Energy Outlook Quarterly Projections January 1985 Published: February 1985 Energy Information Administration Washington, D.C. t rt jrt .ort lort lort lort nort lort *.ort ort Tt .m .erm -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term uergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook Outlook

  4. DOE/EIA-0202(85/3Q) Short-Term Energy Outlook Quarterly Projections

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3Q) Short-Term Energy Outlook Quarterly Projections July 1985 Published: August 1985 Energy Information Administration Washington, D C t rt jrt .ort lort iort iort iort iort '.ort ort Tt .-m .erm -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term -Term Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  5. DOE/EIA-0202(86/3Q) Energy Information Administration Washington, DC

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3Q) Energy Information Administration Washington, DC Energy Outlook Quarterly Projections July 1986 t rt ort .ort lort lort nort iort lort \ort ort Tt "t- . m .erm Term Term Term Term Term Term Term Term Term Term Term Term Term Term Term xrm uergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Enbrgy ^nergy -OJ.VJUK Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  6. Appendix E Technical Memorandum Regarding Instrumentation and Monitoring

    Office of Legacy Management (LM)

    15, 2010 Re: Instrumentation and Monitoring, Rocky Flats OLF Tt Project #: 114-181750 Introduction This technical memorandum provides an evaluation of data collected from inclinometers at the Rocky Flats Original Landfill (OLF) between the time they were installed in April, 2008, through December 2009. Data from piezometers located on the outside of the inclinometer casings are also reviewed and evaluated for possible correlation with the inclinometer data. Relevant background information

  7. Appendix E Technical Memorandum Regarding Instrumentation and Monitoring

    Office of Legacy Management (LM)

    22, 2011 Re: Instrumentation and Monitoring, Rocky Flats OLF Tt Project #: 114-181750 Introduction This technical memorandum provides a summary and evaluation of data collected from instrumentation at the Rocky Flats Original Landfill (OLF). Previously collected data has been updated with information collected during 2010 and January and February, 2011. Data from piezometers located on the outside of the inclinometer casings were also reviewed and evaluated for possible correlation with the

  8. Fort Collins CO 80525

    Office of Legacy Management (LM)

    3801 Automation Way Suite 100 Fort Collins CO 80525 Tel 970.223.9600 Fax 970.223.7171 www.tetratech.com Technical Memorandum To: Ms. Linda Kaiser From: Thomas A. Chapel, CPG, PE Company: S. M. Stoller Corporation Date: March 21, 2014 Re: Instrumentation and Monitoring, Rocky Flats OLF Tt Project #: 114-181750 Introduction This technical memorandum provides a summary and evaluation of data collected from inclinometer and piezometer instrumentation at the Rocky Flats Original Landfill (OLF)

  9. Microsoft Word - RFOLF Yearly Report - 2013_TAC

    Office of Legacy Management (LM)

    801 Automation Way Suite 100 Fort Collins CO 80525 Tel 970.223.9600 Fax 970.223.7171 www.tetratech.com Technical Memorandum To: Mr. Rick DiSalvo From: Lance Heyer, EI Thomas A. Chapel, PE Company: S. M. Stoller Corporation Date: March 29, 2013 Re: Instrumentation and Monitoring, Rocky Flats OLF Tt Project #: 114-181750 Introduction This technical memorandum provides a summary and evaluation of data collected from inclinometer and piezometer instrumentation at the Rocky Flats Original Landfill

  10. CP violating anomalous top-quark couplings at the LHC

    SciTech Connect (OSTI)

    Gupta, Sudhir Kumar; Mete, Alaettin Serhan; Valencia, G.

    2009-08-01

    We study the T odd correlations induced by CP violating anomalous top-quark couplings at both production and decay level in the process gg{yields}tt{yields}(b{mu}{sup +}{nu}{sub {mu}})(b{mu}{sup -}{nu}{sub {mu}}). We consider several counting asymmetries at the parton level and find the ones with the most sensitivity to each of these anomalous couplings at the LHC.

  11. ACIM-~ NY.49

    Office of Legacy Management (LM)

    ' h:. ,,, ,_" , ACIM-~ NY.49 .,. i MEMORANDUM TO: FILE DATE FE: __~-tt_c~7' e_-_~-~------- --------- "%Kf-- ---- ---i------- Current: ~~~~~~--------__---_______ xf yee, date contacted- IVPE OF OPERATION f- ------------- Research & Development 0 Production scale testing 0 Pilot Scale 0 Bench Scale Process z Theoretical Studies Sample 84 Analysis 0 Production 0 Disposal/Storage a Facility Type 0 Manufacturing 0 University 0 Research Organization 0 Government Sponsored Fat a Other

  12. MEHORANDUM TO: FILE

    Office of Legacy Management (LM)

    MEHORANDUM TO: FILE FR0t-t: -~+?!+-- SUBJECT: u - 5..7. am . . ALTERNATE W% : ---\L-&--~~+. ___- ____ S-fA-rE: t-4 ;5- ------ wJ!%RLSL " Past: ------------------------ Current: --~~---~---__~~~-------~-- Owner contacted 0 yes -glnos if yes, date cotitectad TYPE OF OPERATION ---------_----__- 0 Research & Development 0 Facility Type 0 Production scale testing 0 Pilot Scale 0 Bench Scale Process *I Theoretical Studies 0 Sample & kialysis 0 Production 0 Disposal /Storage

  13. TO: F FROH: SUBJEC

    Office of Legacy Management (LM)

    F FROH: SUBJEC :T: SITE NAME: CITY:- UWNERI -----_ Past 0Wl-N TYPE C - - - - - - 0 Rez CONTRkCTING PERIOD: /+=I s-3 -----T-- -------- -- -------------------------------------- OWNERSHIP: - - .-- !E ; e; Ip; Pj Br Tt Si IF .-- imr ,CE !ct MEMORANDUM :ILE DATE "1) 241g7 --- ---- _______~ -----_----_ G3d:w i/( ?=v;rt i D.'lr.-s:rM ALTERNATE ~----~----_---____--_________________ NAME: -0-------------_____ B&J ii m0T.e ---- -~--___~~~--~----~~ STATE: fi a ---------_-__ I3 Facility Type

  14. Microsoft PowerPoint - SustainAbilitySlideshow18Sept08.pps [Read-Only] [Compatibility Mode]

    Office of Environmental Management (EM)

    What we have seen from these Visiting Speaker Programs is an opportunity for ll b ti Th l tt di HSS Visiting Speaker Program - September 18, 2008. Washington DC collaboration. The people attending are representative of organizations investing their time and they too are struggling to solve the same issues we are ; to keep America sustainable, secure, and to foster responsible leadership. Companies have been successful preparing for and navigating this new shifting global landscape." Index

  15. Production and decays of the light pseudoscalar boson {eta} at the CERN LHC in the simplest little Higgs model

    SciTech Connect (OSTI)

    Cheung Kingman; Yan Qishu; Song, Jeonghyeon; Tseng Poyan

    2008-09-01

    In many extensions of the standard model, the Higgs sector often contains an additional pseudoscalar boson. A good example is the SU(3) simplest little Higgs model, which accommodates a light pseudoscalar boson {eta} with quite different characteristics from those in other multi-Higgs-doublet models. We study various phenomenological signatures of the {eta} at the CERN LHC. In particular, we calculate in details both production and decays in the Drell-Yan type channel qq{yields}Z/Z{sup '}{yields}h{eta}, and in the associated production with a tt pair, gg(qq){yields}tt{eta}. We emphasize the {tau}{sup +}{tau}{sup -} decay mode of the {eta} boson when its mass is below the bb threshold. We show that tt{eta} production is in fact large enough to give a sizable number of events while suppressing the backgrounds. We also comment on the direct gluon fusion process and the indirect decay from the heavy T quark (T{yields}t{eta})

  16. Controlled Synthesis of Polyenes by Catalytic Methods. Progress Report, December 1, 1989 -- November 30, 1992

    DOE R&D Accomplishments [OSTI]

    Schrock, R. R.

    1992-01-01

    A more direct approach to polyenes by the direct polymerization of acetylenes has been achieved. We were able to show that polymerization of acetylene itself can be controlled with a well- characterized alkylidene catalyst, but only if a base such as quinuclidine is present in order to slow down the rate of propagation relative to initiation. (Quinuclidine may also stabilize vinylalkylidene intermediates formed in the reaction). Unfortunately, living polyenes were no more stable than isolated polyenes, and so this approach had its limitations. Direct polymerization of acetylene by Mo(CH-t-Bu)(NAr)(O-t-Bu){sub 2} was more successful, but inherent polyene instability was still a problem. The most important result of the past grant period is the finding that dipropargyl derivatives (HC=CCH{sub 2}XCH{sub 2}C=CH; X = CH{sub 2}, C(CO{sub 2}R){sub 2}, SiR{sub 2}, etc.), which have been reported to be cyclopolymerized by various classical catalysts by as yet unknown mechanisms, are polymerized by Mo(CH-t-Bu)(NAr)[OCMe(CF{sub 3}){sub 2}]{sub 2} in dimethoxyethane. We speculate that intramolecular formation of a five-membered ring in the product of {alpha} addition is fast enough to yield another terminal alkylidene on the time scale of the polymerization reaction, while a six-membered ring is formed in a reaction involving a more reaction terminal alkylidene. Either intermediate alkylidene, but most likely the terminal alkylidene, could react with additional monomer to lead to growth of a chain having dangling triple bonds that eventually could be employed to form crosslinks.

  17. HIGH PRESSURE COAL COMBUSTION KINETICS PROJECT

    SciTech Connect (OSTI)

    Chris Guenther, Ph.D.

    2003-01-28

    SRI has completed the NBFZ test program, made modification to the experimental furnace for the HPBO test. The NBFZ datasets provide the information NEA needs to simulate the combustion and fuel-N conversion with detailed chemical reaction mechanisms. BU has determined a linear swell of 1.55 corresponding to a volumetric increase of a factor of 3.7 and a decrease in char density by the same factor. These results are highly significant, and indicate significantly faster burnout at elevated pressure due to the low char density and large diameter.

  18. 18Ne

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ne β+-Decay Evaluated Data Measurements 1954GO17: 18Ne. 1961BU05: 18Ne; measured not abstracted; deduced nuclear properties. 1961EC02: 18Ne; measured not abstracted; deduced nuclear properties. 1963FR10: 18Ne; measured not abstracted; deduced nuclear properties. 1965FR09: 18Ne; measured not abstracted; deduced nuclear properties. 1968GO05: 18Ne; measured Eγ, Iγ; deduced Iβ, log ft. 18F deduced levels, branching ratios. 1970AL11: 18Ne; measured T1/2; deduced log ft, β-branching. 1970AS06,

  19. A=9C (1984AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4AJ01) (See the Isobar Diagram for 9C) GENERAL: (See also (1979AJ01) for other references in this category and for some reactions on which no new work has been done.) and Table 9.12 [Table of Energy Levels] (in PDF or PS) here. Model calculations: (1979LA06). Complex reactions involving 9C: (1981MO20). Reactions involing pions: (1979AS01, 1979NA1E, 1980BU15, 1983HU02). Other topics: (1979BE1H, 1979LA06, 1982NG01). Mass of 9C: The recent Q0 value for the 12C(3He, 6He)9C reaction (see reaction 3)

  20. BIG RU N INDIANA LAKESHORE RUN E LUMBER CIT Y WARSAW JOHNST

    Gasoline and Diesel Fuel Update (EIA)

    RU N INDIANA LAKESHORE RUN E LUMBER CIT Y WARSAW JOHNST OWN BU RNSIDE MILLSTONE FROSTBUR G JUN EAU PLU MVILLE CHERRY HILL KAN E BOSWELL MAR ION CENT ER CREEKSIDE SALTSBUR G POINT N BLAIR SVILL E COU NCIL RU N SIGEL LEWISVILLE BEAR C REEK AR MBRUST OHIOPYLE HALLT ON BR OOKVILLE MAR KTON NOL O RAT HMEL COR SICA MAR CHAND SMIC KSBU RG HOWE APOLLO SEVEN SPRIN GS YAT ESBORO MCNEES LUCIND A GEORGE PIN EY LEEPER TIMBLIN WILL ET FERGUSON CLIMAX PANIC DAVY HILL TIDIOUT E GRAMPIAN SLIGO ROC KVI LLE

  1. QER- Comment of Mike Gray

    Broader source: Energy.gov [DOE]

    The biggest issue with wind energy in ND is the Transmission System. There was a proposal recently by Clean Line Energy This type of forward thinking would allow wind energy to go forward.... The other huge issue is the blockade that the fossil fuel industry has placed on Master Limited Partnerships in 1978!! If the Master Limited Partner Parity Act is passed THAT WOULD BE A GAME CHANGER!! ( this is sponsored bu Senator Coons From DE) Call me directly..... You can also aske Heidi Heitkamp about me.... Mike Gray

  2. Highly efficient greenish-blue platinum-based phosphorescent organic light-emitting diodes on a high triplet energy platform

    SciTech Connect (OSTI)

    Chang, Y. L. Gong, S. White, R.; Lu, Z. H.; Wang, X.; Wang, S.; Yang, C.

    2014-04-28

    We have demonstrated high-efficiency greenish-blue phosphorescent organic light-emitting diodes (PHOLEDs) based on a dimesitylboryl-functionalized C^N chelate Pt(II) phosphor, Pt(m-Bptrz)(t-Bu-pytrz-Me). Using a high triplet energy platform and optimized double emissive zone device architecture results in greenish-blue PHOLEDs that exhibit an external quantum efficiency of 24.0% and a power efficiency of 55.8?lm/W. This record high performance is comparable with that of the state-of-the-art Ir-based sky-blue organic light-emitting diodes.

  3. Carlsbad Field Office P. O. Box 3090 Carlsbad

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    W aste Bu reau New Mexico Environment Department 2905 Rodeo Park Drive East, Buitding 1 San ta Fe. New Mexico 87505-6303 FEB 1 3 20j~ Subject: Notification of Cla ss 1 Permit Modification to the Hazardous Waste Facility Permit, Number: NM4890139088-TSDF De ar Mr. Kieling : Enclosed is the Class 1 Permit Modification Notification listed below: * Change in th e Department of Energy, Carlsbad Field Office Manager We certify under penalty of law that this document and th e enclos ure were prepared

  4. LAKESHORE AVON BR ANT-EDEN ALD EN-LANC ASTER AU BURN W SH ELDON

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    81 § ¨ ¦ 81 LAKESHORE AVON BR ANT-EDEN ALD EN-LANC ASTER AU BURN W SH ELDON CALEDONIA HURON C REEK LEIC EST ER COL DEN ASH FORD INDIAN FALLS LAWTONS SAR DINIA RPD-037 -2 GLENWOOD PU LASKI PAVILION CON CORD COL LINS N ELM A ORC HARD PARK-H AMBU RG DANLEY CORNERS ST ILLWAT ER CHAFF EE-ARCAD E FAYETT E-WATERLOO LAKEVIEW JAVA SEN EC A W ELLER Y AU RORA E ZOAR BU FFALO TIOGA SILVER LAKE AKR ON ROM E RAT HBON E ALM A BET HANY WYOMING ULYSSES BR ANCH W SAN DY CREEK COL LINS BLOOMFIELD E LEBANON

  5. Vacuum Insulation for Window

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    3M#Pres(ge#70# 3M#Pres(ge#90# Glass# on Vacuum I nsula4on for W indow 201 Bu uildin Te echnologie Offi ffic Pe ee Rev vie Pictures of NREL's transparent vacuum insulation for windows. The pictures show that the evacuated components are transparent while providing superior insulation in a flexible structure that can be retrofitted to installed windows. Image of vacuum capsules low-e coated films and glass, after multiple sprayed layers. Lin Simpson, lin.simpson@nrel.gov Na4ona Ren newabl En nerg

  6. Venture Capital Finance

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Venture Capital Finance DOE Biomass Conference July 2014 Priced Out of Oil ... Into What? Energy Source Commodity Price Sun: $0 / GJ Oil (6.2 GJ/bbl) $10/bbl = $1.6 / GJ (late 1990s) Coal: $3 - 6 / GJ Natural Gas (N America) $3 - 4 / GJ Biomass (15 GJ/dt) $60-100/dt = $4 - 6 / GJ Natural Gas (ex N America) $10 - 15 / GJ Oil (6.2 GJ/bbl) $100/bbl = $16 / GJ Corn $4-7/bu= $10 - 20 / GJ 2 * Higher oil prices create a disruptive opportunity for lower cost feedstocks * North American shale gas is a

  7. SUBJIHX:

    Office of Legacy Management (LM)

    : SUBJIHX: ?%w P ~.~i~~~~~ I' - 6*:&b d-h tQ @ i -" i" 1 s..?F?ew% ,~~~.~~~~,~ ,l Aesisrtmxt ?Xrarctmr for DATE Jitx;;r 6, I.955 l' lmPmfiQn, mv3.sion of R&w Materials 060. G, Marvin, Qirsctor for PrfXess Developnsnt 4: :.- p, J. Picario, stz.uction and n - f',_' h j::... ; Supply Branch, Division of Raw Materials -T 17 -L, 3c &j 0 DATA BE RESTORATION, ABANJIONMENT OR SELLING BU%3ING AND CERTAIN . " L) CURRIES ON FBCPEB'E OFU. S. PHOSPHO~C PRCDUCTS, EAST TAMPA, --

  8. TO. TO. , W. B; Harris, Chief, Industrial Hygiene'Branch DA , W. B; Harris, Chief, Industrial Hygiene'Branch DA

    Office of Legacy Management (LM)

    ~~~~;.Offi~~~~~~~~~~~ ,/-; l UNITED STh , :__ .~. :__ .~. , , TO. TO. , W. B; Harris, Chief, Industrial Hygiene'Branch DA , W. B; Harris, Chief, Industrial Hygiene'Branch DA Health and Safet Division pa& 1 Ps B.- Klevin :mL -y!yG hMBOL: HSH:PBK hMBOL: HSH:PBK : 1. Purpose of Visit >.. a. To study operations planned by~Bu.reau of Ea: factors for Be, II, thorium, zirconium, etc, i b. ,'To explain to Bureauof Mines' personnel tl in handling any of the aforementioned mate] 2. Scope of Work

  9. L AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

    National Nuclear Security Administration (NNSA)

    L _ AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 25 7 See Block 16C 6 . 1SSUED BY CODE 0500 8 NNSA/ Oa kridge Site Office u.s. De pa rtment of Energ y NNSA/ Y-12 S it e Offic e P. O. Box 2 05 0 Bu ilding 97 0 4- 2 Oak Ridge TN 37831 8 . NAME AND ADDRESS OF CONTRACTOR (No., street, county. state and ZIP Code) ABCOCK & WILCOX TECHNICAL B A t t n: W ILLIE J. W I LSON PO BOX 2009 SERVICES Y- 12 , LLC ,1 . CONTRACT ID CODE I PAGE OF PAGES 1 I

  10. Erratum to: Measurement of jet multiplicity distributions in $$\\mathrm {t}\\overline{\\mathrm {t}}$$ production in pp collisions at $$\\sqrt{s} = 7\\,\\text {TeV} $$

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chatrchyan, Serguei

    2015-05-19

    Table 4 was incorrectly captioned in the originally published version. The correct caption is ‘Normalised differential tt- production cross section as a function of the number of additional jets with pT > 30 GeV in the lepton+jets channel. Furthermore, the statistical, systematic, and total uncertainties are also shown. Finally, the main experimental and model systematic uncertainties are displayed: JES and the combination of renormalisation and factorisation scales, jet-parton matching threshold, and hadronisation (in the table “Q2/Match./Had.”)’.

  11. CP violating anomalous top-quark coupling in p$\\bar{p}$ collision at $\\sqrt{s}=1.96$ TeV

    SciTech Connect (OSTI)

    Lee, Sehwook; /Iowa State U.

    2011-04-01

    We conduct the first study of the T-odd correlations in tt events produced in p{bar p} collision at the Fermilab Tevatron collider that can be used to search for CP violation. We select events which have lepton+jets final states to identify t{bar t} events and measure counting asymmetries of several physics observables. Based on the result, we search the top quark anomalous couplings at the production vertex at the Tevatron. In addition, Geant4 development, photon identification, the discrimination of a single photon and a photon doublet from {pi}{sup 0} decay are discussed in this thesis.

  12. Sandia National Laboratories Supplier Quality Requirements for Build to

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Supplier Quality Requirements for Build to Print Hardware Purchases Subject: First Release:SNL-5-2002, Issue A, 05/16/02 Revised this 18th day'ofNovember, 2004 as F-42(QP-28)04* . Revised By: 11)' I(.~ 't:t' AntOnIO J. ~ora, 14133 14133 Manager ~ c-. m I ~~ <.:-, lL 10252 Manager? \"\\_- - II - 2.3 - 0 'i ~e~7 1 025 8 Manager$::~ R (/.tff7 J Frank A. Villareal Approved By: * The revision of the document in effect at tlte tinre of award of Purchase Order of Subcontract unless otherwise

  13. Large Higgs energy region in Higgs associated top pair production at the

    Office of Scientific and Technical Information (OSTI)

    Linear Collider (Journal Article) | SciTech Connect Large Higgs energy region in Higgs associated top pair production at the Linear Collider Citation Details In-Document Search Title: Large Higgs energy region in Higgs associated top pair production at the Linear Collider The process e{sup +}e{sup -}{yields}ttH is considered in the kinematic end point region where the Higgs energy is close to its maximal energy. In perturbative QCD, using the loop expansion, the amplitudes are plagued by

  14. Recent Results in the Top Quark Sector from the D0 Experiment (Conference)

    Office of Scientific and Technical Information (OSTI)

    | SciTech Connect Conference: Recent Results in the Top Quark Sector from the D0 Experiment Citation Details In-Document Search Title: Recent Results in the Top Quark Sector from the D0 Experiment In these proceedings, I review recent measurements in the top quark sector in pp-bar collisions at a centre-of-mass energy of √s = 1.96 TeV in Run II of the Fermilab Tevatron Collider using the D0 detector. I will present the differential measurement of the tt-bar production cross section and the

  15. DOBEIA-0202(83/4Q) Short-Term Energy Outlook Quarterly Projections

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DOBEIA-0202(83/4Q) Short-Term Energy Outlook Quarterly Projections November 1983 Energy Information Administration Washington, D.C. t rt jrt .ort lort .lort lort lort lort <.ort ort Tt- .-m .erm -Term -Term Term Term Term Term Term Term Term Term Term Term Term Term Term Nrm ,iergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  16. DOE/EIA-0202(85/4Q) Short-Term Energy Outlook OBIS Quarterly

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    5/4Q) Short-Term Energy Outlook OBIS Quarterly Projections October 1985 Energy Information Administration Washington, D C t rt jrt .ort lort .iort aort iort iort <.ort ort Tt .-m .erm Term Term Term Term Term Term Term Term Term Term Term Term Term -Term -Term xrm uergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  17. DOE/EIA-0202(87/2Q) Energy Information Administration Short-Term

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2Q) Energy Information Administration Short-Term Energy Outlook Quarterly Projections April 1987 . m erm Term t-Term rt-Term jrt-Term ort-Term iort-Term ion-Term ion-Term lort-Term lort-Term ort-Term ort-Term Tt-Term ".-Term -Term Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  18. DOE/EIA-0202|83/2Q)-1 Short-Term Energy Outlook

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    |83/2Q)-1 Short-Term Energy Outlook Volume 1-Quarterly Projections May 1983 Energy Information Administration Washington, D.C. t rt jrt .ort lort iort iort lOrt iort '.ort- ort Tt . m .erm Term Term Term Term Term Term Term Term Term Term Term Term Term -Term -Term nergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy ^nergy Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  19. Eectronia

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Eectronia nIetl*c i na lSi*s) 0 ransienlt otrces =.ue to) .)I*sru ted Parsia Currents onl tie leR hit \ ocu es J.D. Kotulski, R.S. Coats, M.F. Pasik Electromalgnetic anHd Plalsmal Physics Anallysis DepalrtmenIt SanYdial Nationacl Lalboraltories Albuquerque, NM87185 USA Abstract- This papelr desclribes the electlromagnuetic anaalysis that has beena completed usinag the OPERA-3d product I;o charact;erize TT. ELECTROMAGNETIC MODELING the folrces ona the ITE1R shield modules as palrt of the

  20. Statistical anisotropies in gravitational waves in solid inflation

    SciTech Connect (OSTI)

    Akhshik, Mohammad; Emami, Razieh; Firouzjahi, Hassan; Wang, Yi E-mail: emami@ipm.ir E-mail: yw366@cam.ac.uk

    2014-09-01

    Solid inflation can support a long period of anisotropic inflation. We calculate the statistical anisotropies in the scalar and tensor power spectra and their cross-correlation in anisotropic solid inflation. The tensor-scalar cross-correlation can either be positive or negative, which impacts the statistical anisotropies of the TT and TB spectra in CMB map more significantly compared with the tensor self-correlation. The tensor power spectrum contains potentially comparable contributions from quadrupole and octopole angular patterns, which is different from the power spectra of scalar, the cross-correlation or the scalar bispectrum, where the quadrupole type statistical anisotropy dominates over octopole.

  1. Final Report for the DOE Chemical Hydrogen Storage Center of Excellence

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    FINAL R EPORT F OR T HE D OE C HEMICAL HYDROGEN S TORAGE C ENTER O F EXCELLENCE Kevin C . O tt, C enter D irector LOS A LAMOS N ATIONAL L ABORATORY PO B ox 1 663 Los A lamos, N M 8 7545 Summarizing C ontributions f rom C enter P artners: Los A lamos N ational L aboratory ( LANL) Pacific N orthwest N ational L aboratory ( PNNL) Millennium C ell, I nc. Northern A rizona U niversity Rohm a nd H aas/Dow C hemical C ompany University o f A labama University o f C alifornia, D avis University o f C

  2. Microsoft PowerPoint - 10_OGREN_ARM_AWG_IAP_200703.ppt [Compatibility Mode]

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    In-situ Aerosol Profiling (IAP) * Objectives - obtain aerosol climatology aloft - determine relevance of surface climatology to vertical column * Measurements Li ht b ti tt i d - Light absorption, scattering, and hemispheric backscattering - RH-dependence of scattering - Temperature and RH Cessna 172XP 3/2000 - 6/2005 Temperature and RH - Flask samples for trace gases (CO 2 ) * Flights - 9 levels 0 5-3 7 km asl (172XP) - 9 levels, 0.5-3.7 km asl (172XP) - 12 levels, 0.5-4.6 km asl (206) -

  3. High efficiency and brightness fluorescent organic light emitting diode by triplet-triplet fusion

    DOE Patents [OSTI]

    Forrest, Stephen; Zhang, Yifan

    2015-02-10

    A first device is provided. The first device further comprises an organic light emitting device. The organic light emitting device further comprises an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include an organic host compound and at least one organic emitting compound capable of fluorescent emission at room temperature. Various configurations are described for providing a range of current densities in which T-T fusion dominates over S-T annihilation, leading to very high efficiency fluorescent OLEDs.

  4. Appendix E Technical Memorandum Regarding Instrumentation and Monitoring

    Office of Legacy Management (LM)

    1 3801 Automation Way Suite 100 Fort Collins CO 80525 Tel 970.223.9600 Fax 970.223.7171 www.tetratech.com Technical Memorandum To: Mr. Rick DiSalvo From: Lance Heyer, EI Thomas A. Chapel, PE Company: S. M. Stoller Corporation Date: March 30, 2012 Re: Instrumentation and Monitoring, Rocky Flats OLF Tt Project #: 114-181750 Introduction This technical memorandum provides a summary and evaluation of data collected from inclinometer and piezometer instrumentation at the Rocky Flats Original Landfill

  5. I PHAEi:'I:. REM E :ACTO N

    Office of Legacy Management (LM)

    PHAEi:'I:. REM E :ACTO N *S0= =F* ltw :::.: .:- :.i.- * :: ..: ** :::::::::::::::::: I. .'Sl4.l . g .... 1/X's~~~ ::i':-:i::11:!:i':' :o::: : :::: ::::::. :. : * , :! ::: If'000;St;:ffULHS 0-;0y~Ar 0 PtS'tltl05 i; t 000; H~~i; 0 t~t < The Oak Ridge Institute for Science and Education (ORISE) was established by the U.S. Department of Energy to undertake national and international programs in science and engineering education, training and management systems, energy and environment systems, and

  6. REPLY TO AITN Of.

    Office of Legacy Management (LM)

    .. Departm&t of ' h mehloraricjum~ iii /II 1 DATE: FEB 6 1991 . ,! '!/ l!I REPLY TO AITN Of. EM-421 (W. A. Williams, FTS 233-5439) -cI: Wrnlum Cleanup Mdellnes for the Elra Gate, Tennessee, FUSRAP.Site Ill III Y0: Lester K. Ptlce, Ofrector former Sites Restoration Dlvlsion ,( III Oak Ridge Dperations Office . t/t 4 This $s in response to your request for uranium cleanup guidelines for the I 1 Elra Gate site. Vour staff recommended a cleanup guIdetIne of 35 Ill picoCurles per grm (pCi/g) of

  7. Reports

    Office of Legacy Management (LM)

    aehsed herewith ia Coaprehenaive Survey of USBEC mtp, Lewebldinge ad G~r~n&-owned Bpipment under SC & COntraCtCW'S COntrOl, as requested in AEC BULLETIN No. 48 dated April 26, 1917. .& Inols. Reports 10 acres NO. 5412 5435 5436 5421 5621 5432 5433 5434 5431 5437 Pipe Shop /j LOCATION Ij ij 88 1 / j Lske 'OntsTis Tohawanda !IS AEC Ordndnce 'Worki, Sllkffiqe ,Model wty, ,New York '8 I' j, i/ DESCRIPTION !! OF TT 'fro1 heti TX-2 fron inec s3n Die ylaed Ialst JS Eng- 1, 3x38 *ict 23, 144

  8. Departtient,of Endrgy

    Office of Legacy Management (LM)

    Departtient,of Endrgy ' . :. WaShingtm; DC 20585 ,; .' I .,~. ' . ' . / . . . .; ' ~- FEB Xl995 ., Mr..William P. Dornsife :.'. ..I Bureau'of Radiation Protectibn Pennsjlvania Department of : '~ ., .Environmental Resources, 400 Market Street, 13th Floor ,HatriSburg; ,PennsyJvania 17101' ; 1 .I Dear Hr. Dornsife: ,,'.:' ', I ; )~' ,,: I Secretary of Evergy Hazel O"Leary.has announced a new appr6ac :.the Department of En@rgy (DOE) ahd,its communications'with.tt support of'this initiative, ,we

  9. FROti:

    Office of Legacy Management (LM)

    p.1, , 1' 3 ' - j ttEMORANDUtl TO: FILE - FJ+u? /WI - /3 DATE 2 /I/ / 9 / ----------^--______ FROti: D. s-f&J ---------------- SUBJECT: SITE NAME: --_-__----__-_--- _____ &----w' I+& - f*/crq ALTERNATE A t=l r---i ted ____ NAME: -----------__-________ CITY: ~+ZZL------ _______ STATE: ------ ff+$- OWNER(S) --y;;g-- && - /??#A~ ------------------------ Current: &v CA-J--;cJ Owner contacted ~--yes 0 noi -.-------me-we------- if yes, date contacted _ //t*/4/ -e-----N------

  10. WTIOWu L LBAD COLPANY

    Office of Legacy Management (LM)

    . WTIOWu L LBAD COLPANY OP CHDo i0 7 -' Cincinnati 39, Chio September 25, 1961 SUDBJCTr TRIP RBPCRT TO tLELQO tMAClleO TOOL CCOPANY, CICiUTM , (310 ON AUIUS 21, 23. AND 23, AND SYPB3EBR 1, 8. AND 11, 1961 TOt J. A. Quigley, M.D. ORClt B. D. Leininger., A, D. orkun CENTRAL FIL EcjtTr1rr OF TrIP The purpose of this trip was to (1) observe the health and safety aspects during a simulated production ran on the LeDlond Carlstedt Rapid Doring Machine ttUle drilling solid cant uranium billets, aad (2)

  11. CI L C C I LI C

    Office of Legacy Management (LM)

    CI L C C - I LI C c C I I I I I I I L rr ORNL/RASA-94/l 0t-t. 27-6 \O [I ,-' :..L, &ml OAK RIDGE NATIONAL LABORATORY RESULTS OF THE RADIOLOGICAL SURVEY at the former HERRING-HALL-MARVIN SAFE COMPANY (3rd Floor) 1550 Grand Boulevard, Hamilton, Ohio (HOOOl) M. E. Murray C. A. Johnson MANA6ED BY MARTIN MARIETTA ENERGY SYSTEMS, INC. FOR THE UNITE0 STATES DEPARTMENT OF ENEMY This report has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office

  12. L

    Office of Legacy Management (LM)

    c. : -* :. : 1 : : ; : s ' ;: ..:, --A,, -... ! : ' Q "3 _, ' ;' ,Z .2 , ., .- -2 ' 1 ' \A ' ., 3 \ * .' >,-' ;;' ;x., -.; t 1 ' .L i ' iq. ) :p 22T*+g~;s~ .r(,, , ~~::---y-~' -' --, ) ,;*; -,:;' L;e.-:.:.: ..,. >,.*L<seT,, :' .5 -1,; JI I,' ' <> ' I. ..; -_ : ,... :,-.;i __. PRODUCTXIN PJZPORT "* *_ ' L T I R(.XJXXG OF TT~C l!ftN D X m X3AZ~IEX INGCt.fS. A T * 2lI,mG~~-LuDL~~~ sTl2zEL coRPoR:!'"I9~~- -_. . _.. ,. .: ii .- _, . :. GN Ofiicial CkuiFcr??bn. d t!+

  13. Assessment of the Electrohol process to manufacture acetaldehyde from ethanol electrogeneratively. Final report

    SciTech Connect (OSTI)

    Trevino, A.A.

    1985-04-10

    Preliminary process economics data for the electrogenerative process to manufacture acetaldehyde from ethanol were generated based on patent information. The technology was assessed in four alternative processing options. The Electrohol process is viable in the US only if integrated to the production of 190 pf ethanol from corn in a large scale unit. To be competitive, the Electrohol process must show yields in excess of 93%. Its attractiveness depends on corn prices remaining under $2.90/bu and DDG selling for more than $132/T. A corn price of $2.00/bu is needed to make a farm-size corn-based processing alternative competitive. A plant based on the fermentation of molasses proved too expensive under the US economic assumptions. The Electrohol technology based on purchased ethanol cannot compete with the existing ethylene-based process under current conditions. To become attractive, the Electrohol process must have access to cheap ethanol ($1.43/gal). The zero electricity generation mode is the most attractive mode of operation for the Electrohol technology in the US. The penalty for low levels of generation (0.130 kwh/kg AcH) is, however, negligible. The optimum operating mode in W. Europe is the generation of 0.312 kwh/kg AcH. In Japan, the low generation level is perferred (0.130 kwh/kg AcH). In general, higher energy prices improve the competitiveness of the Electrohol processing alternatives.

  14. Simultaneous separation of cesium and strontium from spent nuclear fuel using the fission-product extraction process

    SciTech Connect (OSTI)

    Law, J.D.; Peterman, D.R.; Riddle, C.L.; Meikrantz, D.A.; Todd, T.A.

    2008-07-01

    The Fission-Product Extraction (FPEX) Process is being developed as part of the United States Department of Energy Global Nuclear Energy Partnership (GNEP) for the simultaneous separation of cesium and strontium from spent LWR fuel. Separation of the Cs and Sr will reduce the short-term heat load in a geological repository and, when combined with the separation of Am and Cm, could increase the capacity of the geological repository by a factor of approximately 100. The FPEX process is based on two highly-specific extractants: 4,4',(5')-di-(t-butyl-dicyclohexano)- 18-crown-6 (DtBuCH18C6) and calix[4]arene-bis-(t-octyl-benzo-crown-6 ) (BOBCalixC6). The DtBuCH18C6 extractant is selective for strontium, and the BOBCalixC6 extractant is selective for cesium. Results of flowsheet testing of the FPEX process with simulated and actual spent-nuclear-fuel feed solution in centrifugal contactors are detailed. Removal efficiencies, co-extraction of metals, and process hydrodynamic performance ar e discussed along with recommendations for future flowsheet testing with actual spent nuclear fuel. Recent advances in the evaluation of alternative calixarenes with increased solubility and stability are also detailed. (authors)

  15. Electron localization in a mixed-valence diniobium benzene complex

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Gianetti, Thomas L.; Nocton, Grégory; Minasian, Stefan G.; Kaltsoyannis, Nikolas; Kilcoyne, A. L. David; Kozimor, Stosh A.; Shuh, David K.; Tyliszczak, Tolek; Bergman, Robert G.; Arnold, John

    2014-11-11

    Reaction of the neutral diniobium benzene complex {[Nb(BDI)NtBu]2(μ-C6H6)} (BDI = N,N'-diisopropylbenzene-β-diketiminate) with Ag[B(C6F5)4] results in a single electron oxidation to produce a cationic diniobium arene complex, {[Nb(BDI)NtBu]2(μ-C6H6)}{B(C6F5)4}. Investigation of the solid state and solution phase structure using single-crystal X-ray diffraction, cyclic voltammetry, magnetic susceptibility, and multinuclear NMR spectroscopy indicates that the oxidation results in an asymmetric molecule with two chemically inequivalent Nb atoms. Further characterization using density functional theory (DFT) calculations, UV-visible, Nb L3,2-edge X-ray absorption near-edge structure (XANES), and EPR spectroscopies supports assignment of a diniobium complex, in which one Nb atom carries a single unpaired electron that ismore » not largely delocalized on the second Nb atom. During the oxidative transformation, one electron is removed from the δ-bonding HOMO, which causes a destabilization of the molecule and formation of an asymmetric product. Subsequent reactivity studies indicate that the oxidized product allows access to metal-based chemistry with substrates that did not exhibit reactivity with the starting neutral complex.« less

  16. Electron localization in a mixed-valence diniobium benzene complex

    SciTech Connect (OSTI)

    Gianetti, Thomas L.; Nocton, Grgory; Minasian, Stefan G.; Kaltsoyannis, Nikolas; Kilcoyne, A. L. David; Kozimor, Stosh A.; Shuh, David K.; Tyliszczak, Tolek; Bergman, Robert G.; Arnold, John

    2014-11-11

    Reaction of the neutral diniobium benzene complex {[Nb(BDI)NtBu]2(?-C6H6)} (BDI = N,N'-diisopropylbenzene-?-diketiminate) with Ag[B(C6F5)4] results in a single electron oxidation to produce a cationic diniobium arene complex, {[Nb(BDI)NtBu]2(?-C6H6)}{B(C6F5)4}. Investigation of the solid state and solution phase structure using single-crystal X-ray diffraction, cyclic voltammetry, magnetic susceptibility, and multinuclear NMR spectroscopy indicates that the oxidation results in an asymmetric molecule with two chemically inequivalent Nb atoms. Further characterization using density functional theory (DFT) calculations, UV-visible, Nb L3,2-edge X-ray absorption near-edge structure (XANES), and EPR spectroscopies supports assignment of a diniobium complex, in which one Nb atom carries a single unpaired electron that is not largely delocalized on the second Nb atom. During the oxidative transformation, one electron is removed from the ?-bonding HOMO, which causes a destabilization of the molecule and formation of an asymmetric product. Subsequent reactivity studies indicate that the oxidized product allows access to metal-based chemistry with substrates that did not exhibit reactivity with the starting neutral complex.

  17. Mixed N-Heterocyclic Carbene-Bis(oxazolinyl)borato Rhodium and Iridium Complexes in Photochemical and Thermal Oxidative Addition Reactions

    SciTech Connect (OSTI)

    Xu, Songchen; Manna, Kuntal; Ellern, Arkady; Sadow, Aaron D

    2014-12-08

    In order to facilitate oxidative addition chemistry of fac-coordinated rhodium(I) and iridium(I) compounds, carbenebis(oxazolinyl)phenylborate proligands have been synthesized and reacted with organometallic precursors. Two proligands, PhB(OxMe2)2(ImtBuH) (H[1]; OxMe2 = 4,4-dimethyl-2-oxazoline; ImtBuH = 1-tert-butylimidazole) and PhB(OxMe2)2(ImMesH) (H[2]; ImMesH = 1-mesitylimidazole), are deprotonated with potassium benzyl to generate K[1] and K[2], and these potassium compounds serve as reagents for the synthesis of a series of rhodium and iridium complexes. Cyclooctadiene and dicarbonyl compounds {PhB(OxMe2)2ImtBu}Rh(?4-C8H12) (3), {PhB(OxMe2)2ImMes}Rh(?4-C8H12) (4), {PhB(OxMe2)2ImMes}Rh(CO)2 (5), {PhB(OxMe2)2ImMes}Ir(?4-C8H12) (6), and {PhB(OxMe2)2ImMes}Ir(CO)2 (7) are synthesized along with ToMM(?4-C8H12) (M = Rh (8); M = Ir (9); ToM = tris(4,4-dimethyl-2-oxazolinyl)phenylborate). The spectroscopic and structural properties and reactivity of this series of compounds show electronic and steric effects of substituents on the imidazole (tert-butyl vs mesityl), effects of replacing an oxazoline in ToM with a carbene donor, and the influence of the donor ligand (CO vs C8H12). The reactions of K[2] and [M(?-Cl)(?2-C8H14)2]2 (M = Rh, Ir) provide {?4-PhB(OxMe2)2ImMes?CH2}Rh(?-H)(?-Cl)Rh(?2-C8H14)2 (10) and {PhB(OxMe2)2ImMes}IrH(?3-C8H13) (11). In the former compound, a spontaneous oxidative addition of a mesityl ortho-methyl to give a mixed-valent dirhodium species is observed, while the iridium compound forms a monometallic allyl hydride. Photochemical reactions of dicarbonyl compounds 5 and 7 result in CH bond oxidative addition providing the compounds {?4-PhB(OxMe2)2ImMes?CH2}RhH(CO) (12) and {PhB(OxMe2)2ImMes}IrH(Ph)CO (13). In 12, oxidative addition results in cyclometalation of the mesityl ortho-methyl similar to 10, whereas the iridium compound reacts with the benzene solvent to give a rare crystallographically characterized cis-[Ir](H)(Ph) complex. Alternatively, the rhodium carbonyl 5 or iridium isocyanide {PhB(OxMe2)2ImMes}Ir(CO)CNtBu (15) reacts with PhSiH3 in the dark to form the silyl compound {PhB(OxMe2)2ImMes}RhH(SiH2Ph)CO (14) or {PhB(OxMe2)2ImMes}IrH(SiH2Ph)CNtBu (17). These examples demonstrate the enhanced thermal reactivity of {PhB(OxMe2)2ImMes}-supported iridium and rhodium carbonyl compounds in comparison to tris(oxazolinyl)borate, tris(pyrazolyl)borate, and cyclopentadienyl-supported compounds.

  18. Top quark physics at the Tevatron results and prospects

    SciTech Connect (OSTI)

    K. Sliwa

    2002-10-16

    The methodology of CDF and D0 top quark analyses and their underlying assumptions are summarized. The CDF and D0 top mass averages, obtained from measurements in several channels and based on about 100 pb{sup -1} of data from p{bar p} collisions at {radical}s = 1.8 TeV collected by each experiment in Run-I, are: M{sub t} = 176.1 {+-} 4.0(stat) {+-} 5.1(syst) GeV/c{sup 2} and M{sub t} = 172.1 {+-} 5.2(stat) {+-} 4.9(syst) Gev/C{sup 2}, respectively. The combined Tevatron measurement of the top quark mass is M{sub t} = 174.3 {+-} 3.2(stat) {+-} 4.0(syst) GeV/c{sup 2}. The CDF measurement of the t{bar t} cross section (assuming M{sub t} = 175 GeV/c{sup 2}) is {sigma}{sub tt} = 6.5 {+-} {sub 1.4}{sup 1.6} pb, and the D0 value (assuming M{sub t} = 172.1 GeV/c{sup 2}) is {sigma}{sub tt} = 5.9 {+-} 1.7 pb. In anticipation of much larger statistics, prospects for top physics in Tevatron Run-II are summarized. The fact that top quark analyses are among the best windows to physics beyond the Standard Model is emphasized.

  19. Simultaneous measurement of forward-backward asymmetry and top polarization in dilepton final states from $t\\bar t$ production at the Tevatron

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abazov, Victor Mukhamedovich

    2015-09-22

    We present a simultaneous measurement of the forward-backward asymmetry and the top-quark polarization in tt production in dilepton final states using 9.7 fb1 of proton-antiproton collisions at ?s=1.96 TeV with the D0 detector. To reconstruct the distributions of kinematic observables we employ a matrix element technique that calculates the likelihood of the possible tt kinematic configurations. After accounting for the presence of background events and for calibration effects, we obtain a forward-backward asymmetry of Att=(15.06.4(stat)4.9(syst))% and a top-quark polarization times spin analyzing power in the beam basis of ?P=(7.210.5(stat)4.2(syst))%, with a correlation of 56% between the measurements. If we constrainmorethe forward-backward asymmetry to its expected standard model value, we obtain a measurement of the top polarization of ?P=(11.39.1(stat)1.9(syst))%. If we constrain the top polarization to its expected standard model value, we measure a forward-backward asymmetry of Att=(17.55.6(stat)3.1(syst))%. A combination with the D0 Att measurement in the lepton+jets final state yields an asymmetry of Att=(11.82.5(stat)1.3(syst))%. Within their respective uncertainties, all these results are consistent with the standard model expectations.less

  20. Top-quark mass measurement using events with missing transverse energy and jets at CDF

    SciTech Connect (OSTI)

    Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Anastassov, A; Amidei, D; Antos, J; Annovi, A

    2013-07-01

    We present a measurement of the top-quark mass with tt? events using a data sample corresponding to an integrated luminosity of 5.7 fb -1 of pp? collisions at the Fermilab Tevatron with ?s = 1.96 TeV and collected by the CDF II Detector. We select events having no identified charged leptons, large missing transverse energy, and four, five, or six jets with at least one jet containing a secondary vertex consistent with the decay of a b quark. This analysis considers events from the semileptonic tt? decay channel, including events that contain tau leptons, which are usually not included in the top-quark mass measurements. The measurement uses as kinematic variables the invariant mass of two jets consistent with the mass of the W boson, and the invariant masses of two different three-jet combinations. We fit the data to signal templates of varying top-quark masses and background templates, and measure a top-quark mass of Mtop = 172.3 2.4 (stat) 1.0 (syst) GeV/c2.

  1. Measurement of Spin Correlation in Top-Antitop Quark Events and Search for Top Squark Pair Production in p p Collisions at s = 8 TeV Using the ATLAS Detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; et al

    2015-04-08

    A measurement of spin correlation in tt¯ production is presented using data collected with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 20.3 fb⁻¹. The correlation between the top and antitop quark spins is extracted from dilepton tt¯ events by using the difference in the azimuthal angle between the two charged leptons in the laboratory frame. In the helicity basis the measured degree of correlation corresponds to Ahelicity=0.38±0.04, in agreement with the standard model prediction. A search is performed for pair production of topmore » squarks with masses close to the top quark mass decaying to predominantly right-handed top quarks and a light neutralino, the lightest supersymmetric particle. Top squarks with masses between the top quark mass and 191 GeV are excluded at the 95% confidence level.« less

  2. Inclusive and differential measurements of the $\\mathrm{ t \\bar{t} }$ charge asymmetry in pp collisions at $\\sqrt{s} =$ 8 TeV

    SciTech Connect (OSTI)

    Khachatryan, Vardan

    2015-07-14

    The tt charge asymmetry is measured in proton-proton collisions at a centre-of-mass energy of 8 TeV. The data, collected with the CMS experiment at the LHC, correspond to an integrated luminosity of 19.7 fb-1 . Selected events contain an electron or a muon and four or more jets, where at least one jet is identified as originating from b-quark hadronization. The inclusive charge asymmetry is found to be 0.0010 0.0068 (stat) 0.0037 (syst). In addition, differential charge asymmetries as a function of rapidity, transverse momentum, and invariant mass of the tt system are studied. For the first time at the LHC, our measurements are also performed in a reduced fiducial phase space of top quark pair production, with an integrated result of -0.0035 0.0072 (stat) 0.0031 (syst). Additionally, all measurements are consistent within two standard deviations with zero asymmetry as well as with the predictions of the standard model.

  3. Top-quark mass measurement using events with missing transverse energy and jets at CDF

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2013-07-01

    We present a measurement of the top-quark mass with tt̄ events using a data sample corresponding to an integrated luminosity of 5.7 fb -1 of pp̄ collisions at the Fermilab Tevatron with √s = 1.96 TeV and collected by the CDF II Detector. We select events having no identified charged leptons, large missing transverse energy, and four, five, or six jets with at least one jet containing a secondary vertex consistent with the decay of a b quark. This analysis considers events from the semileptonic tt̄ decay channel, including events that contain tau leptons, which are usually not included inmore » the top-quark mass measurements. The measurement uses as kinematic variables the invariant mass of two jets consistent with the mass of the W boson, and the invariant masses of two different three-jet combinations. We fit the data to signal templates of varying top-quark masses and background templates, and measure a top-quark mass of Mtop = 172.3 ± 2.4 (stat) ± 1.0 (syst) GeV/c2.« less

  4. Compact neutron generator

    DOE Patents [OSTI]

    Leung, Ka-Ngo; Lou, Tak Pui

    2005-03-22

    A compact neutron generator has at its outer circumference a toroidal shaped plasma chamber in which a tritium (or other) plasma is generated. A RF antenna is wrapped around the plasma chamber. A plurality of tritium ion beamlets are extracted through spaced extraction apertures of a plasma electrode on the inner surface of the toroidal plasma chamber and directed inwardly toward the center of neutron generator. The beamlets pass through spaced acceleration and focusing electrodes to a neutron generating target at the center of neutron generator. The target is typically made of titanium tubing. Water is flowed through the tubing for cooling. The beam can be pulsed rapidly to achieve ultrashort neutron bursts. The target may be moved rapidly up and down so that the average power deposited on the surface of the target may be kept at a reasonable level. The neutron generator can produce fast neutrons from a T-T reaction which can be used for luggage and cargo interrogation applications. A luggage or cargo inspection system has a pulsed T-T neutron generator or source at the center, surrounded by associated gamma detectors and other components for identifying explosives or other contraband.

  5. I

    Office of Legacy Management (LM)

    I 1' . _ .t. /' L* x ,! " - p. iI C/-f-j i c, -q iGJbr%pq 22, 19&i 40:m Clli ;xmn r;. Cre?ltz J t E Y"* kL ss&LJl L' fJ i:~-q::~ i;<-t;j.!;z;:, 1 :,'. :; pctl;c-it nt a tsst of the ::3fr iZQviQ@l QT<*rl,l$jiOn t;rCso t!t t!lO 13 "; ?! i'@ t?'lS 2.2' I'"!'\Y ir, colw~bus with plome bill&S SO?' l"c fro?1 i:ol .T. ThO ~3X.~:nri.*,ellti FfB ~tt-?%-:Oti fOF 9 heYi., BQIpdPpJ 21. !?PeBait'k "~..j,;PC~ 1 .r. LOi~lr.tl 0" RU335li, ~iJrj.~~uioll sjl.6

  6. Long Length Contaminated Equipment Retrieval System Receiver Trailer and Transport Trailer Operations and Maintenance Manual

    SciTech Connect (OSTI)

    DALE, R.N.

    2000-05-01

    A system to accommodate the removal of long-length contaminated equipment (LLCE) from Hanford underground radioactive waste storage tanks was designed, procured, and demonstrated, via a project activity during the 1990s. The system is the Long Length Contaminated Equipment Removal System (LLCERS). LLCERS will be maintained and operated by Tank Farms Engineering and Operations organizations and other varied projects having a need for the system. The responsibility for the operation and maintenance of the LLCERS Receiver Trailer (RT) and Transport Trailer (TT) resides with the RPP Characterization Project Operations organization. The purpose of this document is to provide vendor supplied operating and maintenance (O & M) information for the RT and TT in a readily retrievable form. This information is provided this way instead of in a vendor information (VI) file to maintain configuration control of the operations baseline as described in RPP-6085, ''Configuration Management Plan for Long Length Contaminated Equipment Receiver and Transport Trailers''. Additional Operations Baseline documents are identified in RPP-6085.

  7. 16C

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    C β--Decay Evaluated Data Measurements 1961HI01: 16C; measured not abstracted; deduced nuclear properties. 1976AL02: 16C; measured Eγ, Iγ, γ(t), T1/2, delayed neutrons log ft. 16N deduced levels. 1976FI03: 16C; measured T1/2, delayed γ, delayed neutrons. 1983GA03: 16C(β-), (β-n); measured β(t), γ(t), βγ-coin; deduced log ft. 16N levels deduced β-branching ratio. 2000BU33, 2001GR06: 16C(β-n); measured β-delayed neutron spectra. 16N deduced level, J, π. Comparison with shell model

  8. 16Ne

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ne Ground-State Decay Evaluated Data Measured Ground-State Γcm for 16Ne Adopted value: 122 ± 37 keV (1993TI07) Measured Mass Excess for 16Ne Adopted value: 23996 ± 20 keV (2003AU02) Measurements 1971MAXQ: 16O(π+, π-); measured particle spectra, σ. 1977HO13: 16O(π+, π-), E = 145 MeV; measured σ; deduced Q. 16Ne deduced mass excess. 1977KEZX: 20Ne(α, 8He), E = 118 MeV; measured σ. 16Ne deduced levels, mass excess. 1978BU09: 16O(π+, π-), E = 145 MeV; measured σ. 16Ne deduced mass

  9. A=10Be (66LA04)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    66LA04) (See Energy Level Diagrams for 10Be) GENERAL: See (KU56, FR57, BA59F, KU60A, TA60L, BA61N, TR61, BU63D, VL63A, WA63C, FR64D, GR64C, VO64C, WA64H, WA64K). See also Table 10.1 [Table of Energy Levels] (in PDF or PS). 1. 10Be(β-)10B Qm = 0.555 The weighted mean end-point energy is 0.556 ± 0.003 MeV (LI51A). The mean half life is (2.7 ± 0.4) x 106 y (HU49A): log ft = 13.65 (FE51B). The spectrum is of the D2 type (WU50). 2. (a) 7Li(t, α)6He Qm = 9.834 Eb = 17.250 (b) 7Li(t, 2n)8Be Qm =

  10. A=12B (1975AJ02)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    75AJ02) (See Energy Level Diagrams for 12B) GENERAL: See also (1968AJ02) and Table 12.2 [Table of Energy Levels] (in PDF or PS). Model calculations: (1968FU1B, 1968GU11, 1969MO1F, 1969VA1C, 1970TA1J, 1973HA49, 1973SA30). Special levels: (1968CE1A, 1968GU11, 1970FR1C, 1973SA30). Electromagnetic transitions: (1969VA1C, 1973HA49, 1973SA30). Special reactions: (1969AR13, 1969GA18, 1971AR02, 1973KO1D, 1973WI15, 1974FO22). Muon capture (See also reaction 16.): (1969VA37, 1970BU1B, 1970HI09, 1971MO1Q,

  11. A=13B (1981AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1AJ01) (See Energy Level Diagrams for 13B) GENERAL: See also (1976AJ04) and Table 13.1 [Table of Energy Levels] (in PDF or PS). Experimental work on complex reactions in which 13B is observed: (1976BU16, 1977AR06, 1978GE1C, 1978KO01, 1979LE1J). Reviews and theoretical papers: (1976AB04, 1976VA29, 1977DO06, 1978AB08, 1978DE15, 1979AL22, 1979BE1H, 1979BO22, 1980MA1F, 1980MU1B). Q = 0.0478 ± 0.0046 b (1973HAVZ, 1978LEZA). μ = +3.17778 ± 0.00051 nm (1978LEZA). 1. 13B(β-)13C Qm = 13.437 The

  12. A=16Ne (1986AJ04)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    6AJ04) (See the Isobar Diagram for 16Ne) GENERAL: See also (1982AJ01) and Table 16.26 [Table of Energy Levels] (in PDF or PS) here. See (1981SE1B, 1983ANZQ, 1985AN28, 1985MA1X). Mass of 16Ne: The Q-values of the 20Ne(α, 8He) and 16O(π+, π-) reactions lead to atomic mass excesses of 23.93 ± 0.08 MeV (1978KE06), 23.978 ± 0.024 MeV (1983WO01) and 24.048 ± 0.045 MeV (1980BU15) [recalculated using the (1985WA02) masses for 8He, 16O and 20Ne]. The weighted mean is 23.989 ± 0.020 MeV which is

  13. A=16Ne (1993TI07)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    93TI07) (See the Isobar Diagram for 16Ne) GENERAL: See Table Prev. Table 16.29 preview 16.29 [General Table] (in PDF or PS) and Table Prev. Table 16.32 preview 16.32 [Table of Energy Levels] (in PDF or PS). Mass of 16Ne: The Q-values of the 20Ne(α, 8He) and 16O(π+, π-) reactions lead to atomic mass excesses of 23.93 ± 0.08 MeV (1978KE06), 23.978 ± 0.024 MeV (1983WO01) and 24.048 ± 0.045 MeV (1980BU15) [recalculated using the (1985WA02) masses for 8He, 16O and 20Ne]. The weighted mean is

  14. A=19F (1978AJ03)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    78AJ03) (See Energy Level Diagrams for 19F) GENERAL: See (1972AJ02) and Table 19.6 [Table of Energy Levels] (in PDF or PS). Shell model: (1970FL1A, 1972EN03, 1972GU05, 1972LE13, 1972NE1B, 1973DE13, 1973JU1A, 1973LA1D, 1973MA1K, 1973MC06, 1973MC1E, 1973ME1D, 1973SM1C, 1974CO39, 1975BA81, 1975GA1L, 1975MA1U, 1975SUZR, 1977HA33, 1977SH11). Cluster, collective and rotational models: (1972NE1B, 1973DE06, 1973MC1E, 1973NE1C, 1973RO19, 1976LE19, 1977BU05, 1977HO1F). Electromagnetic transitions:

  15. A=7Be (1984AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4AJ01) (See Energy Level Diagrams for 7Be) GENERAL: See also (1979AJ01) and Table 7.7 [Table of Energy Levels] (in PDF or PS). Nuclear models: (1978RE1A, 1979WI1B, 1980HA1M, 1981KU13, 1982FI13, 1983WA1M). Astrophysical questions: (1978BU1B, 1979MO04, 1979RA20, 1979RA1C, 1980CA1C, 1980LA1G, 1980WI1M, 1983LI01). Applied work: (1979LA1E, 1982HA1D, 1983HA1W). Complex reactions involving 7Be: (1978DI1A, 1978DU1B, 1978HA40, 1978HE1C, 1979BO22, 1979KA07, 1979LO11, 1979PO10, 1979RA20, 1979SC1D,

  16. A=7He (1984AJ01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4AJ01) (See the Isobar Diagram for 7He) GENERAL: See also (1979AJ01) and Table 7.1 [Table of Energy Levels] (in PDF or PS). Reactions involving pions: (1978FU09, 1979BA1M, 1979PE1C). Hypernuclei: (1978DA1A, 1978SO1A, 1979BU1C, 1981WA1J, 1982KO11). Other topics: (1979BE1H, 1981AV02, 1982AW02, 1982NG01). 1. 7Li(π-, γ)7He Qm = 128.36 See (1979AJ01). 2. 7Li(n, p)7He Qm = -10.42 At En = 14.8 MeV a proton group is reported corresponding to 7Heg.s.: Γ < 0.2 MeV: see (1979AJ01). See also

  17. 2011 Chevrolet Volt VIN 0815 Plug-In Hybrid Electric Vehicle Battery Test Results

    SciTech Connect (OSTI)

    Tyler Gray; Matthew Shirk; Jeffrey Wishart

    2013-07-01

    The U.S. Department of Energy (DOE) Advanced Vehicle Testing Activity (AVTA) program consists of vehicle, battery, and infrastructure testing on advanced technology related to transportation. The activity includes tests on plug-in hybrid electric vehicles (PHEVs), including testing the PHEV batteries when both the vehicles and batteries are new and at the conclusion of 12,000 miles of on-road fleet testing. This report documents battery testing performed for the 2011 Chevrolet Volt PHEV (VIN 1G1RD6E48BU100815). The battery testing was performed by the Electric Transportation Engineering Corporation (eTec) dba ECOtality North America. The Idaho National Laboratory and ECOtality North America collaborate on the AVTA for the Vehicle Technologies Program of the DOE.

  18. Atmospheric Pressure Chemical Vapor Deposition of High Silica SiO2-TiO2 Antireflective Thin Films for Glass Based Solar Panels

    SciTech Connect (OSTI)

    Klobukowski, Erik R; Tenhaeff, Wyatt E; McCamy, James; Harris, Caroline; Narula, Chaitanya Kumar

    2013-01-01

    The atmospheric pressure chemical vapor deposition (APCVD) of SiO2-TiO2 thin films employing [[(tBuO)3Si]2O-Ti(OiPr)2], which can be prepared from commercially available materials, results in antireflective thin films on float glass under industrially relevant manufacturing conditions. It was found that while the deposition temperature had an effect on the SiO2:TiO2 ratio, the thickness was dependent on the time of deposition. This study shows that it is possible to use APCVD employing a single source precursor containing titanium and silicon to produce thin films on float glass with high SiO2:TiO2 ratios.

  19. Page

    Gasoline and Diesel Fuel Update (EIA)

    Updated: January 2013 Page 1 APPENDIX A CRUDE STREAM CODES COUNTRY Stream Code Stream Name Gravity Sulfur Abu Dhabi UA008 Al Bunduq 38.5 1.1 UA009 Mubarraz 38.1 0.9 UA010 Murban 40.5 0.8 UA011 Zakum (Lower Zakum/Abu Dhabi Marine) 40.6 1 UA012 Umm Shaif (Abu Dhabi Marine) 37.4 1.5 UA013 Arzanah 44 0 UA018 Abu Al Bu Khoosh 31.6 2 UA020 Murban Bottoms 21.4 NA UA021 Top Murban 21 NA UA022 Upper Zakum 34.4 1.7 UA299 Abu Dhabi Miscellaneous NA NA Algeria AG020 Arzew 44.3 0.1 AG021 Hassi Messaoud 42.8

  20. Synthesis of peptide .alpha.-thioesters

    DOE Patents [OSTI]

    Camarero, Julio A. (Livermore, CA); Mitchell, Alexander R. (Livermore, CA); De Yoreo, James J. (Clayton, CA)

    2008-08-19

    Disclosed herein is a new method for the solid phase peptide synthesis (SPPS) of C-terminal peptide .alpha. thioesters using Fmoc/t-Bu chemistry. This method is based on the use of an aryl hydrazine linker, which is totally stable to conditions required for Fmoc-SPPS. When the peptide synthesis has been completed, activation of the linker is achieved by mild oxidation. The oxidation step converts the acyl-hydrazine group into a highly reactive acyl-diazene intermediate which reacts with an .alpha.-amino acid alkylthioester (H-AA-SR) to yield the corresponding peptide .alpha.-thioester in good yield. A variety of peptide thioesters, cyclic peptides and a fully functional Src homology 3 (SH3) protein domain have been successfully prepared.

  1. Data Mining Techniques to Estimate Plutonium, Initial Enrichment, Burnup, and Cooling Time in Spent Fuel Assemblies

    SciTech Connect (OSTI)

    Trellue, Holly Renee; Fugate, Michael Lynn; Tobin, Stephen Joesph

    2015-03-19

    The Next Generation Safeguards Initiative (NGSI), Office of Nonproliferation and Arms Control (NPAC), National Nuclear Security Administration (NNSA) of the U.S. Department of Energy (DOE) has sponsored a multi-laboratory, university, international partner collaboration to (1) detect replaced or missing pins from spent fuel assemblies (SFA) to confirm item integrity and deter diversion, (2) determine plutonium mass and related plutonium and uranium fissile mass parameters in SFAs, and (3) verify initial enrichment (IE), burnup (BU), and cooling time (CT) of facility declaration for SFAs. A wide variety of nondestructive assay (NDA) techniques were researched to achieve these goals [Veal, 2010 and Humphrey, 2012]. In addition, the project includes two related activities with facility-specific benefits: (1) determination of heat content and (2) determination of reactivity (multiplication). In this research, a subset of 11 integrated NDA techniques was researched using data mining solutions at Los Alamos National Laboratory (LANL) for their ability to achieve the above goals.

  2. Efficient One-Step Electrolytic Recycling of Low-Grade and Post-Consumer Magnesium Scrap

    SciTech Connect (OSTI)

    Adam C. Powell, IV

    2012-07-19

    Metal Oxygen Separation Technologies, Inc. (abbreviated MOxST, pronounced most) and Boston University (BU) have developed a new low-cost process for recycling post-consumer co-mingled and heavily-oxidized magnesium scrap, and discovered a new chemical mechanism for magnesium separations in the process. The new process, designated MagReGenTM, is very effective in laboratory experiments, and on scale-up promises to be the lowest-cost lowest-energy lowest-impact method for separating magnesium metal from aluminum while recovering oxidized magnesium. MagReGenTM uses as little as one-eighth as much energy as today's methods for recycling magnesium metal from comingled scrap. As such, this technology could play a vital role in recycling automotive non-ferrous metals, particularly as motor vehicle magnesium/aluminum ratios increase in order to reduce vehicle weight and increase efficiency.

  3. Synthesis, NMR spectra, and structure of rhodium hydride complexes with Rh-Sn bonds

    SciTech Connect (OSTI)

    Krut'ko, B.P.; Permin, A.B.; Petrosyan, V.S.; Reutov, O.A.

    1985-06-20

    The authors study the hydride complexes using Sn 119 and H 1 NMR spectroscopy. The spectra were taken in a pulse mode on a Varian FT-80A spectrometer equipped with a wideband system at 29.66 and 79.54 MHz. The Sn 119 and H 1 NMR spectral parameters for a solution of the complex (Bu/sub 4/N)/sub 3/ (HRh(SnCl/sub 3/)/sub 5/) in CD/sub 3/CN are shown, the spectra show that the (HRh(SnCl/sub 3/)/sub 5/)/sup 3 -/ anion has octahedral structure with four equatorial and one axial Rh-Sn bonds. New rhodium hydride complexes with general formula (R/sub 4/N)/sub 3/(HRh(SnCl/sub 3/)/sub 5/) were synthesized.

  4. I

    Office of Legacy Management (LM)

    ?am-3 . ,' .*. . - yp: -.* : .- ., ._ ' Yi * <. ? :+". thfa prcbputir. 80,UUU lb. of tmmiuu, J.m,cDu lb. of 3wukdlw crper' tiwu 5.8 t&i8 l atr:irur ral u&d i.Wttd&?# Bir;n8 i;orammant end rUl rid nrtrlcial by uo&utboFlwd putqlm. ). The ~&&a, ' 8m ;altielJ 79 p-rmlt arrgora ted and ttw tap t.ha aikalini~, . L pokotlal brlf)r, bU88M 8-i .ii.i co# sat8 awtaet wltb the mBtmtl8a. aada q*iast fb a8v0-*..u @ow +.ta p-?Y h&al. . .; . ' 6 G.. ..*... . ,,z.. ,. ..*,::

  5. A Singular Differential Equation Stemming from an Optimal Control Problem in Financial Economics

    SciTech Connect (OSTI)

    Brunovsky, Pavol; Cerny, Ales; Winkler, Michael

    2013-10-15

    We consider the ordinary differential equation x{sup 2} u'' = axu'+bu-c(u'-1){sup 2}, x Element-Of (0,x{sub 0}), with a Element-Of R, b Element-Of R , c>0 and the singular initial condition u(0)=0, which in financial economics describes optimal disposal of an asset in a market with liquidity effects. It is shown in the paper that if a+b<0 then no continuous solutions exist, whereas if a+b>0 then there are infinitely many continuous solutions with indistinguishable asymptotics near 0. Moreover, it is proved that in the latter case there is precisely one solution u corresponding to the choice x{sub 0}={infinity} which is such that 0{<=}u(x){<=}x for all x>0, and that this solution is strictly increasing and concave.

  6. HEALTH AhO SAFETY DIVISION Industrial Hygiene or Medical Dept.

    Office of Legacy Management (LM)

    ALYTICAL DATA SHEET ANALYTICAL DEPT. - HEALTH AhO SAFETY DIVISION Industrial Hygiene or Medical Dept. m 1956 w I. H.# 7g2 Semplb Nos l2 Date Collected- 512 by RlX -----Route to EA LocetionKN(U[YTr-r-ETyp of Sample ~hd%---Analyzed for F Alphaxx Rema&mre t&n from the furnace and from U= Beta JOC slap ladles. No, Ro Oil PH Be Th Nc0 NO 8506 BcA-j &A- ii \JC cL"w-- Anolyticol Chemistry Secrion: Date Received--!b4-56 by Lab* Date Reported 6-X-66 bu I&b , Method of Analyair

  7. Simonis Sa7; and Steel. Company Occu?atisnal Exposure to Radioactive Eust

    Office of Legacy Management (LM)

    pff!' ;-g / (. _ ' /' :ze Simonis Sa7; and Steel. Company . Occu?atisnal Exposure to Radioactive Eust STisit 0' Cctober 27, 1948 by LL%AEC, NY-00 -.- .^ -___ .~.~ .___--.__ y ii . 8;' ' j _ ii* .$@!w- mqa yq 1 -9. c--t c! ;i.s -1 .;- 8. ,3' .$ !, ., ,:' S ' -4 - ;,.j j ;j Y 3 :;.% ,y :; -' ,C-, .,.; sL;./, &j ;d J .&; i: 7;: j:c; G Lj _ , ,.A: :' .i TIiBU OP cc>:m;~s A,. P*zyoaa of rbpo*rt 3, iitzm iLt=P 02 St-&J c* zz@fi&. of s+xdy I, op~~",io~b IIzrp~ii~ 3t xo11ing

  8. Nucleophilic fluorination of aromatic compounds

    DOE Patents [OSTI]

    Satyamurthy, Nagichettiar; Barrio, Jorge R

    2014-03-18

    Iodylbenzene derivatives substituted with electron donating as well as electron withdrawing groups on the aromatic ring are used as precursors in aromatic nucleophilic substitution reactions. The iodyl group (IO.sub.2) is regiospecifically substituted by nucleophilic fluoride to provide the corresponding fluoroaryl derivatives. No-carrier-added [F-18]fluoride ion derived from anhydrous [F-18](F/Kryptofix, [F-18]CsF or a quaternary ammonium fluoride (e.g., Me.sub.4NF, Et.sub.4NF, n-Bu.sub.4NF, (PhCH.sub.2).sub.4NF) exclusively substitutes the iodyl moiety in these derivatives and provides high specific activity F-18 labeled fluoroaryl analogs. Iodyl derivatives of a benzothiazole analog and 6-iodyl-L-dopa derivatives have been synthesized as precursors and have been used in the preparation of no-carrier-added [F-18]fluorobenzothiazole as well as 6-[F-18]fluoro-L-dopa.

  9. Impacts of Mid-level Biofuel Content in Gasoline on SIDI Engine-Out and Tailpipe Particulate Matter Emissions: Preprint

    SciTech Connect (OSTI)

    He, X.; Ireland, J. C.; Zigler, B. T.; Ratcliff, M. A.; Knoll, K. E.; Alleman, T. L.; Tester, J. T.

    2011-02-01

    The influences of ethanol and iso-butanol blended with gasoline on engine-out and post Three-Way Catalyst (TWC) particle size distribution and number concentration were studied using a GM 2.0L turbocharged Spark Ignition Direct Injection (SIDI) engine. The engine was operated using the production ECU with a dynamometer controlling the engine speed and the accelerator pedal position controlling the engine load. A TSI Fast Mobility Particle Sizer (FMPS) spectrometer was used to measure the particle size distribution in the range from 5.6 to 560 nm with a sampling rate of 1 Hz. US federal certification gasoline (E0), two ethanol-blended fuels (E10 and E20), and 11.7% iso-butanol blended fuel (BU12) were tested. Measurements were conducted at ten selected steady-state engine operation conditions. Bi-modal particle size distributions were observed for all operating conditions with peak values at particle sizes of 10 nm and 70 nm. Idle and low speed / low load conditions emitted higher total particle numbers than other operating conditions. At idle, the engine-out Particulate Matter (PM) emissions were dominated by nucleation mode particles, and the production TWC reduced these nucleation mode particles by more than 50%, while leaving the accumulation mode particle distribution unchanged. At engine load higher than 6 bar NMEP, accumulation mode particles dominated the engine-out particle emissions and the TWC had little effect. Compared to the baseline gasoline (E0), E10 does not significantly change PM emissions, while E20 and BU12 both reduce PM emissions under the conditions studied. Iso-butanol was observed to impact PM emissions more than ethanol, with up to 50% reductions at some conditions. In this paper, the issues related to PM measurement using FMPS are also discussed. While some uncertainties are due to engine variation, the FMPS must be operated under careful maintenance procedures in order to achieve repeatable measurement results.

  10. Development and Pilot Manufacture of Pseudo-Electric Double Layer Capacitors

    SciTech Connect (OSTI)

    Dae Young Jung,

    2011-01-26

    Binghamton University carried out basic studies on thermal characteristics of the current ELDC design and characterization of current active and conductive carbon materials used to fabricate ELDC and p-ELDC. Multi physics approach was take for thermal modeling to understand the temperature distribution of an individual cell as well as multi-cell systems, which is an important factor to the reliability of ELDC?s and p-ELDC?s. Structure and properties were characterized for various raw active carbon materials which can be used as electrode to look into potential cost reduction opportunity without degrading the performance. BU team also performed experiments for compositional optimization studies for active carbon, conductive carbon, and binder formulation. A few laboratory instruments were installed for this project at BU. These instruments will continued to be used to carry out further research and development tasks relevant to ELDC and p-ELDC. Project subawardee, Ioxus, Inc., successfully created, enhanced, and then generated a product line of hybrid capacitors which now range in size from 220 Farads (F) to 1000F. These products have been proven to work as the primary energy storage method for LED lighting applications, and two significant commercial applications are evaluating these devices for use. Both of these applications will be used in LED lighting, which replaces traditional batteries and allows for a very fast charge and a high cycle life, over a wide temperature range. This will lead to a significant reduction of waste that ends up in landfills. These products are 70% recyclable, with a 10 year life. In one both applications, it is expected that the hybrid capacitor will power the LED lights for the life of the product, which would have required at least 10 battery changes.

  11. Analysis of the OECD/NRC BWR Turbine Trip Transient Benchmark with the Coupled Thermal-Hydraulics and Neutronics Code TRAC-M/PARCS

    SciTech Connect (OSTI)

    Lee, Deokjung; Downar, Thomas J.; Ulses, Anthony; Akdeniz, Bedirhan; Ivanov, Kostadin N.

    2004-10-15

    An analysis of the Peach Bottom Unit 2 Turbine Trip 2 (TT2) experiment has been performed using the U.S. Nuclear Regulatory Commission coupled thermal-hydraulics and neutronics code TRAC-M/PARCS. The objective of the analysis was to assess the performance of TRAC-M/PARCS on a BWR transient with significance in two-phase flow and spatial variations of the neutron flux. TRAC-M/PARCS results are found to be in good agreement with measured plant data for both steady-state and transient phases of the benchmark. Additional analyses of four fictitious extreme scenarios are performed to provide a basis for code-to-code comparisons and comprehensive testing of the thermal-hydraulics/neutronics coupling. The obtained results of sensitivity studies on the effect of direct moderator heating on transient simulation indicate the importance of this modeling aspect.

  12. Measurement of the Top Pair Production Cross Section in the Lepton + Jets Channel Using a Jet Flavor Discriminant

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2011-08-01

    We present a new method to measure the top quark pair production cross section and the background rates with data corresponding to an integrated luminosity of 2.7 fb-1 from p p̄ collisions at √s = 1.96 TeV collected with the CDF II Detector. We select events with a single electron or muon candidate, missing transverse energy, and at least one b-tagged jet. We perform a simultaneous fit to a jet flavor discriminant across nine samples defined by the number of jets and b-tags. An advantage of this approach is that many systematic uncertainties are measured in situ and inversely scalemore » with integrated luminosity. We measure a top cross section of σtt¯ = 7.64 ± 0.57 (stat + syst) ± 0.45 (luminosity) pb.« less

  13. Exclusive pi^0 electroproduction at W > 2 GeV with CLAS

    SciTech Connect (OSTI)

    Bedlinskiy, I.; Kubarovsky, V.; Niccolai, S.; Stoler, P.; Adhikari, K.P.; Anderson, M.D.; Pereira, S. Anefalos; Avakian, H.; Ball, J.; Baltzell, N.A.; Battaglieri, M.; Batourine, V.; Biselli, A.S.; Boiarinov, S.; Bono, J.; Briscoe, W.J.; Brooks, W.K.; Burkert, V.D.; Carman, D.S.; Celentano, A.; Chandavar, S.; Colaneri, L.; Cole, P.L.; Contalbrigo, M.; Cortes, O.; Crede, V.; D'Angelo, A.; Dashyan, N.; De Vita, R.; De Sanctis, E.; Deur, A.; Djalali, C.; Doughty, D.; Dupre, R.; Egiyan, H.; El Alaoui, A.; El Fassi, L.; Elouadrhiri, L.; Eugenio, P.; Fedotov, G.; Fegan, S.; Fleming, J.A.; Forest, T.A.; Garillon, B.; Garcon, M.; Gavalian, G.; Gevorgyan, N.; Ghandilyan, Y.; Gilfoyle, G.P.; Giovanetti, K.L.; Girod, F.X.; Golovatch, E.; Gothe, R.W.; Griffioen, K.A.; Guegan, B.; Guo, L.; Hafidi, K.; Hakobyan, H.; Harrison, N.; Hattawy, M.; Hicks, K.; Holtrop, M.; Ireland, D.G.; Ishkhanov, B.S.; Isupov, E.L.; Jenkins, D.; Jo, H.S.; Joo, K.; Keller, D.; Khandaker, M.; Kim, A.; Kim, W.; Klein, A.; Klein, F.J.; Koirala, S.; Kuhn, S.E.; Kuleshov, S.V.; Lenisa, P.; Levine, W.I.; Livingston, K.; Lu, H.Y.; MacGregor, I.J.D.; Markov, N.; Mayer, M.; McKinnon, B.; Mirazita, M.; Mokeev, V.; Montgomery, R.A.; Moody, C.I.; Moutarde, H.; Movsisyan, A; Munoz Camacho, C.; Nadel-Turonski, P.; Niculescu, I.; Osipenko, M.; Ostrovidov, A.I.; Pappalardo, L.L.; Park, K.; Park, S.; Pasyuk, E.; Phelps, E.; Phelps, W.; Phillips, J.J.; Pisano, S.; Pogorelko, O.; Price, J.W.; Prok, Y.; Protopopescu, D.; Procureur, S.; Puckett, A.J.R.; Raue, B.A.; Ripani, M.; Ritchie, B.G.; Rizzo, A.; Rossi, P.; Roy, P.; Sabati, F.; Salgado, C.; Schott, D.; Schumacher, R.A.; Seder, E.; Senderovich, I.; Sharabian, Y.G.; Simonyan, A.; Smith, G.D.; Sober, D.I.; Sokhan, D.; Stepanyan, S.S.; Strauch, S.; Sytnik, V.; Tang, W.; Tian, Ye; Ungaro, M.; Vlassov, A.V.; Voskanyan, H.; Voutier, E.; Walford, N.K.; Watts, D.; Wei, X.; Weinstein, L.B.; Yurov, M.; Zachariou, N.; Zana, L.; Zhang, J.; Zhao, Z.W.; Zonta, I.

    2014-08-01

    Exclusive neutral-pion electroproduction (ep-->e'p'pi0) was measured at Jefferson Lab with a 5.75-GeV electron beam and the CLAS detector. Differential cross sections d4sigma/dtdQ2dxBdphipi and structure functions sigmaT+epsilonsigmaL,sigmaTT and ?LT as functions of t were obtained over a wide range of Q2 and xB. The data are compared with Regge and handbag theoretical calculations. Analyses in both frameworks find that a large dominance of transverse processes is necessary to explain the experimental results. For the Regge analysis it is found that the inclusion of vector meson rescattering processes is necessary to bring the magnitude of the calculated and measured structure functions into rough agreement. In the handbag framework, there are two independent calculations, both of which appear to roughly explain the magnitude of the structure functions in terms of transversity generalized parton distributions.

  14. Neutron tubes

    DOE Patents [OSTI]

    Leung, Ka-Ngo (Hercules, CA); Lou, Tak Pui (Berkeley, CA); Reijonen, Jani (Oakland, CA)

    2008-03-11

    A neutron tube or generator is based on a RF driven plasma ion source having a quartz or other chamber surrounded by an external RF antenna. A deuterium or mixed deuterium/tritium (or even just a tritium) plasma is generated in the chamber and D or D/T (or T) ions are extracted from the plasma. A neutron generating target is positioned so that the ion beam is incident thereon and loads the target. Incident ions cause D-D or D-T (or T-T) reactions which generate neutrons. Various embodiments differ primarily in size of the chamber and position and shape of the neutron generating target. Some neutron generators are small enough for implantation in the body. The target may be at the end of a catheter-like drift tube. The target may have a tapered or conical surface to increase target surface area.

  15. Single crystal growth and characterization of the large-unit-cell compound Cu13Ba

    SciTech Connect (OSTI)

    Jesche, Anton; Budko, Serguei L.; Canfield, Paul C.

    2013-10-31

    Single crystals of Cu13Ba were successfully grown out of BaCu self flux. Temperature dependent magnetization, M (T ), electrical resistivity, ?(T)?(T), and specific heat, Cp(T)Cp(T), data are reported. Isothermal magnetization measurements, M(H)M(H), show clear de Haas-van Alphen oscillations at T = 2 K for applied fields as low as View the MathML source?0H=1T. An anomalous behavior of the magnetic susceptibility is observed up to T ? 50 K reflecting the effect of de Haas-van Alphen oscillations at fairly high temperatures. The field- and temperature-dependencies of the magnetization indicate the presence of diluted magnetic impurities with a concentration of the order of 0.01 at.%. Accordingly, the minimum and lower temperature rise observed in the electrical resistivity at and below T = 15 K is attributed to the Kondo-impurity effect.

  16. Thermoacoustic dosimetry of electron beam in extra field

    SciTech Connect (OSTI)

    Kalinichenko, A.I.; Kresnin, Yu.A.; Popov, G.F.

    1996-12-31

    The theoretical basis is elaborated for thermoacoustic dosimetry of electron beam by one-dimensional (1-D) thin target TT in extra thermal and electromagnetic fields. The basic equation joining the deposited energy distribution to the stress wave amplitude in the case when the generation coefficient is function of temperature and coordinate in material permits realizing nonlinear thermoacoustic dosimetry with regulated sensitivity. Some variants of joint employment of the thermoacoustic dosimeter and electromagnetic scanner/splitter are considered. The first variant consists in beam scanning along 1-D dosimeter body to create the moving thermoacoustic source. This regime may be used for dosimetry of long beams. The second variant consists in spectral decomposition of the beam in electromagnetic field before its directing to the dosimeter. Principle of operation for some termoelastic dosimeters on the base of 1-D TTs is considered.

  17. Search for a heavy vector boson decaying to two gluons in pp? collisions at ?s=1.96 TeV

    SciTech Connect (OSTI)

    Aaltonen, T.; Adelman, J.; lvarez Gonzlez, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Arisawa, T.; Artikov, A.; Asaadi, J.; Ashmanskas, W.; Auerbach, B.; Aurisano, A.; Azfar, F.; Badgett, W.; Bae, T.; Barbaro-Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Barria, P.; Bartos, P.; Bauce, M.; Bedeschi, F.; Behari, S.; Bellettini, G.; Bellinger, J.; Benjamin, D.; Beretvas, A.; Bhatti, A.; Bisello, D.; Bizjak, I.; Bland, K. R.; Blumenfeld, B.; Bocci, A.; Bodek, A.; Bortoletto, D.; Boudreau, J.; Boveia, A.; Brigliadori, L.; Bromberg, C.; Brucken, E.; Budagov, J.; Budd, H. S.; Burkett, K.; Busetto, G.; Bussey, P.; Buzatu, A.; Calamba, A.; Calancha, C.; Camarda, S.; Campanelli, M.; Campbell, M.; Canelli, F.; Carls, B.; Carlsmith, D.; Carosi, R.; Carrillo, S.; Carron, S.; Casal, B.; Casarsa, M.; Castro, A.; Catastini, P.; Cauz, D.; Cavaliere, V.; Cavalli-Sforza, M.; Cerri, A.; Cerrito, L.; Chen, Y. C.; Chertok, M.; Chiarelli, G.; Chlachidze, G.; Chlebana, F.; Cho, K.; Chokheli, D.; Chung, W. H.; Chung, Y. S.; Ciocci, M. A.; Clark, A.; Clarke, C.; Compostella, G.; Convery, M. E.; Conway, J.; Corbo, M.; Cordelli, M.; Cox, C. A.; Cox, D. J.; Crescioli, F.; Cuevas, J.; Culbertson, R.; Dagenhart, D.; dAscenzo, N.; Datta, M.; de Barbaro, P.; DellOrso, M.; Demortier, L.; Deninno, M.; Devoto, F.; dErrico, M.; Di Canto, A.; Di Ruzza, B.; Dittmann, J. R.; DOnofrio, M.; Donati, S.; Dong, P.; Dorigo, M.; Dorigo, T.; Ebina, K.; Elagin, A.; Eppig, A.; Erbacher, R.; Errede, S.; Ershaidat, N.; Eusebi, R.; Farrington, S.; Feindt, M.; Fernandez, J. P.; Field, R.; Flanagan, G.; Forrest, R.; Frank, M. J.; Franklin, M.; Freeman, J. C.; Funakoshi, Y.; Furic, I.; Gallinaro, M.; Garcia, J. E.; Garfinkel, A. F.; Garosi, P.; Gerberich, H.; Gerchtein, E.; Giagu, S.; Giakoumopoulou, V.; Giannetti, P.; Gibson, K.; Ginsburg, C. M.; Giokaris, N.; Giromini, P.; Giurgiu, G.; Glagolev, V.; Glenzinski, D.; Gold, M.; Goldin, D.; Goldschmidt, N.; Golossanov, A.; Gomez, G.; Gomez-Ceballos, G.; Goncharov, M.; Gonzlez, O.; Gorelov, I.; Goshaw, A. T.; Goulianos, K.; Grinstein, S.; Grosso-Pilcher, C.; Group, R. C.; Guimaraes da Costa, J.; Hahn, S. R.; Halkiadakis, E.; Hamaguchi, A.; Han, J. Y.; Happacher, F.; Hara, K.; Hare, D.; Hare, M.; Harr, R. F.; Hatakeyama, K.; Hays, C.; Heck, M.; Heinrich, J.; Herndon, M.; Hewamanage, S.; Hocker, A.; Hopkins, W.; Horn, D.; Hou, S.; Hughes, R. E.; Hurwitz, M.; Husemann, U.; Hussain, N.; Hussein, M.; Huston, J.; Introzzi, G.; Iori, M.; Ivanov, A.; James, E.; Jang, D.; Jayatilaka, B.; Jeon, E. J.; Jindariani, S.; Jones, M.; Joo, K. K.; Jun, S. Y.; Junk, T. R.; Kamon, T.; Karchin, P. E.; Kasmi, A.; Kato, Y.; Ketchum, W.; Keung, J.; Khader, M.; Khotilovich, V.; Kilminster, B.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, M. J.; Kim, S. B.; Kim, S. H.; Kim, Y. K.; Kim, Y. J.; Kimura, N.; Kirby, M.; Klimenko, S.; Knoepfel, K.; Kondo, K.; Kong, D. J.; Konigsberg, J.; Kotwal, A. V.; Kreps, M.; Kroll, J.; Krop, D.; Kruse, M.; Krutelyov, V.; Kuhr, T.; Kurata, M.; Kwang, S.; Laasanen, A. T.; Lami, S.; Lammel, S.; Lancaster, M.; Lander, R. L.; Lannon, K.; Lath, A.; Latino, G.; LeCompte, T.; Lee, E.; Lee, H. S.; Lee, J. S.; Lee, S. W.; Leo, S.; Leone, S.; Lewis, J. D.; Limosani, A.; Lin, C.-J.; Lindgren, M.; Lipeles, E.; Lister, A.; Litvintsev, D. O.; Liu, C.; Liu, H.; Liu, Q.; Liu, T.; Lockwitz, S.; Loginov, A.; Lucchesi, D.; Lueck, J.; Lujan, P.; Lukens, P.; Lungu, G.; Lys, J.; Lysak, R.; Madrak, R.; Maeshima, K.; Maestro, P.; Malik, S.; Manca, G.; Manousakis-Katsikakis, A.; Margaroli, F.; Marino, C.; Martnez, M.; Mastrandrea, P.; Matera, K.; Mattson, M. E.; Mazzacane, A.; Mazzanti, P.; McFarland, K. S.; McIntyre, P.; McNulty, R.; Mehta, A.; Mehtala, P.; Mesropian, C.; Miao, T.; Mietlicki, D.; Mitra, A.; Miyake, H.; Moed, S.; Moggi, N.; Mondragon, M. N.; Moon, C. S.; Moore, R.; Morello, M. J.; Morlock, J.; Movilla Fernandez, P.; Mukherjee, A.; Muller, Th.; Murat, P.; Mussini, M.; Nachtman, J.; Nagai, Y.; Naganoma, J.; Nakano, I.; Napier, A.; Nett, J.; Neu, C.; Neubauer, M. S.; Nielsen, J.; Nodulman, L.; Noh, S. Y.; Norniella, O.; Oakes, L.; Oh, S. H.; Oh, Y. D.; Oksuzian, I.; Okusawa, T.; Orava, R.; Ortolan, L.; Pagan Griso, S.; Pagliarone, C.; Palencia, E.; Papadimitriou, V.; Paramonov, A. A.; Patrick, J.; Pauletta, G.; Paulini, M.; Paus, C.; Pellett, D. E.; Penzo, A.; Phillips, T. J.; Piacentino, G.; Pianori, E.; Pilot, J.; Pitts, K.; Plager, C.; Pondrom, L.; Poprocki, S.; Potamianos, K.; Prokoshin, F.; Pranko, A.; Ptohos, F.; Punzi, G.; Rahaman, A.; Ramakrishnan, V.; Ranjan, N.; Rao, K.; Redondo, I.; Renton, P.; Rescigno, M.; Riddick, T.; Rimondi, F.; Ristori, L.; Robson, A.; Rodrigo, T.; Rodriguez, T.; Rogers, E.; Rolli, S.; Roser, R.; Ruffini, F.; Ruiz, A.; Russ, J.; Rusu, V.

    2012-12-01

    We present a search for a new heavy vector boson Z' that decays to gluons. Decays to on-shell gluons are suppressed, leading to a dominant decay mode of Z'?g*g. We study the case where the off-shell gluon g* converts to a pair of top quarks, leading to a final state of ttg. In a sample of events with exactly one charged lepton, large missing transverse momentum and at least five jets, corresponding to an integrated luminosity of 8.7 fb? collected by the CDF II detector, we find the data to be consistent with the standard model. We set upper limits on the production cross section times branching ratio of this chromophilic Z' at 95% confidence level from 300 to 40 fb for Z' masses ranging from 400 to 1000 GeV/c, respectively.

  18. Measurement of the ttbar production cross section in the all-jets final state in pp collisions at $\\sqrt{s}$=8 TeV

    SciTech Connect (OSTI)

    Khachatryan, Vardan

    2015-09-22

    The cross section for tt production in the all-jets final state is measured in pp collisions at a centre-of-mass energy of 8 TeV at the LHC with the CMS detector, in data corresponding to an integrated luminosity of 18.4 fb-1. The inclusive cross section is found to be 275.6 6.1 (stat) 37.8 (syst) 7.2 (lumi) pb. The normalized differential cross sections are measured as a function of the top quark transverse momenta, pT, and compared to predictions from quantum chromodynamics. The results are reported at detector, parton, and particle levels. In all cases, the measured top quark pT spectra are significantly softer than theoretical predictions.

  19. 13691641.tif

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    n o f f l c l a l F E R C - G e n e r a t e d P D F o f 2 0 0 5 1 0 1 7 - 0 0 3 7 R e c e i v e d b y F E R C O S E C 10/13/2005 in D o c k e t # : E L 0 5 - 1 4 5 - 0 0 0 WILUAMS October 13.2005 ORIGINAL PUBLIC -- CEIl R E M O V E D L~M, K ~r~.~x..~,w "cO.. ': '"" ,~N¢'5 O,~S:. ,a ~. PATRICK J MCCORMICK. III ~/. * .e I)IR}~C'I" DIAl. 202-778-~18.. s~.~.,f~.. , , . ~ I'MAll.: plflccol"m~kf~hul~tt:¢l¢;O.~ I.~1,~ ~ By H a n d Delivery Honorable Magalie R. Salas,

  20. Precise measurement of the top-quark mass from lepton+jets events at D0

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abazov, Victor Mukhamedovich

    2011-08-09

    We report a measurement of the mass of the top quark in lepton+jets final states of pp&3772; → tt̄ data corresponding to 2.6 fb-1 of integrated luminosity collected at the D0 experiment at the Fermilab Tevatron Collider. Using a matrix element method, we combine an in situ jet energy calibration with the standard jet energy scale derived in studies of Γ + jet and dijet events and employ a novel flavor-dependent jet response correction to measure a top-quark mass of mt = 176.01 ± 1.64 GeV. Combining this result with a previous result obtained on an independent data set, wemore »measure a top-quark mass of mt = 174.94 ± 1.49 GeV for a total integrated luminosity of 3.6 fb-1.« less

  1. Erratum: Measurement of the $$t \\bar{t}$$ production cross section in the dilepton channel in pp collisions at $$\\sqrt{s}$$ = 8 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chatrchyan, Serguei

    2014-02-05

    In this study, the top-antitop quark (tt¯) production cross section is measured in proton-proton collisions at √s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb–1. The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239±2 (stat.)±11 (syst.)±6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the predictionmore » of the standard model.« less

  2. Precise measurement of the top-quark mass from lepton+jets events at D0

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abazov, Victor Mukhamedovich

    2011-08-09

    We report a measurement of the mass of the top quark in lepton+jets final states of pp&3772; → tt̄ data corresponding to 2.6 fb-1 of integrated luminosity collected at the D0 experiment at the Fermilab Tevatron Collider. Using a matrix element method, we combine an in situ jet energy calibration with the standard jet energy scale derived in studies of Γ + jet and dijet events and employ a novel flavor-dependent jet response correction to measure a top-quark mass of mt = 176.01 ± 1.64 GeV. Combining this result with a previous result obtained on an independent data set, wemore » measure a top-quark mass of mt = 174.94 ± 1.49 GeV for a total integrated luminosity of 3.6 fb-1.« less

  3. Full simulation study of the top Yukawa coupling at the ILC at √s = 1 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Price, T.; Roloff, P.; Strube, J.; Tanabe, T.

    2015-07-04

    We present a study of the expected precision for the measurement of the top Yukawa coupling, yt, in e+e- collisions at a center-of-mass energy of 1 TeV. Independent analyses of tt-barH final states containing at least six hadronic jets are performed, based on detailed simulations of SiD and ILD, the two candidate detector concepts for the ILC. We estimate that a statistical precision on yt of 4.5 % can be obtained with an integrated luminosity of 1 ab-1 that is split equally between two configurations for the beam polarization P(e-,e+), (-80 %,+20 %) and (+80 %,-20 %). This estimate improvesmore » to 4 % if the 1 ab-1 sample is assumed to be fully in the P(e-,e+)=(-80 %,+20 %) configuration.« less

  4. DOE

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    /E/A- 0202( 83//Q J Sh or t-T er m En er gy O ut lo ok a to m Quar terly Proje ction s Febru ary 1983 Ene rgy Info rma tion Adm inist ratio n Was hing ton, D.C. t rt jrt .or t lor t lor t .lor t- ior t- ior t <.o rt ort . m .er m -Te rm -Te rm -Te rm -Te rm -Te rm -Te rm -Te rm -Te rm -Te rm -Te rm -Te rm -Te rm -T erm -T erm -T erm Nrm ue rgy En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg y En erg

  5. Precision measurement of the top-quark mass in lepton$+$jets final states

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abazov, Victor Mukhamedovich

    2015-06-04

    We measure the mass of the top quark in lepton þ jets final states using the full sample of pp¯ collision data collected by the D0 experiment in Run II of the Fermilab Tevatron Collider at √s = 1.96 TeV, corresponding to 9.7 fb-1 of integrated luminosity. We also use a matrix element technique that calculates the probabilities for each event to result from tt¯ production or background. Furthermore, the overall jet energy scale is constrained in situ by the mass of the W boson. We measure mt = 174.98 ± 0.76 GeV. As a result, this constitutes the mostmore » precise single measurement of the top-quark mass.« less

  6. Full simulation study of the top Yukawa coupling at the ILC at ?s = 1 TeV

    SciTech Connect (OSTI)

    Price, T.; Roloff, P.; Strube, J.; Tanabe, T.

    2015-07-04

    We present a study of the expected precision for the measurement of the top Yukawa coupling, yt, in e+e- collisions at a center-of-mass energy of 1 TeV. Independent analyses of tt-barH final states containing at least six hadronic jets are performed, based on detailed simulations of SiD and ILD, the two candidate detector concepts for the ILC. We estimate that a statistical precision on yt of 4.5 % can be obtained with an integrated luminosity of 1 ab-1 that is split equally between two configurations for the beam polarization P(e-,e+), (-80 %,+20 %) and (+80 %,-20 %). This estimate improves to 4 % if the 1 ab-1 sample is assumed to be fully in the P(e-,e+)=(-80 %,+20 %) configuration.

  7. Measurement of the W boson helicity in top quark decays using 5.4 fb⁻¹ of pp̄ collision data

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G. A.; et al

    2011-02-18

    We present a measurement of the helicity of the W boson produced in top quark decays using tt¯ decays in the l+jets and dilepton final states selected from a sample of 5.4 fb⁻¹ of collisions recorded using the D0 detector at the Fermilab Tevatron pp̄ collider. We measure the fractions of longitudinal and right-handed W bosons to be f₀=0.669±0.102[±0.078(stat.)±0.065(syst.)] and f₊=0.023±0.053[±0.041(stat.)±0.034(syst.)], respectively. This result is consistent at the 98% level with the standard model. A measurement with f₀ fixed to the value from the standard model yields f₊=0.010±0.037[±0.022(stat.)±0.030(syst.)].

  8. Measurement of the W boson helicity in top quark decays using 5.4 fb? of pp? collision data

    SciTech Connect (OSTI)

    Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G. A.; Ancu, L. S.; Aoki, M.; Arnoud, Y.; Arov, M.; Askew, A.; sman, B.; Atramentov, O.; Avila, C.; BackusMayes, J.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; Barberis, E.; Baringer, P.; Barreto, J.; Bartlett, J. F.; Bassler, U.; Bazterra, V.; Beale, S.; Bean, A.; Begalli, M.; Begel, M.; Belanger-Champagne, C.; Bellantoni, L.; Beri, S. B.; Bernardi, G.; Bernhard, R.; Bertram, I.; Besanon, M.; Beuselinck, R.; Bezzubov, V. A.; Bhat, P. C.; Bhatnagar, V.; Blazey, G.; Blessing, S.; Bloom, K.; Boehnlein, A.; Boline, D.; Bolton, T. A.; Boos, E. E.; Borissov, G.; Bose, T.; Brandt, A.; Brandt, O.; Brock, R.; Brooijmans, G.; Bross, A.; Brown, D.; Brown, J.; Bu, X. B.; Buehler, M.; Buescher, V.; Bunichev, V.; Burdin, S.; Burnett, T. H.; Buszello, C. P.; Calpas, B.; Camacho-Prez, E.; Carrasco-Lizarraga, M. A.; Casey, B. C. K.; Castilla-Valdez, H.; Chakrabarti, S.; Chakraborty, D.; Chan, K. M.; Chandra, A.; Chen, G.; Chevalier-Thry, S.; Cho, D. K.; Cho, S. W.; Choi, S.; Choudhary, B.; Christoudias, T.; Cihangir, S.; Claes, D.; Clutter, J.; Cooke, M.; Cooper, W. E.; Corcoran, M.; Couderc, F.; Cousinou, M.-C.; Croc, A.; Cutts, D.; ?wiok, M.; Das, A.; Davies, G.; De, K.; de Jong, S. J.; De La Cruz-Burelo, E.; Dliot, F.; Demarteau, M.; Demina, R.; Denisov, D.; Denisov, S. P.; Desai, S.; DeVaughan, K.; Diehl, H. T.; Diesburg, M.; Dominguez, A.; Dorland, T.; Dubey, A.; Dudko, L. V.; Duggan, D.; Duperrin, A.; Dutt, S.; Dyshkant, A.; Eads, M.; Edmunds, D.; Ellison, J.; Elvira, V. D.; Enari, Y.; Evans, H.; Evdokimov, A.; Evdokimov, V. N.; Facini, G.; Ferbel, T.; Fiedler, F.; Filthaut, F.; Fisher, W.; Fisk, H. E.; Fortner, M.; Fox, H.; Fuess, S.; Gadfort, T.; Garcia-Bellido, A.; Gavrilov, V.; Gay, P.; Geist, W.; Geng, W.; Gerbaudo, D.; Gerber, C. E.; Gershtein, Y.; Ginther, G.; Golovanov, G.; Goussiou, A.; Grannis, P. D.; Greder, S.; Greenlee, H.; Greenwood, Z. D.; Gregores, E. M.; Grenier, G.; Gris, Ph.; Grivaz, J.-F.; Grohsjean, A.; Grnendahl, S.; Grnewald, M. W.; Guo, F.; Gutierrez, G.; Gutierrez, P.; Haas, A.; Hagopian, S.; Haley, J.; Han, L.; Harder, K.; Harel, A.; Hauptman, J. M.; Hays, J.; Head, T.; Hebbeker, T.; Hedin, D.; Hegab, H.; Heinson, A. P.; Heintz, U.; Hensel, C.; Heredia-De La Cruz, I.; Herner, K.; Hesketh, G.; Hildreth, M. D.; Hirosky, R.; Hoang, T.; Hobbs, J. D.; Hoeneisen, B.; Hohlfeld, M.; Hossain, S.; Hubacek, Z.; Huske, N.; Hynek, V.; Iashvili, I.; Illingworth, R.; Ito, A. S.; Jabeen, S.; Jaffr, M.; Jain, S.; Jamin, D.; Jesik, R.; Johns, K.; Johnson, M.; Johnston, D.; Jonckheere, A.; Jonsson, P.; Joshi, J.; Juste, A.; Kaadze, K.; Kajfasz, E.; Karmanov, D.; Kasper, P. A.; Katsanos, I.; Kehoe, R.; Kermiche, S.; Khalatyan, N.; Khanov, A.; Kharchilava, A.; Kharzheev, Y. N.; Khatidze, D.; Kirby, M. H.; Kohli, J. M.; Kozelov, A. V.; Kraus, J.; Kumar, A.; Kupco, A.; Kur?a, T.; Kuzmin, V. A.; Kvita, J.; Lammers, S.; Landsberg, G.; Lebrun, P.; Lee, H. S.; Lee, S. W.; Lee, W. M.; Lellouch, J.; Li, L.; Li, Q. Z.; Lietti, S. M.; Lim, J. K.; Lincoln, D.; Linnemann, J.; Lipaev, V. V.; Lipton, R.; Liu, Y.; Liu, Z.; Lobodenko, A.; Lokajicek, M.; Love, P.; Lubatti, H. J.; Luna-Garcia, R.; Lyon, A. L.; Maciel, A. K. A.; Mackin, D.; Madar, R.; Magaa-Villalba, R.; Malik, S.; Malyshev, V. L.; Maravin, Y.; Martnez-Ortega, J.; McCarthy, R.; McGivern, C. L.; Meijer, M. M.; Melnitchouk, A.; Menezes, D.; Mercadante, P. G.; Merkin, M.; Meyer, A.; Meyer, J.; Mondal, N. K.; Muanza, G. S.; Mulhearn, M.; Nagy, E.; Naimuddin, M.; Narain, M.; Nayyar, R.; Neal, H. A.; Negret, J. P.; Neustroev, P.; Novaes, S. F.; Nunnemann, T.; Obrant, G.; Orduna, J.; Osman, N.; Osta, J.; Otero y Garzn, G. J.; Owen, M.; Padilla, M.; Pangilinan, M.; Parashar, N.; Parihar, V.; Park, S. K.; Parsons, J.; Partridge, R.; Parua, N.; Patwa, A.; Penning, B.; Perfilov, M.; Peters, K.; Peters, Y.; Petrillo, G.; Ptroff, P.; Piegaia, R.; Piper, J.; Pleier, M.-A.; Podesta-Lerma, P. L. M.; Podstavkov, V.M.; Pol, M.-E.; Polozov, P.; Popov, A. V.; Prewitt, M.; Price, D.; Protopopescu, S.; Qian, J.; Quadt, A.; Quinn, B.; Rangel, M. S.; Ranjan, K.; Ratoff, P. N.; Razumov, I.; Renkel, P.; Rich, P.; Rijssenbeek, M.; Ripp-Baudot, I.; Rizatdinova, F.; Rominsky, M.; Royon, C.; Rubinov, P.; Ruchti, R.; Safronov, G.; Sajot, G.; Snchez-Hernndez, A.; Sanders, M. P.; Sanghi, B.; Santos, A. S.; Savage, G.; Sawyer, L.; Scanlon, T.; Schamberger, R. D.; Scheglov, Y.; Schellman, H.; Schliephake, T.; Schlobohm, S.; Schwanenberger, C.; Schwienhorst, R.; Sekaric, J.; Severini, H.; Shabalina, E.; Shary, V.; Shchukin, A. A.; Shivpuri, R. K.; Simak, V.; Sirotenko, V.; Skubic, P.; Slattery, P.; Smirnov, D.

    2011-02-18

    We present a measurement of the helicity of the W boson produced in top quark decays using tt decays in the l+jets and dilepton final states selected from a sample of 5.4 fb? of collisions recorded using the D0 detector at the Fermilab Tevatron pp? collider. We measure the fractions of longitudinal and right-handed W bosons to be f?=0.6690.102[0.078(stat.)0.065(syst.)] and f?=0.0230.053[0.041(stat.)0.034(syst.)], respectively. This result is consistent at the 98% level with the standard model. A measurement with f? fixed to the value from the standard model yields f?=0.0100.037[0.022(stat.)0.030(syst.)].

  9. DOE Hydrogen Transition Analysis Workshop: Final Attendees List

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    U.S. Department of Energy - Washington, DC January 26, 2006 F FI IN NA AL L A AT TT TE EN ND DE EE ES S L LI IS ST T Name Company E-mail Arlene Anderson U.S. DOE-HFCIT Arlene.anderson@hq.doe.gov Klaus Bonhoff DaimlerChrysler AG klaus.bonhoff@daimlerchrysler.com Ed Casey ConocoPhillips ed.casey@ConocoPhillips.com Steve Chalk U.S. DOE-HFCIT schalk@ee.doe.gov Tan-Ping Chen Nexant tpchen@nexant.com Peter Devlin U.S. DOE-HFCIT peter.devlin@ee.doe.gov K. G. Duleep Energy and Environmental Analysis,

  10. RW

    Office of Legacy Management (LM)

    i, tt 3)'s1 RW Prepared by Oak Ridge Associated Universities I Prepared for Division of I Remedial Action I erolels U.S. DePartment i of Energy COMPREHENSIVE RADIOLOGICAL SURVEY OFF.SITE PROPERTY N NORTH NIAGARA FALLS STORAGE SITE LEWlsToN, NEW YORK A. J. BOERNER R a d i o l o g i c a l S i t e A s s e s s m e n t P r o g r a m M a n p o w e r E d u c a t i o n , R e s e a r c h , a n d T r a i n i n g D i v i s i o n FINAL REPORT May 1984 COMPREIIENSIVE RADIOLOGICAI SURVEY OFF-SITE PROPERTY

  11. OAK FMSXSE

    Office of Legacy Management (LM)

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    Office of Legacy Management (LM)

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  13. AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

    National Nuclear Security Administration (NNSA)

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  14. Search for a heavy vector boson decaying to two gluons in pp̄ collisions at √s=1.96 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.; Adelman, J.; Álvarez González, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; et al

    2012-12-05

    We present a search for a new heavy vector boson Z' that decays to gluons. Decays to on-shell gluons are suppressed, leading to a dominant decay mode of Z'→g*g. We study the case where the off-shell gluon g* converts to a pair of top quarks, leading to a final state of tt¯g. In a sample of events with exactly one charged lepton, large missing transverse momentum and at least five jets, corresponding to an integrated luminosity of 8.7 fb⁻¹ collected by the CDF II detector, we find the data to be consistent with the standard model. We set upper limitsmore » on the production cross section times branching ratio of this chromophilic Z' at 95% confidence level from 300 to 40 fb for Z' masses ranging from 400 to 1000 GeV/c², respectively.« less

  15. LEd:JCD

    Office of Legacy Management (LM)

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    Office of Legacy Management (LM)

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  17. NATIONAL LEAD COMPANY OF OHIO

    Office of Legacy Management (LM)

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    Office of Legacy Management (LM)

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    Office of Legacy Management (LM)

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  20. Impacts of side chain and excess energy on the charge photogeneration dynamics of low-bandgap copolymer-fullerene blends

    SciTech Connect (OSTI)

    Huo, Ming-Ming Zhang, Jian-Ping E-mail: hjhzlz@iccas.ac.cn; Department of Chemistry, Renmin University of China, Beijing 100872 ; Hu, Rong Xing, Ya-Dong Liu, Yu-Chen Ai, Xi-Cheng; Hou, Jian-Hui E-mail: hjhzlz@iccas.ac.cn

    2014-02-28

    Primary charge photogeneration dynamics in neat and fullerene-blended films of a pair of alternating benzo[1,2-b:4,5-b{sup ?}]dithiophene (BDT) and thieno[3,4-b]thiophene (TT) copolymers are comparatively studied by using near-infrared, time-resolved absorption (TA) spectroscopy under low excitation photon fluence. PBDTTT-E and PBDTTT-C, differed merely in the respective TT-substituents of ester (-E) and carbonyl (-C), show distinctly different charge photogeneration dynamics. The pair of neat PBDTTT films show exciton lifetimes of ?0.1 ns and fluorescence quantum yields below 0.2%, as well as prominent excess-energy enhanced exciton dissociation. In addition, PBDTTT-C gives rise to >50% higher P{sup +} yield than PBDTTT-E does irrespective to the excitation photon energy. Both PBDTTT-E:PC{sub 61}BM and PBDTTT-C:PC{sub 61}BM blends show subpicosecond exciton lifetimes and nearly unitary fluorescence quenching efficiency and, with respect to the former blend, the latter one shows substantially higher branching ratio of charge separated (CS) state over interfacial charge transfer (ICT) state, and hence more efficient exciton-to-CS conversion. For PBDTTT-C:PC{sub 61}BM, the ultrafast charge dynamics clearly show the processes of ICT-CS interconversion and P{sup +} migration, which are possibly influenced by the ICT excess energy. However, such processes are relatively indistinctive in the case of PBDTTT-E:PC{sub 61}BM. The results strongly prove the importance of ICT dissociation in yielding free charges, and are discussed in terms of the film morphology and the precursory solution-phase macromolecular conformation.

  1. ATM Polymorphisms Predict Severe Radiation Pneumonitis in Patients With Non-Small Cell Lung Cancer Treated With Definitive Radiation Therapy

    SciTech Connect (OSTI)

    Xiong, Huihua; Liao, Zhongxing; Liu, Zhensheng; Xu, Ting; Wang, Qiming; Liu, Hongliang; Komaki, Ritsuko; Gomez, Daniel; Wang, Li-E; Wei, Qingyi

    2013-03-15

    Purpose: The ataxia telangiectasia mutated (ATM) gene mediates detection and repair of DNA damage. We investigated associations between ATM polymorphisms and severe radiation-induced pneumonitis (RP). Methods and Materials: We genotyped 3 potentially functional single nucleotide polymorphisms (SNPs) of ATM (rs1801516 [D1853N/5557G>A], rs189037 [-111G>A] and rs228590) in 362 patients with non-small cell lung cancer (NSCLC), who received definitive (chemo)radiation therapy. The cumulative severe RP probabilities by genotypes were evaluated using the Kaplan-Meier analysis. The associations between severe RP risk and genotypes were assessed by both logistic regression analysis and Cox proportional hazard model with time to event considered. Results: Of 362 patients (72.4% of non-Hispanic whites), 56 (15.5%) experienced grade ≥3 RP. Patients carrying ATM rs189037 AG/GG or rs228590 TT/CT genotypes or rs189037G/rs228590T/rs1801516G (G-T-G) haplotype had a lower risk of severe RP (rs189037: GG/AG vs AA, adjusted hazard ratio [HR] = 0.49, 95% confidence interval [CI], 0.29-0.83, P=.009; rs228590: TT/CT vs CC, HR=0.57, 95% CI, 0.33-0.97, P=.036; haplotype: G-T-G vs A-C-G, HR=0.52, 95% CI, 0.35-0.79, P=.002). Such positive findings remained in non-Hispanic whites. Conclusions: ATM polymorphisms may serve as biomarkers for susceptibility to severe RP in non-Hispanic whites. Large prospective studies are required to confirm our findings.

  2. The polymorphisms of P53 codon 72 and MDM2 SNP309 and renal cell carcinoma risk in a low arsenic exposure area

    SciTech Connect (OSTI)

    Huang, Chao-Yuan; Department of Urology, National Taiwan University Hospital, College of Medicine National Taiwan University, Taipei, Taiwan ; Su, Chien-Tien; Chu, Jan-Show; Department of Pathology, College of Medicine, Taipei Medical University, Taipei, Taiwan ; Huang, Shu-Pin; Pu, Yeong-Shiau; Yang, Hsiu-Yuan; Chung, Chi-Jung; Department of Health Risk Management, College of Public Health, China Medical University, Taichung, Taiwan ; Wu, Chia-Chang; Department of Urology, Taipei Medical Universtiy-Shuang Ho Hospital, Taipei, Taiwan ; Hsueh, Yu-Mei; Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan

    2011-12-15

    Our recent study demonstrated the increased risk of renal cell carcinoma (RCC) associated with high urinary total arsenic levels among people living in a low arsenic exposure area. Genomic instability is important in arsenic carcinogenesis. This study evaluated the relationship between the polymorphisms of p53, p21, and MDM2, which plays a role in gene stability, and the arsenic-related RCC risk. Here, we found that p53 Pro/Pro genotype and MDM2 SNP309 GG genotype significantly increased RCC risk compared to the p53 Arg/Arg genotype and MDM2 SNP309 TT genotype. RCC patients with the p53Arg/Arg genotype had a signicantly low percentage of inorganic arsenic, a low percentage of monomethylarsonic acid (MMA), and a high percentage of dimethylarsinic acid (DMA), which indicates efcient arsenic methylation capacity. Subjects with the p53 Arg/Pro + Pro/Pro genotype or MDM2 SNP309 TG + GG genotype, in conjunction with high urinary total arsenic ({>=} 14.02 {mu}g/L), had a signicantly higher RCC risk than those with the p53 Arg/Arg or MDM2 SNP309 TT genotypes and low urinary total arsenic. Taken together, this is the first study to show that a variant genotype of p53 Arg{sup 72}Pro or MDM2 SNP309 may modify the arsenic-related RCC risk even in a non-obvious arsenic exposure area. -- Highlights: Black-Right-Pointing-Pointer Subjects with p53 Pro/Pro or MDM2 GG genotype significantly increased RCC risk. Black-Right-Pointing-Pointer A significant multiplicative joint effect of p53 and p21 on RCC risk. Black-Right-Pointing-Pointer RCC patients with p53 Arg/Arg genotype had efficient arsenic methylation capacity. Black-Right-Pointing-Pointer Joint effect of p53 or MDM2 genotype and high urinary total arsenic on RCC risk.

  3. Evaluation of the dosimetric impact of applying flattening filter-free beams in intensity-modulated radiotherapy for early-stage upper thoracic carcinoma of oesophagus

    SciTech Connect (OSTI)

    Zhang, Wuzhe; Lin, Zhixiong; Yang, Zhining; Fang, Weisheng; Lai, Peibo; Lu, Jiayang; Wu, Vincent WC

    2015-06-15

    Flattening filter-free (FFF) radiation beams have recently become clinically available on modern linear accelerators in radiation therapy. This study aimed to evaluate the dosimetric impact of using FFF beams in intensity-modulated radiotherapy (IMRT) for early-stage upper thoracic oesophageal cancer. Eleven patients with primary stage upper thoracic oesophageal cancer were recruited. For each patient, two IMRT plans were computed using conventional beams (Con-P) and FFF beams (FFF-P), respectively. Both plans employed a five-beam arrangement and were prescribed with 64 Gy to (planning target volume) PTV1 and 54 Gy to PTV2 in 32 fractions using 6 MV photons. The dose parameters of the target volumes and organs at risks (OARs), and treatment parameters including the monitor units (MU) and treatment time (TT) for Con-P and FFF-P were recorded and compared. The mean D{sub 5} of PTV1 and PTV2 were higher in FFF-P than Con-P by 0.4 Gy and 0.3 Gy, respectively. For the OARs, all the dose parameters did not show significant difference between the two plans except the mean V{sub 5} and V{sub 10} of the lung in which the FFF-P was lower (46.7% vs. 47.3% and 39.1% vs. 39.6%, respectively). FFF-P required 54% more MU but 18.4% less irradiation time when compared to Con-P. The target volume and OARs dose distributions between the two plans were comparable. However, FFF-P was more effective in sparing the lung from low dose and reduced the mean TT compared with Con-P. Long-term clinical studies are suggested to evaluate the radiobiological effects of FFF beams.

  4. MicroRNA Regulation of Ionizing Radiation-Induced Premature Senescence

    SciTech Connect (OSTI)

    Wang Yong; Scheiber, Melissa N.; Neumann, Carola; Calin, George A.; Zhou Daohong

    2011-11-01

    Purpose: MicroRNAs (miRNAs) have emerged as critical regulators of many cellular pathways. Ionizing radiation (IR) exposure causes DNA damage and induces premature senescence. However, the role of miRNAs in IR-induced senescence has not been well defined. Thus, the purpose of this study was to identify and characterize senescence-associated miRNAs (SA-miRNAs) and to investigate the role of SA-miRNAs in IR-induced senescence. Methods and Materials: In human lung (WI-38) fibroblasts, premature senescence was induced either by IR or busulfan (BU) treatment, and replicative senescence was accomplished by serial passaging. MiRNA microarray were used to identify SA-miRNAs, and real-time reverse transcription (RT)-PCR validated the expression profiles of SA-miRNAs in various senescent cells. The role of SA-miRNAs in IR-induced senescence was characterized by knockdown of miRNA expression, using anti-miRNA oligonucleotides or by miRNA overexpression through the transfection of pre-miRNA mimics. Results: We identified eight SA-miRNAs, four of which were up-regulated (miR-152, -410, -431, and -493) and four which were down-regulated (miR-155, -20a, -25, and -15a), that are differentially expressed in both prematurely senescent (induced by IR or BU) and replicatively senescent WI-38 cells. Validation of the expression of these SA-miRNAs indicated that down-regulation of miR-155, -20a, -25, and -15a is a characteristic miRNA expression signature of cellular senescence. Functional analyses revealed that knockdown of miR-155 or miR-20a, but not miR-25 or miR-15a, markedly enhanced IR-induced senescence, whereas ectopic overexpression of miR-155 or miR-20a significantly inhibited senescence induction. Furthermore, our studies indicate that miR-155 modulates IR-induced senescence by acting downstream of the p53 and p38 mitogen-activated protein kinase (MAPK) pathways and in part via regulating tumor protein 53-induced nuclear protein 1 (TP53INP1) expression. Conclusion: Our results suggest that SA-miRNAs are involved in the regulation of IR-induced senescence, so targeting these miRNAs may be a novel approach for modulating cellular response to radiation exposure.

  5. Photonics Research and Development

    SciTech Connect (OSTI)

    Pookpanratana, Sujitra; Shlayan, Neveen; Venkat, Rama; Das, Bisjwajit; Boehm, Bob; Heske, Clemens; Fraser, Donald; Moustakas, Theodore

    2010-01-15

    During the period August 2005 through October 2009, the UNLV Research Foundation (UNLVRF), a non-profit affiliate of the University of Nevada, Las Vegas (UNLV), in collaboration with UNLV??s Colleges of Science and Engineering; Boston University (BU); Oak Ridge National Laboratory (ORNL); and Sunlight Direct, LLC, has managed and conducted a diverse and comprehensive research and development program focused on light-emitting diode (LED) technologies that provide significantly improved characteristics for lighting and display applications. This final technical report provides detailed information on the nature of the tasks, the results of the research, and the deliverables. It is estimated that about five percent of the energy used in the nation is for lighting homes, buildings and streets, accounting for some 25 percent of the average home??s electric bill. However, the figure is significantly higher for the commercial sector. About 60 percent of the electricity for businesses is for lighting. Thus replacement of current lighting with solid-state lighting technology has the potential to significantly reduce this nation??s energy consumption ?? by some estimates, possibly as high as 20%. The primary objective of this multi-year R&D project has been to develop and advance lighting technologies to improve national energy conversion efficiencies; reduce heat load; and significantly lower the cost of conventional lighting technologies. The UNLVRF and its partners have specifically focused these talents on (1) improving LED technologies; (2) optimizing hybrid solar lighting, a technology which potentially offers the benefits of blending natural with artificial lighting systems, thus improving energy efficiency; and (3) building a comprehensive academic infrastructure within UNLV which concentrates on photonics R&D. Task researchers have reported impressive progress in (1) the development of quantum dot laser emitting diodes (QDLEDs) which will ultimately improve energy efficiency and lower costs for display and lighting applications (UNLV College of Engineering); (2) advancing green LED technology based on the Indium-Gallium-Nitride system (BU), thus improving conversion efficiencies; (3) employing unique state-of-the-art X-ray, electron and optical spectroscopies with microscopic techniques to learn more about the electronic structure of materials and contacts in LED devices (UNLV College of Science); (4) establishing a UNLV Display Lighting Laboratory staffed with a specialized team of academic researchers, students and industrial partners focused on identifying and implementing engineering solutions for lighting display-related problems; and (5) conducting research, development and demonstration for HSL essential to the resolution of technological barriers to commercialization.

  6. Experimental Systems-Biology Approaches for Clostridia-Based Bioenergy Production

    SciTech Connect (OSTI)

    Papoutsakis, Elefterios

    2015-04-30

    This is the final project report for project "Experimental Systems-Biology Approaches for Clostridia-Based Bioenergy Production" for the funding period of 9/1/12 to 2/28/2015 (three years with a 6-month no-cost extension) OVERVIEW AND PROJECT GOALS The bottleneck of achieving higher rates and titers of toxic metabolites (such as solvents and carboxylic acids that can used as biofuels or biofuel precursors) can be overcome by engineering the stress response system. Thus, understanding and modeling the response of cells to toxic metabolites is a problem of great fundamental and practical significance. In this project, our goal is to dissect at the molecular systems level and build models (conceptual and quantitative) for the stress response of C. acetobutylicum (Cac) to its two toxic metabolites: butanol (BuOH) and butyrate (BA). Transcriptional (RNAseq and microarray based), proteomic and fluxomic data and their analysis are key requirements for this goal. Transcriptional data from mid-exponential cultures of Cac under 4 different levels of BuOH and BA stress was obtained using both microarrays (Papoutsakis group) and deep sequencing (RNAseq; Meyers and Papoutsakis groups). These two sets of data do not only serve to validate each other, but are also used for identification of stress-induced changes in transcript levels, small regulatory RNAs, & in transcriptional start sites. Quantitative proteomic data (Lee group), collected using the iTRAQ technology, are essential for understanding of protein levels and turnover under stress and the various protein-protein interactions that orchestrate the stress response. Metabolic flux changes (Antoniewicz group) of core pathways, which provide important information on the re-allocation of energy and carbon resources under metabolite stress, were examined using 13C-labelled chemicals. Omics data are integrated at different levels and scales. At the metabolic-pathway level, omics data are integrated into a 2nd generation genome-scale model (GSM) (Maranas group). Omics data are also integrated using bioinformatics (Wu and Huang group), whereby regulatory details of gene and protein expression, protein-protein interactions and metabolic flux regulation are incorporated. The PI (Papoutsakis) facilitated project integration through monthly meeting and reports, conference calls, and collaborative manuscript preparation. The five groups collaborated extensively and made a large number of presentations in national and international meetings. It has also published several papers, with several more in the preparation stage. Several PhD, MS and postdoctoral students were trained as part of this collaborative and interdisciplinary project.

  7. Electrochemical Oxidation of H? Catalyzed by Ruthenium Hydride Complexes Bearing P?N? Ligands With Pendant Amines as Proton Relays

    SciTech Connect (OSTI)

    Liu, Tianbiao L.; Rakowski DuBois, Mary; DuBois, Daniel L.; Bullock, R. Morris

    2014-01-01

    Two Ru hydride complexes (Cp*Ru(PPh?NBn?)H, (1-H) and Cp*Ru(PtBu?NBn?)H, (2-H) supported by cyclic PR?NR'? ligands (Cp* = n?-C?Me?; 1,5-diaza-3,7-diphosphacyclooctane, where R = Ph or tBu and R' = Bn) have been synthesized and fully characterized. Both complexes are demonstrated to be electrocatalysts for oxidation of H? (1 atm, 22 C) in the presence of external base, DBU (1,8-diazabicyclo[5.4.0]undec-7-ene). The turnover frequency of 2-H is 1.2 s-1, with an overpotential at Ecat/2 of 0.45 V, while catalysis by 1-H has a turnover frequency of 0.6 s-1 and an overpotential of 0.6 V at Ecat/2. Addition of H?O facilitates oxidation of H? by 2-H and increases its turnover frequency to 1.9 s-1 while , H?O slows down the catalysis by 1-H. The different effects of H?O for 1-H and 2-H are ascribed to different binding affinities of H?O to the Ru center of the corresponding unsaturated species, [Cp*Ru(PPh?NBn?)]+ and [Cp*Ru(PPh?NBn?)]+. In addition, studies of Cp*Ru(dmpm)H (where dmpm = bis(dimethylphosphino)methane), a control complex lacking pendent amines in its diphosphine ligand, confirms the critical roles of the pendent amines of P?N? ligands for oxidation of H?. We thank the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences, for supporting initial parts of the work. Current work is supported by the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy.

  8. Qualification of the Nippon Instrumentation for use in Measuring Mercury at the Defense Waste Processing Facility

    SciTech Connect (OSTI)

    Edwards, T.; Mahannah, R.

    2011-07-05

    The Nippon Mercury/RA-3000 system installed in 221-S M-14 has been qualified for use. The qualification was a side-by-side comparison of the Nippon Mercury/RA-3000 system with the currently used Bacharach Mercury Analyzer. The side-by-side testing included standards for instrument calibration verifications, spiked samples and unspiked samples. The standards were traceable back to the National Institute of Standards and Technology (NIST). The side-by-side work included the analysis of Sludge Receipt and Adjustment Tank (SRAT) Receipt, SRAT Product, and Slurry Mix Evaporator (SME) samples. With the qualification of the Nippon Mercury/RA-3000 system in M-14, the DWPF lab will be able to perform a head to head comparison of a second Nippon Mercury/RA-3000 system once the system is installed. The Defense Waste Processing Facility (DWPF) analyzes receipt and product samples from the Sludge Receipt and Adjustment Tank (SRAT) to determine the mercury (Hg) concentration in the sludge slurry. The SRAT receipt is typically sampled and analyzed for the first ten SRAT batches of a new sludge batch to obtain an average Hg concentration. This average Hg concentration is then used to determine the amount of steam stripping required during the concentration/reflux step of the SRAT cycle to achieve a less than 0.6 wt% Hg in the SRAT product solids. After processing is complete, the SRAT product is sampled and analyzed for mercury to ensure that the mercury concentration does not exceed the 0.45 wt% limit in the Slurry Mix Evaporator (SME). The DWPF Laboratory utilizes Bacharach Analyzers to support these Hg analyses at this facility. These analyzers are more than 10 years old, and they are no longer supported by the manufacturer. Due to these difficulties, the Bacharach Analyzers are to be replaced by new Nippon Mercury/RA-3000 systems. DWPF issued a Technical Task Request (TTR) for the Savannah River National Laboratory (SRNL) to assist in the qualification of the new systems. SRNL prepared a task technical and quality assurance (TT&QA) plan that outlined the activities that are necessary and sufficient to meet the objectives of the TTR. In addition, TT&QA plan also included a test plan that provided guidance to the DWPF Lab in collecting the data needed to qualify the new Nippon Mercury/RA-3000 systems.

  9. Separated response functions in exclusive, forward π± electroproduction on deuterium

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Huber, G. M.; Blok, H. P.; Butuceanu, C.; Gaskell, D.; Horn, T.; Mack, D. J.; Abbott, D.; Aniol, K.; Anklin, H.; Armstrong, C.; et al

    2015-01-07

    Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in π⁻ and π⁺ electroproduction are particularly informative. Ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method:more » Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q2 values of 0.6, 1.0, 1.6 GeV2 at W=1.95 GeV, and Q2=2.45 GeV2 at W=2.22 GeV. There was significant coverage in Φ And ϵ, which allowed separation of σL,T,LT,TT. Results: σL shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, σT is much flatter versus t. The longitudinal/transverse ratios evolve with Q2 and t, and at the highest Q2=2.45 GeV2 show a slight enhancement for π⁻ Production compared to π⁺. The π⁻/π⁺+ ratio for transverse photons exhibits only a small Q2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The σTT/σT ratio also drops rapidly with Q2, qualitatively consistent with s-channel helicity conservation. The π⁻/π⁺ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics.« less

  10. Separated response functions in exclusive, forward ? electroproduction on deuterium

    SciTech Connect (OSTI)

    Huber, G. M.; Blok, H. P.; Butuceanu, C.; Gaskell, D.; Horn, T.; Mack, D. J.; Abbott, D.; Aniol, K.; Anklin, H.; Armstrong, C.; Arrington, J.; Assamagan, K.; Avery, S.; Baker, O. K.; Barrett, B.; Beise, E. J.; Bochna, C.; Boeglin, W.; Brash, E. J.; Breuer, H.; Chang, C. C.; Chant, N.; Christy, M. E.; Dunne, J.; Eden, T.; Ent, R.; Fenker, H.; Gibson, E. F.; Gilman, R.; Gustafsson, K.; Hinton, W.; Holt, R. J.; Jackson, H.; Jin, S.; Jones, M. K.; Keppel, C. E.; Kim, P. H.; Kim, W.; King, P. M.; Klein, A.; Koltenuk, D.; Kovaltchouk, V.; Liang, M.; Liu, J.; Lolos, G. J.; Lung, A.; Margaziotis, D. J.; Markowitz, P.; Matsumura, A.; McKee, D.; Meekins, D.; Mitchell, J.; Miyoshi, T.; Mkrtchyan, H.; Mueller, B.; Niculescu, G.; Niculescu, I.; Okayasu, Y.; Pentchev, L.; Perdrisat, C.; Pitz, D.; Potterveld, D.; Punjabi, V.; Qin, L. M.; Reimer, P. E.; Reinhold, J.; Roche, J.; Roos, P. G.; Sarty, A.; Shin, I. K.; Smith, G. R.; Stepanyan, S.; Tang, L. G.; Tadevosyan, V.; Tvaskis, V.; van der Meer, R. L. J.; Vansyoc, K.; Van Westrum, D.; Vidakovic, S.; Volmer, J.; Vulcan, W.; Warren, G.; Wood, S. A.; Xu, C.; Yan, C.; Zhao, W. -X.; Zheng, X.; Zihlmann, B.

    2015-01-07

    Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in ?? and ?? electroproduction are particularly informative. Ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q2 values of 0.6, 1.0, 1.6 GeV2 at W=1.95 GeV, and Q2=2.45 GeV2 at W=2.22 GeV. There was significant coverage in ? And ?, which allowed separation of ?L,T,LT,TT. Results: ?L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, ?T is much flatter versus t. The longitudinal/transverse ratios evolve with Q2 and t, and at the highest Q2=2.45 GeV2 show a slight enhancement for ?? Production compared to ??. The ??/??+ ratio for transverse photons exhibits only a small Q2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The ?TT/?T ratio also drops rapidly with Q2, qualitatively consistent with s-channel helicity conservation. The ??/?? ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics.

  11. Acute Normal Tissue Reactions in Head-and-Neck Cancer Patients Treated With IMRT: Influence of Dose and Association With Genetic Polymorphisms in DNA DSB Repair Genes

    SciTech Connect (OSTI)

    Werbrouck, Joke Ruyck, Kim de; Duprez, Frederic; Veldeman, Liv; Claes, Kathleen; Eijkeren, Marc van; Boterberg, Tom; Willems, Petra; Vral, Anne; Neve, Wilfried de; Thierens, Hubert

    2009-03-15

    Purpose: To investigate the association between dose-related parameters and polymorphisms in DNA DSB repair genes XRCC3 (c.-1843A>G, c.562-14A>G, c.722C>T), Rad51 (c.-3429G>C, c.-3392G>T), Lig4 (c.26C>T, c.1704T>C), Ku70 (c.-1310C>G), and Ku80 (c.2110-2408G>A) and the occurrence of acute reactions after radiotherapy. Materials and Methods: The study population consisted of 88 intensity-modulated radiation therapy (IMRT)-treated head-and-neck cancer patients. Mucositis, dermatitis, and dysphagia were scored using the Common Terminology Criteria (CTC) for Adverse Events v.3.0 scale. The population was divided into a CTC0-2 and CTC3+ group for the analysis of each acute effect. The influence of the dose on critical structures was analyzed using dose-volume histograms. Genotypes were determined by polymerase chain reaction (PCR) combined with restriction fragment length polymorphism or PCR-single base extension assays. Results: The mean dose (D{sub mean}) to the oral cavity and constrictor pharyngeus (PC) muscles was significantly associated with the development of mucositis and dysphagia, respectively. These parameters were considered confounding factors in the radiogenomics analyses. The XRCC3c.722CT/TT and Ku70c.-1310CG/GG genotypes were significantly associated with the development of severe dysphagia (CTC3+). No association was found between the investigated polymorphisms and the development of mucositis or dermatitis. A risk analysis model for severe dysphagia, which was developed based on the XRCC3c.722CT/TT and Ku70c.-1310CG/GG genotypes and the PC dose, showed a sensitivity of 78.6% and a specificity of 77.6%. Conclusions: The XRCC3c.722C>T and Ku70c.-1310C>G polymorphisms as well as the D{sub mean} to the PC muscles were highly associated with the development of severe dysphagia after IMRT. The prediction model developed using these parameters showed a high sensitivity and specificity.

  12. Alkane functionalization at ([mu]-Oxo)diiron(III) centers

    SciTech Connect (OSTI)

    Leising, R.A.; Kim, J.; Perez, M.A.; Que, L. Jr. )

    1993-10-20

    The reactivity of ([mu]-oxo)diferric complexes with [sup t]BuOOH (TBHP) for the functionalization of alkanes in CH[sub 3]CN has been investigated as part of our efforts to model dinuclear sites in nonheme iron enzymes. [Fe[sub 2](TPA)[sub 2]O(OAc)](CIO[sub 4])[sub 3] (1) (TPA = tris(2-pyridylmethyl)amine, OAc = acetate) is an efficient catalyst for cyclohexane oxidation, affording cyclohexanol (A, 9 equiv), cyclohexanone (K, 11 equiv), and (tert-butylperoxy)cyclohexane (P, 16 equiv) in 0.25 h at ambient temperature and pressure under an argon atmosphere. The catalyst is remarkably robust, as indicated by the [sup 1]H NMR and UV-vis spectra of the reaction mixture during the catalytic reaction and by its ability to maintain its turnover efficiency with subsequent additions of oxidant. The catalytic mechanism for TBHP utilization was explored by observing the effects of varying the tripodal ligands on the ([mu]-oxo)([mu]-carboxylato)diferric catalysts and varying the bridge on Fe[sub 2]O(TPA)[sub 2] catalysts. The (A + K)/P ratio increased as the ligands became more electron donating. Solvent also played an important role in determining the partitioning of products between A + K and P, with benzonitrile favoring hydroxylated products at the expense of P and pyridine having the opposite effect. 49 refs., 2 figs., 3 tabs.

  13. 3H Cross Section

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3H(α, X) (Current as of 02/01/2016) NSR Reaction Eα (MeV) Cross Section File X4 Dataset Date Added 2001TO07 3H(α, γ): deduced S-factor Ecm = 0.05 - 0.8 X4 01/09/2012 1994BR25 3H(α, γ): deduced σ and S-factor Ecm = 50 - 1200 keV X4 01/09/2012 1987SC18 3H(α, γ): σ, deduced S-factor Ecm = 79 - 464 keV X4 01/09/2012 1988SA13 3H(α, α): recoil σ 0.5 - 2.5 X4 01/09/2012 1987BU18 3H(α, γ): σ and S-factor 0.7 - 2 X4 01/09/2012 1968IV01 3H(α, α): elastic scattering σ 3 - 11 Table 9 X4

  14. Air Shipment of Highly Enriched Uranium Spent Nuclear Fuel from Romania

    SciTech Connect (OSTI)

    K. J. Allen; I. Bolshinsky; L. L. Biro; M. E. Budu; N. V. Zamfir; M. Dragusin

    2010-07-01

    Romania safely air shipped 23.7 kilograms of Russian origin highly enriched uranium (HEU) spent nuclear fuel from the VVR S research reactor at Magurele, Romania, to the Russian Federation in June 2009. This was the worlds first air shipment of spent nuclear fuel transported in a Type B(U) cask under existing international laws without special exceptions for the air transport licenses. This shipment was coordinated by the Russian Research Reactor Fuel Return Program (RRRFR), part of the U.S. Department of Energy Global Threat Reduction Initiative (GTRI), in cooperation with the Romania National Commission for Nuclear Activities Control (CNCAN), the Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), and the Russian Federation State Corporation Rosatom. The shipment was transported by truck to and from the respective commercial airports in Romania and the Russian Federation and stored at a secure nuclear facility in Russia where it will be converted into low enriched uranium. With this shipment, Romania became the 3rd country under the RRRFR program and the 14th country under the GTRI program to remove all HEU. This paper describes the work, equipment, and approvals that were required to complete this spent fuel air shipment.

  15. EsxB, a secreted protein from Bacillus anthracis forms two distinct helical bundles

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Fan, Yao; Tan, Kemin; Chhor, Gekleng; Butler, Emily K.; Jedrzejczak, Robert P.; Missiakas, Dominique; Joachimiak, Andrzej

    2015-07-03

    The EsxB protein from Bacillus anthracis belongs to the WXG100 family, a group of proteins secreted by a specialized secretion system. We have determined the crystal structures of recombinant EsxB and discovered that the small protein (~10 kDa), comprised of a helix-loop-helix (HLH) hairpin, is capable of associating into two different helical bundles. The two basic quaternary assemblies of EsxB are an antiparallel (AP) dimer and a rarely observed bisecting U (BU) dimer. This structural duality of EsxB is believed to originate from the heptad repeat sequence diversity of the first helix of its HLH hairpin, which allows for twomore » alternative helix packing. The flexibility of EsxB and the ability to form alternative helical bundles underscore the possibility that this protein can serve as an adaptor in secretion and can form hetero-oligomeric helix bundle(s) with other secreted members of the WXG100 family, such as EsxW. The highly conserved WXG motif is located within the loop of the HLH hairpin and is mostly buried within the helix bundle suggesting that its role is mainly structural. The exact functions of the motif, including a proposed role as a secretion signal, remain unknown.« less

  16. Development of a Novel Bi-Directional Isolated Multiple-Input DC-DC Converter

    SciTech Connect (OSTI)

    Li, H.

    2005-10-24

    There is vital need for a compact, lightweight, and efficient energy-storage system that is both affordable and has an acceptable cycle life for the large-scale production of electric vehicles (EVs) and hybrid electric vehicles (HEVs). Most of the current research employs a battery-storage unit (BU) combined with a fuel cell (FC) stack in order to achieve the operating voltage-current point of maximum efficiency for the FC system. A system block diagram is shown in Fig.1.1. In such a conventional arrangement, the battery is sized to deliver the difference between the energy required by the traction drive and the energy supplied by the FC system. Energy requirements can increase depending on the drive cycle over which the vehicle is expected to operate. Peak-power transients result in an increase of losses and elevated temperatures which result in a decrease in the lifetime of the battery. This research will propose a novel two-input direct current (dc) dc to dc converter to interface an additional energy-storage element, an ultracapacitor (UC), which is shown in Fig.1.2. It will assist the battery during transients to reduce the peak-power requirements of the battery.

  17. Low-temperature CVD of iron, cobalt, and nickel nitride thin films from bis[di(tert-butyl)amido]metal(II) precursors and ammonia

    SciTech Connect (OSTI)

    Cloud, Andrew N.; Abelson, John R., E-mail: abelson@illinois.edu [Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 201 Materials Science and Engineering Building, 1304 W. Green St., Urbana, Illinois 61801 (United States); Davis, Luke M.; Girolami, Gregory S., E-mail: girolami@scs.illinois.edu [School of Chemical Sciences, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, Illinois 61801 (United States)

    2014-03-15

    Thin films of late transition metal nitrides (where the metal is iron, cobalt, or nickel) are grown by low-pressure metalorganic chemical vapor deposition from bis[di(tert-butyl)amido]metal(II) precursors and ammonia. These metal nitrides are known to have useful mechanical and magnetic properties, but there are few thin film growth techniques to produce them based on a single precursor family. The authors report the deposition of metal nitride thin films below 300?C from three recently synthesized M[N(t-Bu){sub 2}]{sub 2} precursors, where M?=?Fe, Co, and Ni, with growth onset as low as room temperature. Metal-rich phases are obtained with constant nitrogen content from growth onset to 200?C over a range of feedstock partial pressures. Carbon contamination in the films is minimal for iron and cobalt nitride, but similar to the nitrogen concentration for nickel nitride. X-ray photoelectron spectroscopy indicates that the incorporated nitrogen is present as metal nitride, even for films grown at the reaction onset temperature. Deposition rates of up to 18?nm/min are observed. The film morphologies, growth rates, and compositions are consistent with a gas-phase transamination reaction that produces precursor species with high sticking coefficients and low surface mobilities.

  18. Pressure-dependent magnetism and electrical resistivity of UFe/sub 4/P/sub 12/

    SciTech Connect (OSTI)

    Guertin, R.P.; Rossel, C.; Torikachvili, M.S.; McElfresh, M.W.; Maple, M.B.; Bloom, S.H.; Yao, Y.S.; Kuric, M.V.; Meisner, G.P.

    1987-12-01

    UFe/sub 4/P/sub 12/ is the first reported uranium-based ferromagnetic semiconductor. The Curie temperature T/sub C/ is 3.15 K, and the spontaneous magnetic moment sigma/sub 0/ which at T = 1.14 K was found to be approx. =1.0 ..mu../sub B//(U atom), is associated entirely with the uranium ions. The electrical resistivity rho(T) increases by nearly 7 orders of magnitude as temperature is decreased from room temperature to 4.2 K. The behavior of the ferromagnetic and electrical properties of UFe/sub 4/P/sub 12/ in hydrostatic pressures up to 16 kbar is reported. Quasihydrostatic-pressure effects on rho(T) to 100 kbar are also reported. Although T/sub C/ increases sharply with increasing pressure at the rate dT/sub C//dP = 0.26 K/kbar (in contrast to similar data on the isomorphic ferromagnet NdFe/sub 4/P/sub 12/, where dT/sub C//dP = 0.03 K/kbar), sigma/sub 0/ decreases, (1/sigma/sub 0/)(dsigma/sub 0//dp) = -0.007 kbar/sup -1/. Hydrostatic and quasihydrostatic pressure have little effect on rho(T).

  19. Electrodeposition From Acidic Solutions of Nickel Bis(benzenedithiolate) Produces a Hydrogen-Evolving Ni-S Film on Glassy Carbon

    SciTech Connect (OSTI)

    Fang, Ming; Engelhard, Mark H.; Zhu, Zihua; Helm, Monte L.; Roberts, John A.

    2014-01-03

    Films electrodeposited onto glassy carbon electrodes from acidic acetonitrile solutions of [Bu4N][Ni(bdt)2] (bdt = 1,2-benzenedithiolate) are active toward electrocatalytic hydrogen production at potentials 0.2-0.4 V positive of untreated electrodes. This activity is preserved on rinsing the electrode and transfer to fresh acid solution. X-ray photoelectron spectra indicate that the deposited material contains Ni and S. Correlations between voltammetric and spectroscopic results indicate that the deposited material is active, i.e. that catalysis is heterogeneous rather than homogeneous. Control experiments establish that obtaining the observed catalytic response requires both Ni and the 1,2 benzenedithiolate ligand to be present during deposition. This research was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy. A portion of the research was performed using EMSL, a 17 national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory.

  20. Search for a light charged Higgs boson decaying to $ \\mathrm{ c \\bar{s} } $ in pp collisions at $ \\sqrt{s} =$ 8 TeV

    SciTech Connect (OSTI)

    Khachatryan, Vardan

    2015-12-29

    Our search for a light charged Higgs boson, originating from the decay of a top quark and subsequently decaying into a charm quark and a strange antiquark, is presented. The data used in the analysis correspond to an integrated luminosity of 19.7 fb-1 recorded in proton-proton collisions at ?s = 8 TeV by the CMS experiment at the LHC. The search is performed in the process tt- WbH?b-, where the W boson decays to a lepton (electron or muon) and a neutrino. Furthermore, the decays lead to a final state comprising an isolated lepton, at least four jets and large missing transverse energy. No significant deviation is observed in the data with respect to the standard model predictions, and model-independent upper limits are set on the branching fraction B(t? H+b), ranging from 1.2 to 6.5% for a charged Higgs boson with mass between 90 and 160 GeV, under the assumption that B(H+ ?cs-) = 100%.

  1. Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector

    SciTech Connect (OSTI)

    Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A

    2011-10-14

    A measurement of the top-quark mass is presented using Tevatron data from proton-antiproton collisions at center-of-mass energy ?s = 1.96 TeV collected with the CDF II detector. Events are selected from a sample of candidates for production of tt? pairs that decay into the lepton+jets channel. The top-quark mass is measured with an unbinned maximum likelihood method where the event probability density functions are calculated using signal and background matrix elements, as well as a set of parameterized jet-to-parton transfer functions. The likelihood function is maximized with respect to the top-quark mass, the signal fraction in the sample, and a correction to the jet energy scale (JES) calibration of the calorimeter jets. The simultaneous measurement of the JES correction ({Delta}{sub JES}) amounts to an additional in situ jet energy calibration based on the known mass of the hadronically decaying W boson. Using the data sample of 578 lepton+jets candidate events, corresponding to 3.2 fb-1 of integrated luminosity, the top-quark mass is measured to be mt = 172.4 1.4 (stat + ?JES) 1.3 (syst) GeV/c2.

  2. Understanding the origins of human cancer

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Alexandrov, L. B.

    2015-12-04

    All cancers originate from a single cell that starts to behave abnormally, to divide uncontrollably, and, eventually, to invade adjacent tissues (1). The aberrant behavior of this single cell is due to somatic mutations—changes in the genomic DNA produced by the activity of different mutational processes (1). These various mutational processes include exposure to exogenous or endogenous mutagens, abnormal DNA editing, the incomplete fidelity of DNA polymerases, and failure of DNA repair mechanisms (2). Early studies that sequenced TP53, the most commonly mutated gene in human cancer, provided evidence that mutational processes leave distinct imprints of somatic mutations on themore » genome of a cancer cell (3). For example, C:G>A:T transversions predominate in smoking-associated lung cancer, whereas C:G>T:A transitions occurring mainly at dipyrimidines and CC:GG>TT:AA double-nucleotide substitutions are common in ultraviolet light–associated skin cancers. Moreover, these patterns of mutations matched the ones induced experimentally by tobacco mutagens and ultraviolet light, respectively, the major, known, exogenous carcinogenic influences in these cancer types, and demonstrated that examining patterns of mutations in cancer genomes can yield information about the mutational processes that cause human cancer (4).« less

  3. A model-free temperature-dependent conformational study of n-pentane in nematic liquid crystals

    SciTech Connect (OSTI)

    Burnell, E. Elliott; Weber, Adrian C. J.; Dong, Ronald Y.; Meerts, W. Leo; Lange, Cornelis A. de

    2015-01-14

    The proton NMR spectra of n-pentane orientationally ordered in two nematic liquid-crystal solvents are studied over a wide temperature range and analysed using covariance matrix adaptation evolutionary strategy. Since alkanes possess small electrostatic moments, their anisotropic intermolecular interactions are dominated by short-range size-and-shape effects. As we assumed for n-butane, the anisotropic energy parameters of each n-pentane conformer are taken to be proportional to those of ethane and propane, independent of temperature. The observed temperature dependence of the n-pentane dipolar couplings allows a model-free separation between conformer degrees of order and conformer probabilities, which cannot be achieved at a single temperature. In this way for n-pentane 13 anisotropic energy parameters (two for trans trans, tt, five for trans gauche, tg, and three for each of gauche{sub +} gauche{sub +}, pp, and gauche{sub +} gauche{sub ?}, pm), the isotropic trans-gauche energy difference E{sub tg} and its temperature coefficient E{sub tg}{sup ?} are obtained. The value obtained for the extra energy associated with the proximity of the two methyl groups in the gauche{sub +} gauche{sub ?} conformers (the pentane effect) is sensitive to minute details of other assumptions and is thus fixed in the calculations. Conformer populations are affected by the environment. In particular, anisotropic interactions increase the trans probability in the ordered phase.

  4. Forming chondrules in impact splashes. I. Radiative cooling model

    SciTech Connect (OSTI)

    Dullemond, Cornelis Petrus; Stammler, Sebastian Markus; Johansen, Anders

    2014-10-10

    The formation of chondrules is one of the oldest unsolved mysteries in meteoritics and planet formation. Recently an old idea has been revived: the idea that chondrules form as a result of collisions between planetesimals in which the ejected molten material forms small droplets that solidify to become chondrules. Pre-melting of the planetesimals by radioactive decay of {sup 26}Al would help produce sprays of melt even at relatively low impact velocity. In this paper we study the radiative cooling of a ballistically expanding spherical cloud of chondrule droplets ejected from the impact site. We present results from numerical radiative transfer models as well as analytic approximate solutions. We find that the temperature after the start of the expansion of the cloud remains constant for a time t {sub cool} and then drops with time t approximately as T ? T {sub 0}[(3/5)t/t {sub cool} + 2/5]{sup 5/3} for t > t {sub cool}. The time at which this temperature drop starts t {sub cool} depends via an analytical formula on the mass of the cloud, the expansion velocity, and the size of the chondrule. During the early isothermal expansion phase the density is still so high that we expect the vapor of volatile elements to saturate so that no large volatile losses are expected.

  5. Thermodynamic properties of bulk and confined water

    SciTech Connect (OSTI)

    Mallamace, Francesco; Corsaro, Carmelo; Mallamace, Domenico; Vasi, Sebastiano; Vasi, Cirino; Stanley, H. Eugene

    2014-11-14

    The thermodynamic response functions of water display anomalous behaviors. We study these anomalous behaviors in bulk and confined water. We use nuclear magnetic resonance (NMR) to examine the configurational specific heat and the transport parameters in both the thermal stable and the metastable supercooled phases. The data we obtain suggest that there is a behavior common to both phases: that the dynamics of water exhibit two singular temperatures belonging to the supercooled and the stable phase, respectively. One is the dynamic fragile-to-strong crossover temperature (T{sub L} ? 225K). The second, T{sup *} ? 315 5K, is a special locus of the isothermal compressibility K{sub T}(T, P) and the thermal expansion coefficient ?{sub P}(T, P) in the PT plane. In the case of water confined inside a protein, we observe that these two temperatures mark, respectively, the onset of protein flexibility from its low temperature glass state (T{sub L}) and the onset of the unfolding process (T{sup *})

  6. Review of Physics Results from the Tevatron: Higgs Boson Physics

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Junk, Thomas R.; Juste, Aurelio

    2015-02-17

    We review the techniques and results of the searches for the Higgs boson performed by the two Tevatron collaborations, CDF and DØ. The Higgs boson predicted by the Standard Model was sought in the mass range 90 GeV < mH < 200 GeV in all main production modes at the Tevatron: gluon–gluon fusion, WH and ZH associated production, vector boson fusion, and tt- H production, and in five main decay modes: H→ bb-, H→τ+τ-, H→WW(*), H→ZZ(*) and H→γγ. An excess of events was seen in the H→ bb- searches consistent with a Standard Model Higgs boson with a mass inmore » the range 115 GeV < mH < 135 GeV. We assume a Higgs boson mass of mH = 125 GeV, studies of Higgs boson properties were performed, including measurements of the product of the cross section times the branching ratio in various production and decay modes, constraints on Higgs boson couplings to fermions and vector bosons, and tests of spin and parity. We also summarize the results of searches for supersymmetric Higgs bosons, and Higgs bosons in other extensions of the Standard Model.« less

  7. Search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks using a matrix element method

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, V.

    2015-06-09

    A search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks is presented. Events with hadronic jets and one or two oppositely charged leptons are selected from a data sample corresponding to an integrated luminosity of 19.5fb-1 collected by the CMS experiment at the LHC in pp collisions at a centre-of-mass energy of 8TeV. In order to separate the signal from the larger tt + jets background, this analysis uses a matrix element method that assigns a probability density value to each reconstructed event under signal or background hypotheses. The ratiomorebetween the two values is used in a maximum likelihood fit to extract the signal yield. The results are presented in terms of the measured signal strength modifier, ?, relative to the standard model prediction for a Higgs boson mass of 125GeV. The observed (expected) exclusion limit at a 95 % confidence level is ?+1.6-1.5.less

  8. WIMPs at the galactic center

    SciTech Connect (OSTI)

    Agrawal, Prateek; Batell, Brian; Fox, Patrick J.; Harnik, Roni

    2015-05-07

    Simple models of weakly interacting massive particles (WIMPs) predict dark matter annihilations into pairs of electroweak gauge bosons, Higgses or tops, which through their subsequent cascade decays produce a spectrum of gamma rays. Intriguingly, an excess in gamma rays coming from near the Galactic center has been consistently observed in Fermi data. A recent analysis by the Fermi collaboration confirms these earlier results. Taking into account the systematic uncertainties in the modelling of the gamma ray backgrounds, we show for the first time that this excess can be well fit by these final states. In particular, for annihilations to (WW, ZZ, hh, tt{sup -bar}), dark matter with mass between threshold and approximately (165, 190, 280, 310) GeV gives an acceptable fit. The fit range for bb{sup -bar} is also enlarged to 35 GeV≲m{sub χ}≲165 GeV. These are to be compared to previous fits that concluded only much lighter dark matter annihilating into b, τ, and light quark final states could describe the excess. We demonstrate that simple, well-motivated models of WIMP dark matter including a thermal-relic neutralino of the MSSM, Higgs portal models, as well as other simplified models can explain the excess.

  9. Predictions for Sivers single spin asymmetries in one- and two-hadron electroproduction at CLAS12 and EIC

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Matevosyan, Hrayr H.; Kotzinian, Aram; Aschenauer, Elke -Caroline; Avakian, Harut A.; Thomas, Anthony W.

    2015-09-23

    The study of the Sivers effect, describing correlations between the transverse polarization of the nucleon and its constituent (unpolarized) parton's transverse momentum, has been the topic of a great deal of experimental, phenomenological and theoretical effort in recent years. Semi-Inclusive Deep Inelastic Scattering measurements of the corresponding single spin asymmetries (SSA) at the upcoming CLAS12 experiment at JLab and the proposed Electron-Ion Collider will help to pinpoint the flavor structure and the momentum dependence of the Sivers parton distribution function describing this effect. Here we describe a modified version of themore » $$\\tt{PYTHIA}$$ Monte Carlo event generator that includes the Sivers effect. Then we use it to estimate the size of these SSAs, in the kinematics of these experiments, for both one and two hadron final states of pions and kaons. For this purpose we utilize the existing Sivers parton distribution function (PDF) parametrization extracted from HERMES and COMPASS experiments. Furthermore, we also show that the the leading order approximation commonly used in such extractions provides significantly underestimated values of Sivers PDFs, as the omitted parton showers and non-DIS processes play an important role in these SSAs at lower light-cone momentum fraction, for example in the COMPASS kinematics.« less

  10. Predictions for Sivers single spin asymmetries in one- and two-hadron electroproduction at CLAS12 and EIC

    SciTech Connect (OSTI)

    Matevosyan, Hrayr H.; Kotzinian, Aram; Aschenauer, Elke -Caroline; Avakian, Harut A.; Thomas, Anthony W.

    2015-09-23

    The study of the Sivers effect, describing correlations between the transverse polarization of the nucleon and its constituent (unpolarized) parton's transverse momentum, has been the topic of a great deal of experimental, phenomenological and theoretical effort in recent years. Semi-Inclusive Deep Inelastic Scattering measurements of the corresponding single spin asymmetries (SSA) at the upcoming CLAS12 experiment at JLab and the proposed Electron-Ion Collider will help to pinpoint the flavor structure and the momentum dependence of the Sivers parton distribution function describing this effect. Here we describe a modified version of the $\\tt{PYTHIA}$ Monte Carlo event generator that includes the Sivers effect. Then we use it to estimate the size of these SSAs, in the kinematics of these experiments, for both one and two hadron final states of pions and kaons. For this purpose we utilize the existing Sivers parton distribution function (PDF) parametrization extracted from HERMES and COMPASS experiments. Furthermore, we also show that the the leading order approximation commonly used in such extractions provides significantly underestimated values of Sivers PDFs, as the omitted parton showers and non-DIS processes play an important role in these SSAs at lower light-cone momentum fraction, for example in the COMPASS kinematics.

  11. Top quark mass measurement using the template method at CDF

    SciTech Connect (OSTI)

    Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, J A; Apresyan, A; Arisawa, T

    2011-06-03

    We present a measurement of the top quark mass in the lepton+jets and dilepton channels of tt? decays using the template method. The data sample corresponds to an integrated luminosity of 5.6 fb-1 of pp? collisions at Tevatron with ?s = 1.96 TeV, collected with the CDF II detector. The measurement is performed by constructing templates of three kinematic variables in the lepton+jets and two kinematic variables in the dilepton channel. The variables are two reconstructed top quark masses from different jets-to-quarks combinations and the invariant mass of two jets from the W decay in the lepton+jets channel, and a reconstructed top quark mass and mT2, a variable related to the transverse mass in events with two missing particles, in the dilepton channel. The simultaneous fit of the templates from signal and background events in the lepton+jets and dilepton channels to the data yields a measured top quark mass of Mtop = 172.11.1 (stat)0.9 (syst) GeV/c2.

  12. Exclusion of an Exotic Top Quark with -4/3 Electric Charge Using Soft Lepton Tagging

    SciTech Connect (OSTI)

    Aaltonen, T.; Adelman, J.; Alvarez Gonzalez, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J.; Apresyan, A.; /Purdue U. /Waseda U.

    2010-06-01

    We present a measurement of the electric charge of the top quark using p{bar p} collisions corresponding to an integrated luminosity of 2.7 fb{sup -1} at the CDF II detector. We reconstruct t{bar t} events in the lepton+jets final state and use kinematic information to determine which b-jet is associated with the leptonically- or hadronically-decaying t-quark. Soft lepton taggers are used to determine the b-jet flavor. Along with the charge of the W boson decay lepton, this information permits the reconstruction of the top quark's electric charge. Out of 45 reconstructed events with 2.4 {+-} 0.8 expected background events, 29 are reconstructed as tt with the standard model +2/3 charge, whereas 16 are reconstructed as t{bar t} with an exotic -4/3 charge. This is consistent with the standard model and excludes the exotic scenario at 95% confidence level. This is the strongest exclusion of the exotic charge scenario and the first to use soft leptons for this purpose.

  13. Review of physics results from the Tevatron: Higgs boson physics

    SciTech Connect (OSTI)

    Junk, Thomas R.; Juste, Aurelio

    2015-02-28

    We review the techniques and results of the searches for the Higgs boson performed by the two Tevatron collaborations, CDF and DO. The Higgs boson predicted by the Standard Model was sought in the mass range 90 GeV H <200 GeV in all main production modes at the Tevatron: gluon-gluon fusion, WH and ZH associated production, vector boson fusion, and ttH production, and in five main decay modes: H ? bb, H ? ????, H ? WW (*), H ? ZZ (*), and H ? ??. An excess of events was seen in the H ? bb searches consistent with a Standard Model Higgs boson with a mass in the range 115 GeV H < 135 GeV. Assuming a Higgs boson mass of m H = 125 GeV, studies of Higgs boson properties were performed, including measurements of the product of the cross section times branching the ratio in various production and decay modes, constraints on Higgs boson couplings to fermions and vector bosons, and tests of spin and parity. We also summarize the results of searches for supersymmetric Higgs bosons, and Higgs bosons in other extensions of the Standard Model.

  14. Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2011-10-14

    A measurement of the top-quark mass is presented using Tevatron data from proton-antiproton collisions at center-of-mass energy ?s = 1.96 TeV collected with the CDF II detector. Events are selected from a sample of candidates for production of tt? pairs that decay into the lepton+jets channel. The top-quark mass is measured with an unbinned maximum likelihood method where the event probability density functions are calculated using signal and background matrix elements, as well as a set of parameterized jet-to-parton transfer functions. The likelihood function is maximized with respect to the top-quark mass, the signal fraction in the sample, and amorecorrection to the jet energy scale (JES) calibration of the calorimeter jets. The simultaneous measurement of the JES correction ({Delta}{sub JES}) amounts to an additional in situ jet energy calibration based on the known mass of the hadronically decaying W boson. Using the data sample of 578 lepton+jets candidate events, corresponding to 3.2 fb-1 of integrated luminosity, the top-quark mass is measured to be mt = 172.4 1.4 (stat + ?JES) 1.3 (syst) GeV/c2.less

  15. Search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks using a matrix element method

    SciTech Connect (OSTI)

    Khachatryan, V.

    2015-06-09

    A search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks is presented. Events with hadronic jets and one or two oppositely charged leptons are selected from a data sample corresponding to an integrated luminosity of 19.5fb-1 collected by the CMS experiment at the LHC in pp collisions at a centre-of-mass energy of 8TeV. In order to separate the signal from the larger tt + jets background, this analysis uses a matrix element method that assigns a probability density value to each reconstructed event under signal or background hypotheses. The ratio between the two values is used in a maximum likelihood fit to extract the signal yield. The results are presented in terms of the measured signal strength modifier, ?, relative to the standard model prediction for a Higgs boson mass of 125GeV. The observed (expected) exclusion limit at a 95 % confidence level is ?<4.2 (3.3), corresponding to a best fit value ?^=1.2+1.6-1.5.

  16. Gamma-ray burst flares: X-ray flaring. II

    SciTech Connect (OSTI)

    Swenson, C. A.; Roming, P. W. A., E-mail: cswenson@astro.psu.edu [Pennsylvania State University, 525 Davey Lab, University Park, PA 16802 (United States)

    2014-06-10

    We present a catalog of 498 flaring periods found in gamma-ray burst (GRB) light curves taken from the online Swift X-Ray Telescope GRB Catalogue. We analyzed 680 individual light curves using a flare detection method developed and used on our UV/optical GRB Flare Catalog. This method makes use of the Bayesian Information Criterion to analyze the residuals of fitted GRB light curves and statistically determines the optimal fit to the light curve residuals in an attempt to identify any additional features. These features, which we classify as flares, are identified by iteratively adding additional 'breaks' to the light curve. We find evidence of flaring in 326 of the analyzed light curves. For those light curves with flares, we find an average number of ?1.5 flares per GRB. As with the UV/optical, flaring in our sample is generally confined to the first 1000 s of the afterglow, but can be detected to beyond 10{sup 5} s. Only ?50% of the detected flares follow the 'classical' definition of ?t/t ? 0.5, with many of the largest flares exceeding this value.

  17. Search for pair production of excited top quarks in the lepton + jets final state

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chatrchyan, Serguei

    2014-11-19

    A search is performed for pair-produced spin-3/2 excited top quarks t*t ¯* , each decaying to a top quark and a gluon. The search uses data collected with the CMS detector from pp collisions at a center-of-mass energy of √s = 8 TeV, selecting events that have a single isolated muon or electron, an imbalance in transverse momentum, and at least six jets, of which one must be compatible with originating from the fragmentation of a b quark. The data, corresponding to an integrated luminosity of 19.5 fb-1, show no significant excess over standard model predictions, and provide a lowermore » limit of 803 GeV at 95% confidence on the mass of the spin-3/2 t* quark in an extension of the Randall-Sundrum model, assuming a 100% branching fraction of its decay into a top quark and a gluon. As a result, this is the first search for a spin-3/2 excited top quark performed at the LHC.« less

  18. Dependence of the critical temperature of high-temperature cuprate superconductors on hoppings and spin correlations between CuO{sub 2} planes

    SciTech Connect (OSTI)

    Makarov, I. A., E-mail: macplay@mail.ru; Ovchinnikov, S. G.; Shneider, E. I. [Russian Academy of Sciences, Kirensky Institute of Physics, Siberian Branch (Russian Federation)

    2012-02-15

    The influence of interlayer hoppings on the superconducting transition temperature (T{sub c}) in bilayer cuprates has been studied. The parameter of hopping between layers is expressed as t{sub Up-Tack }(k) = t{sub Up-Tack }(cos(k{sub x}) - cos(k{sub y})){sup 2} and treated as a small perturbation for the states of two CuO{sub 2} planes described by the t-t Prime -t Double-Prime -J* model. In the generalized mean field approximation for d{sub x}{sup 2} - y{sup 2} symmetry of the superconducting gap, neither the interlayer hopping or exchange interaction, nor the pair hopping between CuO{sub 2} layers provides an additional mechanism of Cooper pair formation or an increase in T{sub c}. In the concentration dependence of T{sub c}, the bilayer splitting of the upper Hubbard band of quasi-holes is manifested as two peaks with temperatures slightly lower than the maximum T{sub c} for a single-layer cuprate. Interlayer antiferromagnetic spin correlations suppress bilayer splitting.

  19. Search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks using a matrix element method

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, Vardan

    2015-06-09

    A search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks is presented. Events with hadronic jets and one or two oppositely charged leptons are selected from a data sample corresponding to an integrated luminosity of 19.5fb-1 collected by the CMS experiment at the LHC in pp collisions at a centre-of-mass energy of 8TeV. In order to separate the signal from the larger tt¯ + jets background, this analysis uses a matrix element method that assigns a probability density value to each reconstructed event under signal or background hypotheses. The ratiomore » between the two values is used in a maximum likelihood fit to extract the signal yield. The results are presented in terms of the measured signal strength modifier, μ, relative to the standard model prediction for a Higgs boson mass of 125GeV. The observed (expected) exclusion limit at a 95 % confidence level is μ < 4.2 (3.3), corresponding to a best fit value μ^ = 1.2+1.6-1.5.« less

  20. Chiral electric separation effect in the quark-gluon plasma

    SciTech Connect (OSTI)

    Jiang, Yin; Liao, Jinfeng; Huang, Xu-Guang

    2015-02-02

    In this paper we introduce and compute a new transport coefficient for the quark-gluon plasma (QGP) at very high temperature. This new coefficient ??e, the CESE (Chiral Electric Separation Effect) conductivity, quantifies the amount of axial current JA that is generated in response to an externally applied electric field eE: JA=??e(eE). Starting with a rather general argument in the kinetic theory framework, we show how a characteristic structure ??e???5 emerges, which also indicates the CESE as an anomalous transport effect occurring only in a parity-odd environment with nonzero axial charge density ?5 ? 0. Using the Hard-Thermal-Loop framework, the CESE conductivity for the QGP is found to be ??e = (#)TTrfQeQA/g?ln(1/g) ??5/T to the leading-log accuracy with the numerical constant (#) depending on favor content, e.g., (#)=14.5163 for u, d light flavors.

  1. Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.

    2011-10-14

    A measurement of the top-quark mass is presented using Tevatron data from proton-antiproton collisions at center-of-mass energy √s = 1.96 TeV collected with the CDF II detector. Events are selected from a sample of candidates for production of tt̄ pairs that decay into the lepton+jets channel. The top-quark mass is measured with an unbinned maximum likelihood method where the event probability density functions are calculated using signal and background matrix elements, as well as a set of parameterized jet-to-parton transfer functions. The likelihood function is maximized with respect to the top-quark mass, the signal fraction in the sample, and amore » correction to the jet energy scale (JES) calibration of the calorimeter jets. The simultaneous measurement of the JES correction ({Delta}{sub JES}) amounts to an additional in situ jet energy calibration based on the known mass of the hadronically decaying W boson. Using the data sample of 578 lepton+jets candidate events, corresponding to 3.2 fb-1 of integrated luminosity, the top-quark mass is measured to be mt = 172.4± 1.4 (stat + ΔJES) ± 1.3 (syst) GeV/c2.« less

  2. High precision predictions for exclusive VH production at the LHC

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Li, Ye; Liu, Xiaohui

    2014-06-04

    We present a resummation-improved prediction for pp → VH + 0 jets at the Large Hadron Collider. We focus on highly-boosted final states in the presence of jet veto to suppress the tt¯ background. In this case, conventional fixed-order calculations are plagued by the existence of large Sudakov logarithms αnslogm(pvetoT/Q) for Q ~ mV + mH which lead to unreliable predictions as well as large theoretical uncertainties, and thus limit the accuracy when comparing experimental measurements to the Standard Model. In this work, we show that the resummation of Sudakov logarithms beyond the next-to-next-to-leading-log accuracy, combined with the next-to-next-to-leading ordermore » calculation, reduces the scale uncertainty and stabilizes the perturbative expansion in the region where the vector bosons carry large transverse momentum. Thus, our result improves the precision with which Higgs properties can be determined from LHC measurements using boosted Higgs techniques.« less

  3. INITIAL EVALUATION OF A PULSED WHITE SPECTRUM NEUTRON GENERATOR FOR EXPLOSIVE DETECTION

    SciTech Connect (OSTI)

    King, Michael J.; Miller, Gill T.; Reijonen, Jani; Ji, Qing; Andresen, Nord; Gicquel,, Frederic; Kavlas, Taneli; Leung, Ka-Ngo; Kwan, Joe

    2008-06-02

    Successful explosive material detection in luggage and similar sized containers is acritical issue in securing the safety of all airline passengers. Tensor Technology Inc. has recently developed a methodology that will detect explosive compounds with pulsed fast neutron transmission spectroscopy. In this scheme, tritium beams will be used to generate neutrons with a broad energy spectrum as governed by the T(t,2n)4He fission reaction that produces 0-9 MeV neutrons. Lawrence Berkeley National Laboratory (LBNL), in collaboration with Tensor Technology Inc., has designedand fabricated a pulsed white-spectrum neutron source for this application. The specifications of the neutron source are demanding and stringent due to the requirements of high yield and fast pulsing neutron emission, and sealed tube, tritium operation. In a unique co-axial geometry, the ion source uses ten parallel rf induction antennas to externally couple power into a toroidal discharge chamber. There are 20 ion beam extraction slits and 3 concentric electrode rings to shape and accelerate the ion beam into a titanium cone target. Fast neutron pulses are created by using a set ofparallel-plate deflectors switching between +-1500 volts and deflecting the ion beams across a narrow slit. The generator is expected to achieve 5 ns neutron pulses at tritium ion beam energies between 80 - 120 kV. First experiments demonstrated ion source operation and successful beam pulsing.

  4. Quantitative law describing market dynamics before and after interest-rate change

    SciTech Connect (OSTI)

    Petersen, Alexander M.; Wang Fengzhong; Stanley, H. Eugene; Havlin, Shlomo

    2010-06-15

    We study the behavior of U.S. markets both before and after U.S. Federal Open Market Commission meetings and show that the announcement of a U.S. Federal Reserve rate change causes a financial shock, where the dynamics after the announcement is described by an analog of the Omori earthquake law. We quantify the rate n(t) of aftershocks following an interest-rate change at time T and find power-law decay which scales as n(t-T)approx(t-T){sup -O}MEGA, with OMEGA positive. Surprisingly, we find that the same law describes the rate n{sup '}(|t-T|) of 'preshocks' before the interest-rate change at time T. This study quantitatively relates the size of the market response to the news which caused the shock and uncovers the presence of quantifiable preshocks. We demonstrate that the news associated with interest-rate change is responsible for causing both the anticipation before the announcement and the surprise after the announcement. We estimate the magnitude of financial news using the relative difference between the U.S. Treasury Bill and the Federal Funds effective rate. Our results are consistent with the 'sign effect', in which 'bad news' has a larger impact than 'good news'. Furthermore, we observe significant volatility aftershocks, confirming a 'market under-reaction' that lasts at least one trading day.

  5. Enclosure I G Goi[ Go

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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  6. WIMPs at the galactic center

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Agrawal, Prateek; Batell, Brian; Fox, Patrick J.; Harnik, Roni

    2015-05-07

    Simple models of weakly interacting massive particles (WIMPs) predict dark matter annihilations into pairs of electroweak gauge bosons, Higgses or tops, which through their subsequent cascade decays produce a spectrum of gamma rays. Intriguingly, an excess in gamma rays coming from near the Galactic center has been consistently observed in Fermi data. A recent analysis by the Fermi collaboration confirms these earlier results. Taking into account the systematic uncertainties in the modelling of the gamma ray backgrounds, we show for the first time that this excess can be well fit by these final states. In particular, for annihilations to (WW,more » ZZ, hh, tt¯), dark matter with mass between threshold and approximately (165, 190, 280, 310) GeV gives an acceptable fit. The fit range for bb¯ is also enlarged to 35 GeV ≲ mχ ≲ 165 GeV. These are to be compared to previous fits that concluded only much lighter dark matter annihilating into b, τ, and light quark final states could describe the excess. We demonstrate that simple, well-motivated models of WIMP dark matter including a thermal-relic neutralino of the MSSM, Higgs portal models, as well as other simplified models can explain the excess.« less

  7. WIMPs at the galactic center

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Agrawal, Prateek; Batell, Brian; Fox, Patrick J.; Harnik, Roni

    2015-05-01

    Simple models of weakly interacting massive particles (WIMPs) predict dark matter annihilations into pairs of electroweak gauge bosons, Higgses or tops, which through their subsequent cascade decays produce a spectrum of gamma rays. Intriguingly, an excess in gamma rays coming from near the Galactic center has been consistently observed in Fermi data. A recent analysis by the Fermi collaboration confirms these earlier results. Taking into account the systematic uncertainties in the modelling of the gamma ray backgrounds, we show for the first time that this excess can be well fit by these final states. In particular, for annihilations to (WW,moreZZ, hh, tt), dark matter with mass between threshold and approximately (165, 190, 280, 310) GeV gives an acceptable fit. The fit range for bb is also enlarged to 35 GeV ? m? ? 165 GeV. These are to be compared to previous fits that concluded only much lighter dark matter annihilating into b, ?, and light quark final states could describe the excess. We demonstrate that simple, well-motivated models of WIMP dark matter including a thermal-relic neutralino of the MSSM, Higgs portal models, as well as other simplified models can explain the excess.less

  8. Search for a light charged Higgs boson decaying to $$ \\mathrm{ c \\bar{s} } $$ in pp collisions at $$ \\sqrt{s} =$$ 8 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, Vardan

    2015-12-29

    Our search for a light charged Higgs boson, originating from the decay of a top quark and subsequently decaying into a charm quark and a strange antiquark, is presented. The data used in the analysis correspond to an integrated luminosity of 19.7 fb-1 recorded in proton-proton collisions at √s = 8 TeV by the CMS experiment at the LHC. The search is performed in the process tt- W±bH∓b-, where the W boson decays to a lepton (electron or muon) and a neutrino. Furthermore, the decays lead to a final state comprising an isolated lepton, at least four jets and largemore » missing transverse energy. No significant deviation is observed in the data with respect to the standard model predictions, and model-independent upper limits are set on the branching fraction B(t→ H+b), ranging from 1.2 to 6.5% for a charged Higgs boson with mass between 90 and 160 GeV, under the assumption that B(H+ →cs-) = 100%.« less

  9. High precision predictions for exclusive VH production at the LHC

    SciTech Connect (OSTI)

    Li, Ye; Liu, Xiaohui

    2014-06-04

    We present a resummation-improved prediction for pp → VH + 0 jets at the Large Hadron Collider. We focus on highly-boosted final states in the presence of jet veto to suppress the tt¯ background. In this case, conventional fixed-order calculations are plagued by the existence of large Sudakov logarithms αnslogm(pvetoT/Q) for Q ~ mV + mH which lead to unreliable predictions as well as large theoretical uncertainties, and thus limit the accuracy when comparing experimental measurements to the Standard Model. In this work, we show that the resummation of Sudakov logarithms beyond the next-to-next-to-leading-log accuracy, combined with the next-to-next-to-leading order calculation, reduces the scale uncertainty and stabilizes the perturbative expansion in the region where the vector bosons carry large transverse momentum. Thus, our result improves the precision with which Higgs properties can be determined from LHC measurements using boosted Higgs techniques.

  10. Nuclear-structure studies with pions and heavy ions. Progress report, June 1, 1980-May 31, 1981

    SciTech Connect (OSTI)

    Dehnhard, D.

    1981-03-01

    Experiments performed at the Los Alamos Meson Physics Facility yielded very striking results. In inelastic pion scattering from /sup 14/C near the (3,3) resonance cross sections ratios R = sigma(..pi../sup +/)/sigma(..pi../sup -/) and R/sup -1/ = sigma(..pi../sup -/)/sigma(..pi../sup +/) were observed that are significantly larger than the free pion-nucleon values. These results were interpreted as due to strong cancellations of the neutron and proton components in the transition amplitude. Measurements of /sup 13/C(..pi..,..pi..') excitation functions between 100 and 300 MeV at two momentum transfers showed dramatically different energy dependencies for ..delta..S =0 and ..delta..S = 1 transitions. They were used to derive nuclear structure information on several highly excited states. Pion data for other nuclei (/sup 12/C, /sup 16/O, /sup 40/Ca, etc.) were analyzed and information on isospin mixing, the double-charge-exchange reaction mechanism, and the excitation of collective states was extracted. Further data were taken with a 547 MeV proton beam on /sup 13/C. The data taking for the (t,t') and (/sup 3/He,/sup 3/He') reactions at the Los Alamos Van de Graaff has been completed. The continuing studies of the heavy-ion nucleus optical potential yielded information on very systematic dependencies of the potential depths on the incident energy.

  11. Nuclear structure studies with pions and heavy ions. Progress report, June 1, 1979-May 31, 1980. [Univ. of Minnesota, June 1, 1979-May 31, 1980

    SciTech Connect (OSTI)

    Dehnhard, D.

    1980-03-01

    The elastic and inelastic scattering of ..pi../sup +/ and ..pi../sup -/ by /sup 13/C, /sup 16/O, and /sup 17/O was studied at pion energies close to the (3,3) resonance. Data were taken at the Los Alamos Meson Physics Facility. Large asymmetries were observed, two of which are consistent with pure neutron and pure proton excitations. Transitions to strongly excited states of /sup 13/C are in strikingly good agreement with theoretical predictions of Lee and Kurath. In sharp contrast, strong disagreements are found for the weakly excited states. The asymmetries for /sup 16/O + ..pi../sup + -/ were interpreted as due to isospin mixing between the excited states. High-resolution data for (t,t') and (/sup 3/He,/sup 3/He') on /sup 13/C were taken to supplement the pion work. Asymmetries were found for the relative cross sections for some states. In studies of the heavy-ion-nucleus potential the effect of potential resonances on the elastic scattering of /sup 16/O + /sup 28/Si was found to be small. A close similarity between the elastic exchange amplitude at 180/sup 0/ and the effect of the parity dependence on the elastic amplitude was found. Fits to the new data at 40 and 41.226 MeV required the use of a composite absorptive potential. The surface derivative part of this potential can be deduced from a coupled-channels calculation. 17 figures.

  12. Corrosion investigation of coatings for surface protection of military hardware

    SciTech Connect (OSTI)

    Lindsey, N.; Vasanth, K.L.

    1996-10-01

    A product improvement program (PIP) for the surface finish of some steel military hardware has been recently initiated by the Navy. Presently the metal cleaning methods, interior and exterior surface finishes and corrosion protection requirements for such hardware are specified in MIL-P-18948. The coated hardware are stored in a warehouse structure for long durations. Because these storage places are not environmentally controlled (that is, no temperature or humidity control) the corrosion protection has not been adequate. The exterior surfaces of the hardware are coated with a corrosion inhibiting alkyd primer coating (TT-P-664) or a rust inhibiting lacquer primer coating (MIL-P-11414) to a thickness of 0.4 to 0.6 mils. The exterior color paint, (MIL-E-52891 or MIL-P11195), is applied to a thickness of 1.5 mils. The investigation of various coatings to replace the present system is an ongoing effort. The coatings have been examined from a corrosion protection vantage point and results have been correlated. The coatings were evaluated by exposing them to natural marine atmosphere and seawater wetdown tests. The coatings were also exposed to a 5.0% sodium chloride solution in a laboratory environmental salt fog chamber for 500 hours. Selected coatings were examined using Electrochemical Impedance Spectroscopy (EIS). The results obtained from field tests, salt fog, and EIS measurements are discussed.

  13. LANDSCAPE MANAGEMENT FOR SUSTAINABLE SUPPLIES OF BIOENERGY FEEDSTOCK AND ENHANCED SOIL QUALITY

    SciTech Connect (OSTI)

    Douglas L. Karlen; David J. Muth, Jr.

    2012-09-01

    Agriculture can simultaneously address global food, feed, fiber, and energy challenges provided our soil, water, and air resources are not compromised in doing so. As we embark on the 19th Triennial Conference of the International Soil and Tillage Research Organization (ISTRO), I am pleased to proclaim that our members are well poised to lead these endeavors because of our comprehensive understanding of soil, water, agricultural and bio-systems engineering processes. The concept of landscape management, as an approach for integrating multiple bioenergy feedstock sources, including biomass residuals, into current crop production systems, is used as the focal point to show how these ever-increasing global challenges can be met in a sustainable manner. Starting with the 2005 Billion Ton Study (BTS) goals, research and technology transfer activities leading to the 2011 U.S. Department of Energy (DOE) Revised Billion Ton Study (BT2) and development of a residue management tool to guide sustainable crop residue harvest will be reviewed. Multi-location USDA-Agricultural Research Service (ARS) Renewable Energy Assessment Project (REAP) team research and on-going partnerships between public and private sector groups will be shared to show the development of landscape management strategies that can simultaneously address the multiple factors that must be balanced to meet the global challenges. Effective landscape management strategies recognize the importance of natures diversity and strive to emulate those conditions to sustain multiple critical ecosystem services. To illustrate those services, the soil quality impact of harvesting crop residues are presented to show how careful, comprehensive monitoring of soil, water and air resources must be an integral part of sustainable bioenergy feedstock production systems. Preliminary analyses suggest that to sustain soil resources within the U.S. Corn Belt, corn (Zea mays L.) stover should not be harvested if average grain yields are less than 11 Mg ha-1 (175 bu ac-1) unless more intensive landscape management practices are implemented. Furthermore, although non-irrigated corn grain yields east and west of the primary Corn Belt may not consistently achieve the 11 Mg ha-1 yield levels, corn can still be part of an overall landscape approach for sustainable feedstock production. Another option for producers with consistently high yields (> 12.6 Mg ha-1 or 200 bu ac-1) that may enable them to sustainably harvest even more stover is to decrease their tillage intensity which will reduce fuel use, preserve rhizosphere carbon, and/or help maintain soil structure and soil quality benefits often attributed to no-till production systems. In conclusion, I challenge all ISTRO scientists to critically ask if your research is contributing to improved soil and crop management strategies that effectively address the complexity associated with sustainable food, feed, fiber and fuel production throughout the world.

  14. A faux hawk fullerene with PCBM-like properties

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    San, Long K.; Bukovsky, Eric V.; Larson, Bryon W.; Whitaker, James B.; Deng, Shihu; Kopidakis, Nikos; Rumbles, Garry; Popov, Alexey A.; Chen, Yu-Sheng; Wang, Xue B.; et al

    2014-12-16

    Reaction of C60, C6F5CF2I, and SnH(n-Bu)3 produced, among other unidentified fullerene derivatives, the two new compounds 1,9-C60(CF2C6F5)H (1) and 1,9-C60(cyclo-CF2(2-C6F4)) (2). The highest isolated yield of 1 was 35% based on C60. Depending on the reaction conditions, the relative amounts of 1 and 2 generated in situ were as high as 85% and 71%, respectively, based on HPLC peak integration and summing over all fullerene species present other than unreacted C60. Compound 1 is thermally stable in 1,2-dichlorobenzene (oDCB) at 160 °C but was rapidly converted to 2 upon addition of Sn2(n-Bu)6 at this temperature. In contrast, complete conversion ofmore » 1 to 2 occurred within minutes, or hours, at 25 °C in 90/10 (v/v) PhCN/C6D6 by addition of stoichiometric, or sub-stoichiometric, amounts of proton sponge (PS) or cobaltocene (CoCp2). DFT calculations indicate that when 1 is deprotonated, the anion C60(CF2C6F5)- can undergo facile intramolecular SNAr annulation to form 2 with concomitant loss of F-. To our knowledge this is the first observation of a fullerene-cage carbanion acting as an SNAr nucleophile towards an aromatic C–F bond. The gas-phase electron affinity (EA) of 2 was determined to be 2.805(10) eV by low-temperature PES, higher by 0.12(1) eV than the EA of C60 and higher by 0.18(1) eV than the EA of phenyl-C61-butyric acid methyl ester (PCBM). In contrast, the relative E1/2(0/-) values of 2 and C60, -0.01(1) and 0.00(1) V, respectively, are virtually the same (on this scale, and under the same conditions, the E1/2(0/-) of PCBM is -0.09 V). Time-resolved microwave conductivity charge-carrier yield x mobility values for organic photovoltaic active-layer-type blends of 2 and poly-3-hexylthiophene (P3HT) were comparable to those for equimolar blends of PCBM and P3HT. The structure of solvent-free crystals of 2 was determined by single-crystal X-ray diffraction. The number of nearest-neighbor fullerene–fullerene interactions with centroid∙∙∙centroid (⊙∙∙∙⊙) distances of ≤ 10.34 Å is significantly greater, and the average ⊙∙∙∙⊙ distance is shorter, for 2 (10 nearest neighbors; ave. ⊙∙∙∙⊙ distance = 10.09 Å) than for solvent-free crystals of PCBM (7 nearest neighbors; ave. ⊙∙∙∙⊙ distance = 10.17 Å). Finally, the thermal stability of 2 was found to be far greater than that of PCBM.« less

  15. A faux hawk fullerene with PCBM-like properties

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    San, Long K.; Bukovsky, Eric V.; Larson, Bryon W.; Whitaker, James B.; Deng, S. H.M.; Kopidakis, Nikos; Rumbles, Garry; Popov, Alexey A.; Chen, Yu-Sheng; Wang, Xue-Bin; et al

    2014-12-16

    Reaction of C60, C6F5CF2I, and SnH(n-Bu)3 produced, among other unidentified fullerene derivatives, the two new compounds 1,9-C60(CF2C6F5)H (1) and 1,9-C60(cyclo-CF2(2-C6F4)) (2). The highest isolated yield of 1 was 35% based on C60. Depending on the reaction conditions, the relative amounts of 1 and 2 generated in situ were as high as 85% and 71%, respectively, based on HPLC peak integration and summing over all fullerene species present other than unreacted C60. Compound 1 is thermally stable in 1,2-dichlorobenzene (oDCB) at 160 °C but was rapidly converted to 2 upon addition of Sn2(n-Bu)6 at this temperature. In contrast, complete conversion ofmore » 1 to 2 occurred within minutes, or hours, at 25 °C in 90/10 (v/v) PhCN/C6D6 by addition of stoichiometric, or sub-stoichiometric, amounts of proton sponge (PS) or cobaltocene (CoCp2). DFT calculations indicate that when 1 is deprotonated, the anion C60(CF2C6F5)- can undergo facile intramolecular SNAr annulation to form 2 with concomitant loss of F-. To our knowledge this is the first observation of a fullerene-cage carbanion acting as an SNAr nucleophile towards an aromatic C–F bond. The gas-phase electron affinity (EA) of 2 was determined to be 2.805(10) eV by low-temperature PES, higher by 0.12(1) eV than the EA of C60 and higher by 0.18(1) eV than the EA of phenyl-C61-butyric acid methyl ester (PCBM). In contrast, the relative E1/2(0/-) values of 2 and C60, -0.01(1) and 0.00(1) V, respectively, are virtually the same (on this scale, and under the same conditions, the E1/2(0/-) of PCBM is -0.09 V). Time-resolved microwave conductivity charge-carrier yield × mobility values for organic photovoltaic active-layer-type blends of 2 and poly-3-hexylthiophene (P3HT) were comparable to those for equimolar blends of PCBM and P3HT. The structure of solvent-free crystals of 2 was determined by single-crystal X-ray diffraction. The number of nearest-neighbor fullerene–fullerene interactions with centroid···centroid (⊙···⊙) distances of ≤10.34 Å is significantly greater, and the average ⊙···⊙ distance is shorter, for 2 (10 nearest neighbors; ave. ⊙···⊙ distance = 10.09 Å) than for solvent-free crystals of PCBM (7 nearest neighbors; ave. ⊙···⊙ distance = 10.17 Å). Finally, the thermal stability of 2 was found to be far greater than that of PCBM.« less

  16. A faux hawk fullerene with PCBM-like properties

    SciTech Connect (OSTI)

    San, Long K.; Bukovsky, Eric V.; Larson, Bryon W.; Whitaker, James B.; Deng, Shihu; Kopidakis, Nikos; Rumbles, Garry; Popov, Alexey A.; Chen, Yu-Sheng; Wang, Xue B.; Boltalina, Olga V.; Strauss, Steven H.

    2014-12-16

    Reaction of C60, C6F5CF2I, and SnH(n-Bu)3 produced, among other unidentified fullerene derivatives, the two new compounds 1,9-C60(CF2C6F5)H (1) and 1,9-C60(cyclo-CF2(2-C6F4)) (2). The highest isolated yield of 1 was 35% based on C60. Depending on the reaction conditions, the relative amounts of 1 and 2 generated in situ were as high as 85% and 71%, respectively, based on HPLC peak integration and summing over all fullerene species present other than unreacted C60. Compound 1 is thermally stable in 1,2-dichlorobenzene (oDCB) at 160 C but was rapidly converted to 2 upon addition of Sn2(n-Bu)6 at this temperature. In contrast, complete conversion of 1 to 2 occurred within minutes, or hours, at 25 C in 90/10 (v/v) PhCN/C6D6 by addition of stoichiometric, or sub-stoichiometric, amounts of proton sponge (PS) or cobaltocene (CoCp2). DFT calculations indicate that when 1 is deprotonated, the anion C60(CF2C6F5)- can undergo facile intramolecular SNAr annulation to form 2 with concomitant loss of F-. To our knowledge this is the first observation of a fullerene-cage carbanion acting as an SNAr nucleophile towards an aromatic CF bond. The gas-phase electron affinity (EA) of 2 was determined to be 2.805(10) eV by low-temperature PES, higher by 0.12(1) eV than the EA of C60 and higher by 0.18(1) eV than the EA of phenyl-C61-butyric acid methyl ester (PCBM). In contrast, the relative E1/2(0/-) values of 2 and C60, -0.01(1) and 0.00(1) V, respectively, are virtually the same (on this scale, and under the same conditions, the E1/2(0/-) of PCBM is -0.09 V). Time-resolved microwave conductivity charge-carrier yield x mobility values for organic photovoltaic active-layer-type blends of 2 and poly-3-hexylthiophene (P3HT) were comparable to those for equimolar blends of PCBM and P3HT. The structure of solvent-free crystals of 2 was determined by single-crystal X-ray diffraction. The number of nearest-neighbor fullerenefullerene interactions with centroid???centroid (?????) distances of ? 10.34 is significantly greater, and the average ????? distance is shorter, for 2 (10 nearest neighbors; ave. ????? distance = 10.09 ) than for solvent-free crystals of PCBM (7 nearest neighbors; ave. ????? distance = 10.17 ). Finally, the thermal stability of 2 was found to be far greater than that of PCBM.

  17. A faux hawk fullerene with PCBM-like properties

    SciTech Connect (OSTI)

    San, Long K.; Bukovsky, Eric V.; Larson, Bryon W.; Whitaker, James B.; Deng, S. H.M.; Kopidakis, Nikos; Rumbles, Garry; Popov, Alexey A.; Chen, Yu-Sheng; Wang, Xue-Bin; Boltalina, Olga V.; Strauss, Steven H.

    2014-12-16

    Reaction of C60, C6F5CF2I, and SnH(n-Bu)3 produced, among other unidentified fullerene derivatives, the two new compounds 1,9-C60(CF2C6F5)H (1) and 1,9-C60(cyclo-CF2(2-C6F4)) (2). The highest isolated yield of 1 was 35% based on C60. Depending on the reaction conditions, the relative amounts of 1 and 2 generated in situ were as high as 85% and 71%, respectively, based on HPLC peak integration and summing over all fullerene species present other than unreacted C60. Compound 1 is thermally stable in 1,2-dichlorobenzene (oDCB) at 160 C but was rapidly converted to 2 upon addition of Sn2(n-Bu)6 at this temperature. In contrast, complete conversion of 1 to 2 occurred within minutes, or hours, at 25 C in 90/10 (v/v) PhCN/C6D6 by addition of stoichiometric, or sub-stoichiometric, amounts of proton sponge (PS) or cobaltocene (CoCp2). DFT calculations indicate that when 1 is deprotonated, the anion C60(CF2C6F5)- can undergo facile intramolecular SNAr annulation to form 2 with concomitant loss of F-. To our knowledge this is the first observation of a fullerene-cage carbanion acting as an SNAr nucleophile towards an aromatic CF bond. The gas-phase electron affinity (EA) of 2 was determined to be 2.805(10) eV by low-temperature PES, higher by 0.12(1) eV than the EA of C60 and higher by 0.18(1) eV than the EA of phenyl-C61-butyric acid methyl ester (PCBM). In contrast, the relative E1/2(0/-) values of 2 and C60, -0.01(1) and 0.00(1) V, respectively, are virtually the same (on this scale, and under the same conditions, the E1/2(0/-) of PCBM is -0.09 V). Time-resolved microwave conductivity charge-carrier yield mobility values for organic photovoltaic active-layer-type blends of 2 and poly-3-hexylthiophene (P3HT) were comparable to those for equimolar blends of PCBM and P3HT. The structure of solvent-free crystals of 2 was determined by single-crystal X-ray diffraction. The number of nearest-neighbor fullerenefullerene interactions with centroidcentroid (??) distances of ?10.34 is significantly greater, and the average ?? distance is shorter, for 2 (10 nearest neighbors; ave. ?? distance = 10.09 ) than for solvent-free crystals of PCBM (7 nearest neighbors; ave. ?? distance = 10.17 ). Finally, the thermal stability of 2 was found to be far greater than that of PCBM.

  18. De novo synthesis and properties of analogues of the self-assembling chlorosomal bacteriochlorophylls

    SciTech Connect (OSTI)

    Mass, Olga [North Carolina State Univ., Raleigh, NC (United States); Pandithavidana, Dinesh R. [North Carolina State Univ., Raleigh, NC (United States); Ptaszek, Marcin [North Carolina State Univ., Raleigh, NC (United States); Santiago, Koraliz [North Carolina State Univ., Raleigh, NC (United States); Springer, Joseph W. [Washington Univ., St. Louis, MO (United States); Jiao, Jieying [Univ. Of California, Riverside, CA (United States); Tang, Qun [Univ. Of California, Riverside, CA (United States); Kirmaier, Christine [Washington Univ., St. Louis, MO (United States); Bocian, David F. [Univ. Of California, Riverside, CA (United States); Holten, Dewey [Washington Univ., St. Louis, MO (United States); Lindsey, Jonathan S. [North Carolina State Univ., Raleigh, NC (United States)

    2011-01-01

    Natural photosynthetic pigments bacteriochlorophyllsc, d and e in green bacteria undergo self-assembly to create an organized antenna system known as the chlorosome, which collects photons and funnels the resulting excitation energy toward the reaction centers. Mimicry of chlorosome function is a central problem in supramolecular chemistry and artificial photosynthesis, and may have relevance for the design of photosynthesis-inspired solar cells. The main challenge in preparing artificial chlorosomes remains the synthesis of the appropriate pigment (chlorin) equipped with a set of functional groups suitable to direct the assembly and assure efficient energy transfer. Prior approaches have entailed derivatization of porphyrins or semisynthesis beginning with chlorophylls. This paper reports a third approach, the de novo synthesis of macrocycles that contain the same hydrocarbon skeleton as chlorosomal bacteriochlorophylls. The synthesis here of Zn(II) 3-(1-hydroxyethyl)-10-aryl-13-oxophorbines (the aryl group consists of phenyl, mesityl, or pentafluorophenyl) entails selective bromination of a 3,13-diacetyl-10-arylchlorin, palladium-catalyzed 13-oxophorbine formation, and selective reduction of the 3-acetyl group using BH?tBuNH?. Each macrocycle contains a geminal dimethyl group in the pyrroline ring to provide stability toward adventitious dehydrogenation. A Zn(II) 7-(1-hydroxyethyl)-10-phenyl-17-oxochlorin also has been prepared. Altogether, 30 new hydroporphyrins were synthesized. The UV-Vis absorption spectra of the new chlorosomal bacteriochlorophyll mimics reveal a bathochromic shift of [similar]1800 cm-1 of the Qy band in nonpolar solvent, indicating extensive assembly in solution. The Zn(II) 3-(1-hydroxyethyl)-10-aryl-13-oxophorbines differ in the propensity to form assemblies based on the 10-substituent in the following order: mesityl

  19. AIR SHIPMENT OF HIGHLY ENRICHED URANIUM SPENT NUCLEAR FUEL FROM ROMANIA AND LIBYA

    SciTech Connect (OSTI)

    Christopher Landers; Igor Bolshinsky; Ken Allen; Stanley Moses

    2010-07-01

    In June 2009 Romania successfully completed the worlds first air shipment of highly enriched uranium (HEU) spent nuclear fuel transported in Type B(U) casks under existing international laws and without special exceptions for the air transport licenses. Special 20-foot ISO shipping containers and cask tiedown supports were designed to transport Russian TUK 19 shipping casks for the Romanian air shipment and the equipment was certified for all modes of transport, including road, rail, water, and air. In December 2009 Libya successfully used this same equipment for a second air shipment of HEU spent nuclear fuel. Both spent fuel shipments were transported by truck from the originating nuclear facilities to nearby commercial airports, were flown by commercial cargo aircraft to a commercial airport in Yekaterinburg, Russia, and then transported by truck to their final destinations at the Production Association Mayak facility in Chelyabinsk, Russia. Both air shipments were performed under the Russian Research Reactor Fuel Return Program (RRRFR) as part of the U.S. National Nuclear Security Administration (NNSA) Global Threat Reduction Initiative (GTRI). The Romania air shipment of 23.7 kg of HEU spent fuel from the VVR S research reactor was the last of three HEU fresh and spent fuel shipments under RRRFR that resulted in Romania becoming the 3rd RRRFR participating country to remove all HEU. Libya had previously completed two RRRFR shipments of HEU fresh fuel so the 5.2 kg of HEU spent fuel air shipped from the IRT 1 research reactor in December made Libya the 4th RRRFR participating country to remove all HEU. This paper describes the equipment, preparations, and license approvals required to safely and securely complete these two air shipments of spent nuclear fuel.

  20. Novel Characterization of GDI Engine Exhaust for Gasoline and Mid-Level Gasoline-Alcohol Blends

    SciTech Connect (OSTI)

    Storey, John Morse; Lewis Sr, Samuel Arthur; Szybist, James P; Thomas, John F; Barone, Teresa L; Eibl, Mary A; Nafziger, Eric J; Kaul, Brian C

    2014-01-01

    Gasoline direct injection (GDI) engines can offer improved fuel economy and higher performance over their port fuel-injected (PFI) counterparts, and are now appearing in increasingly more U.S. and European vehicles. Small displacement, turbocharged GDI engines are replacing large displacement engines, particularly in light-duty trucks and sport utility vehicles, in order for manufacturers to meet more stringent fuel economy standards. GDI engines typically emit the most particulate matter (PM) during periods of rich operation such as start-up and acceleration, and emissions of air toxics are also more likely during this condition. A 2.0 L GDI engine was operated at lambda of 0.91 at typical loads for acceleration (2600 rpm, 8 bar BMEP) on three different fuels; an 87 anti-knock index (AKI) gasoline (E0), 30% ethanol blended with the 87 AKI fuel (E30), and 48% isobutanol blended with the 87 AKI fuel. E30 was chosen to maximize octane enhancement while minimizing ethanol-blend level and iBu48 was chosen to match the same fuel oxygen level as E30. Particle size and number, organic carbon and elemental carbon (OC/EC), soot HC speciation, and aldehydes and ketones were all analyzed during the experiment. A new method for soot HC speciation is introduced using a direct, thermal desorption/pyrolysis inlet for the gas chromatograph (GC). Results showed high levels of aromatic compounds were present in the PM, including downstream of the catalyst, and the aldehydes were dominated by the alcohol blending.

  1. Organometallic complexes of bulky, optically active, C3-symmetric tris(4S-isopropyl-5,5-dimethyl-2-oxazolinyl)phenylborate (ToP*)

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Xu, Songchen; Magoon, Yitzhak; Reinig, Regina R.; Schmidt, Bradley M.; Ellern, Arkady; Sadow, Aaron D.

    2015-07-16

    A bulky, optically active monoanionic scorpionate ligand, tris(4S-isopropyl-5,5-dimethyl-2-oxazolinyl)phenylborate (ToP*), is synthesized from the naturally occurring amino acid l-valine as its lithium salt, Li[ToP*] (1). That compound is readily converted to the thallium complex Tl[ToP*] (2) and to the acid derivative H[ToP*] (3). Group 7 tricarbonyl complexes ToP*M(CO)3 (M = Mn (4), Re (5)) are synthesized by the reaction of MBr(CO)5 and Li[ToP*] and are crystallographically characterized. The νCO bands in their infrared spectra indicate that π back-donation in the rhenium compounds is greater with ToP* than with non-methylated tris(4S-isopropyl-2-oxazolinyl)phenylborate (ToP). The reaction of H[ToP*] and ZnEt2 gives ToP*ZnEt (6), whilemore » ToP*ZnCl (7) is synthesized from Li[ToP*] and ZnCl2. The reaction of ToP*ZnCl and KOtBu followed by addition of PhSiH3 provides the zinc hydride complex ToP*ZnH (8). In this study, compound 8 is the first example of a crystallographically characterized optically active zinc hydride. We tested its catalytic reactivity in the cross-dehydrocoupling of silanes and alcohols, which provided Si-chiral silanes with moderate enantioselectivity.« less

  2. Air Shipment of Spent Nuclear Fuel from Romania to Russia

    SciTech Connect (OSTI)

    Igor Bolshinsky; Ken Allen; Lucian Biro; Alexander Buchelnikov

    2010-10-01

    Romania successfully completed the worlds first air shipment of spent nuclear fuel transported in Type B(U) casks under existing international laws and without shipment license special exceptions when the last Romanian highly enriched uranium (HEU) spent nuclear fuel was transported to the Russian Federation in June 2009. This air shipment required the design, fabrication, and licensing of special 20 foot freight containers and cask tiedown supports to transport the eighteen TUK 19 shipping casks on a Russian commercial cargo aircraft. The new equipment was certified for transport by road, rail, water, and air to provide multi modal transport capabilities for shipping research reactor spent fuel. The equipment design, safety analyses, and fabrication were performed in the Russian Federation and transport licenses were issued by both the Russian and Romanian regulatory authorities. The spent fuel was transported by truck from the VVR S research reactor to the Bucharest airport, flown by commercial cargo aircraft to the airport at Yekaterinburg, Russia, and then transported by truck to the final destination in a secure nuclear facility at Chelyabinsk, Russia. This shipment of 23.7 kg of HEU was coordinated by the Russian Research Reactor Fuel Return Program (RRRFR), as part of the U.S. Department of Energy Global Threat Reduction Initiative (GTRI), in close cooperation with the Rosatom State Atomic Energy Corporation and the International Atomic Energy Agency, and was managed in Romania by the National Commission for Nuclear Activities Control (CNCAN). This paper describes the planning, shipment preparations, equipment design, and license approvals that resulted in the safe and secure air shipment of this spent nuclear fuel.

  3. A primer for criticality calculations with DANTSYS

    SciTech Connect (OSTI)

    Busch, R.D.

    1997-08-01

    With the closure of many experimental facilities, the nuclear safety analyst has to rely on computer calculations to identify safe limits for the handling and storage of fissile materials. Although deterministic methods often do not provide exact models of a system, a substantial amount of reliable information on nuclear systems can be obtained using these methods if the user understands their limitations. To guide criticality specialists in this area, the Nuclear Criticality Safety Group at the University of New Mexico (UNM) in cooperation with the Radiation Transport Group at Los Alamos National Laboratory (LANL) has designed a primer to help the analyst understand and use the DANTSYS deterministic transport code for nuclear criticality safety analyses. DANTSYS is the new name of the group of codes formerly known as: ONEDANT, TWODANT, TWOHEX, TWOGQ, and THREEDANT. The primer is designed to teach bu example, with each example illustrating two or three DANTSYS features useful in criticality analyses. Starting with a Quickstart chapter, the primer gives an overview of the basic requirements for DANTSYS input and allows the user to quickly run a simple criticality problem with DANTSYS. Each chapter has a list of basic objectives at the beginning identifying the goal of the chapter and the individual DANTSYS features covered in detail in the chapter example problems. On completion of the primer, it is expected that the user will be comfortable doing criticality calculations with DANTSYS and can handle 60--80% of the situations that normally arise in a facility. The primary provides a set of input files that can be selective modified by the user to fit each particular problem.

  4. Tools and Methods for Hardening Communication Security of Energy Delivery Systems

    SciTech Connect (OSTI)

    Gadgil, Shrirang; Lin, Yow-Jian; Ghosh, Abhrajit; Samtani, Sunil; Kang, Jaewon; Siegell, Bruce; Kaul, Vikram; Unger, John; De Bruet, Andre; Martinez, Catherine; Vermeulen, Gerald; Rasche, Galen; Sternfeld, Scott; Berthier, Robin; Bobba, Rakesh; Campbell, Roy; Sanders, Williams; Lin, Yow-Jian

    2014-06-30

    This document summarizes the research and development work the TT Government Solutions (TTGS), d.b.a. Applied Communication Sciences (ACS), team performed for the Department of Energy Cybersecurity for Energy Delivery Systems (CEDS) program. It addresses the challenges in protecting critical grid control and data communication, including the identification of vulnerabilities and deficiencies of communication protocols commonly used in energy delivery systems (e.g., ICCP, DNP3, C37.118, C12.22), as well as the development of effective means to detect and prevent the exploitation of such vulnerabilities and deficiencies. The team consists of TT Government Solutions (TTGS), a leading provider of communications solutions that has extensive experience in commercializing communications solutions. TTGS also has deep cyber security research and development expertise supporting a variety of customers. University of Illinois at Urbana-Champaign (UIUC), a leader in the cyber security research for the power grid. UIUC brings unique experience in designing secure communication protocols to this project. Electric Power Research Institute (EPRI), an independent nonprofit that conducts research and development relating to the generation, delivery and use of electricity for the benefit of the public. EPRI brings to this effort its extensive technical expertise and its utility connections, with members representing more than 90 percent of the electricity generated and delivered in the United States. DTE Energy, the 10th largest electric utility in the US, which helps ensure that this project focuses on the needs of utilities and is rightly positioned to address the needs of the market place. We designed, developed, and demonstrated a modular and extensible ADEC-G (Agent-based, Distributed, Extensible Cybersecurity for the Grid) system for monitoring/detecting abnormal energy delivery systems (EDS) protocol usage and ensuring security coverage. Our approach consists of i. An online system with stateful model based checkers (SMBCs) that helps utilities monitor EDS protocol communication contexts and flag abnormal session behaviors; ii. An offline framework that security tool developers, operators, and auditors can use to verify security properties (leverages formal methods). The modular design of the ADEC-G online system enables its easy extension to cover added protocol features, to introduce new monitoring capabilities, and to apply to additional communication protocols. Its monitoring capabilities and user interface features also facilitate visibilities into ongoing communication patterns and quick grasps of suspicious communication activities. The offline framework provides a platform not only for rigorous validation of security coverage, but also for systematic refinement of checker design leveraging the counter traces generated by the model checking tool. The ADEC-G online monitoring/detection system and the offline validation framework are both operational and have been demonstrated in various settings. The ADEC-G online system has also been integrated into TTGS SecureSmart Managed Security Services offering and been employed to perform security assessment in a section of a utilitys operational network as well as in other Smart Grid security pilot project offerings. TTGS is also in discussions with several system integrators for incorporating the integrated SecureSmart Managed Security Services offering as the cyber security solution for the nce of Operations Technology (OT) and Information Technology (IT).

  5. MELTER OFF-GAS FLAMMABILITY ASSESSMENT FOR DWPF ALTERNATE REDUCTANT FLOWSHEET OPTIONS

    SciTech Connect (OSTI)

    Choi, A.

    2011-07-08

    Glycolic acid and sugar are being considered as potential candidates to substitute for much of the formic acid currently being added to the Defense Waste Processing Facility (DWPF) melter feed as a reductant. A series of small-scale melter tests were conducted at the Vitreous State Laboratory (VSL) in January 2011 to collect necessary data for the assessment of the impact of these alternate reductants on the melter off-gas flammability. The DM10 melter with a 0.021 m{sup 2} melt surface area was run with three different feeds which were prepared at SRNL based on; (1) the baseline formic/nitric acid flowsheet, (2) glycolic/formic/nitric acid flowsheet, and (3) sugar/formic/nitric acid flowsheet - these feeds will be called the baseline, glycolic, and sugar flowsheet feeds, respectively, hereafter. The actual addition of sugar to the sugar flowsheet feed was made at VSL before it was fed to the melter. For each feed, the DM10 was run under both bubbled (with argon) and non-bubbled conditions at varying melter vapor space temperatures. The goal was to lower its vapor space temperature from nominal 500 C to less than 300 C at 50 C increments and maintain steady state at each temperature at least for one hour, preferentially for two hours, while collecting off-gas data including CO, CO{sub 2}, and H{sub 2} concentrations. Just a few hours into the first test with the baseline feed, it was discovered that the DM10 vapor space temperature would not readily fall below 350 C simply by ramping up the feed rate as the test plan called for. To overcome this, ambient air was introduced directly into the vapor space through a dilution air damper in addition to the natural air inleakage occurring at the operating melter pressure of -1 inch H{sub 2}O. A detailed description of the DM10 run along with all the data taken is given in the report issued by VSL. The SRNL personnel have analyzed the DM10 data and identified 25 steady state periods lasting from 32 to 92 minutes for all six melter runs (bubbled and non-bubbled runs for each of the three feeds). The steady state selection was made by limiting the standard deviation of the average vapor space temperature readings from two bare thermocouples (TT-03 and TT-05) to less than 5 C in most cases at a constant feed rate. The steady state data thus selected were mass and heat balanced and the off-gas data were re-baselined to assess the flammability potential of each feed under the DWPF melter operating conditions. Efforts were made to extract as much information out of the data as possible necessary to extend the applicability of the existing baseline cold cap and off-gas combustion models to the glycolic and sugar flowsheet feeds. This report details the outcome of these activities.

  6. Top-pair production and decay at NLO matched with parton showers

    SciTech Connect (OSTI)

    Campbell, John M.; Ellis, R. Keith; Nason, Paolo; Re, Emanuele

    2015-04-21

    We present a next-to-leading order (NLO) calculation of tt production in hadronic collisions interfaced to shower generators according to the POWHEG method. We start from an NLO result from previous work, obtained in the zero width limit, where radiative corrections to both production and decays are included. The POWHEG interface required an extension of the POWHEG BOX framework, in order to deal with radiation from the decay of resonances. This extension is fully general (i.e. it can be applied in principle to any process considered in the zero width limit), and is here applied for the first time. In order to perform a realistic simulation, we introduce finite width effects using different approximations, that we validated by comparing with published exact NLO results. We have interfaced our POWHEG code to the PYTHIA8 shower Monte Carlo generator. At this stage, we dealt with novel issues related to the treatment of resonances, especially with regard to the initial scale for the shower that needs to be set appropriately. This procedure affects, for example, the fragmentation function of the b quark, that we have studied with particular attention. We believe that the tool presented here improves over previous generators for all aspects that have to do with top decays, and especially for the study of issues related to top mass measurements that involve B hadrons or b jets. The work presented here also constitutes a first step towards a fully consistent matching of NLO calculations involving intermediate resonances decaying into coloured particles, with parton showers.

  7. Search for flavour-changing neutral current top quark decays t ? Hq in pp collisions at ?s = 8 TeV with the ATLAS detector

    SciTech Connect (OSTI)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; Abulaiti, Y.; Acharya, B. S.; Adamczyk, L.; Adams, D. L.; Adelman, J.; Adomeit, S.; Adye, T.; Affolder, A. A.; Agatonovic-Jovin, T.; Agricola, J.; Aguilar-Saavedra, J. A.; Ahlen, S. P.; Ahmadov, F.; Aielli, G.; Akerstedt, H.; kesson, T. P. A.; Akimov, A. V.; Alberghi, G. L.; Albert, J.; Albrand, S.; Alconada Verzini, M. J.; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexander, G.; Alexopoulos, T.; Alhroob, M.; Alimonti, G.; Alio, L.; Alison, J.; Alkire, S. P.; Allbrooke, B. M. M.; Allport, P. P.; Aloisio, A.; Alonso, A.; Alonso, F.; Alpigiani, C.; Altheimer, A.; Alvarez Gonzalez, B.; lvarez Piqueras, D.; Alviggi, M. G.; Amadio, B. T.; Amako, K.; Amaral Coutinho, Y.; Amelung, C.; Amidei, D.; Amor Dos Santos, S. P.; Amorim, A.; Amoroso, S.; Amram, N.; Amundsen, G.; Anastopoulos, C.; Ancu, L. S.; Andari, N.; Andeen, T.; Anders, C. F.; Anders, G.; Anders, J. K.; Anderson, K. J.; Andreazza, A.; Andrei, V.; Angelidakis, S.; Angelozzi, I.; Anger, P.; Angerami, A.; Anghinolfi, F.; Anisenkov, A. V.; Anjos, N.; Annovi, A.; Antonelli, M.; Antonov, A.; Antos, J.; Anulli, F.; Aoki, M.; Aperio Bella, L.; Arabidze, G.; Arai, Y.; Araque, J. P.; Arce, A. T. H.; Arduh, F. A.; Arguin, J-F.; Argyropoulos, S.; Arik, M.; Armbruster, A. J.; Arnaez, O.; Arnold, H.; Arratia, M.; Arslan, O.; Artamonov, A.; Artoni, G.; Asai, S.; Asbah, N.; Ashkenazi, A.; sman, B.; Asquith, L.; Assamagan, K.; Astalos, R.; Atkinson, M.; Atlay, N. B.; Augsten, K.; Aurousseau, M.; Avolio, G.; Axen, B.; Ayoub, M. K.; Azuelos, G.; Baak, M. A.; Baas, A. E.; Baca, M. J.; Bacci, C.; Bachacou, H.; Bachas, K.; Backes, M.; Backhaus, M.; Bagiacchi, P.; Bagnaia, P.; Bai, Y.; Bain, T.; Baines, J. T.; Baker, O. K.; Baldin, E. M.; Balek, P.; Balestri, T.; Balli, F.; Balunas, W. K.; Banas, E.; Banerjee, Sw.; Bannoura, A. A. E.; Barak, L.; Barberio, E. L.; Barberis, D.; Barbero, M.; Barillari, T.; Barisonzi, M.; Barklow, T.; Barlow, N.; Barnes, S. L.; Barnett, B. M.; Barnett, R. M.; Barnovska, Z.; Baroncelli, A.; Barone, G.; Barr, A. J.; Barreiro, F.; Barreiro Guimares da Costa, J.; Bartoldus, R.; Barton, A. E.; Bartos, P.; Basalaev, A.; Bassalat, A.; Basye, A.; Bates, R. L.; Batista, S. J.; Batley, J. R.; Battaglia, M.; Bauce, M.; Bauer, F.; Bawa, H. S.; Beacham, J. B.; Beattie, M. D.; Beau, T.; Beauchemin, P. H.; Beccherle, R.; Bechtle, P.; Beck, H. P.; Becker, K.; Becker, M.; Beckingham, M.; Becot, C.; Beddall, A. J.; Beddall, A.; Bednyakov, V. A.; Bee, C. P.; Beemster, L. J.; Beermann, T. A.; Begel, M.; Behr, J. K.; Belanger-Champagne, C.; Bell, W. H.; Bella, G.; Bellagamba, L.; Bellerive, A.; Bellomo, M.; Belotskiy, K.; Beltramello, O.; Benary, O.; Benchekroun, D.; Bender, M.; Bendtz, K.; Benekos, N.; Benhammou, Y.; Benhar Noccioli, E.; Benitez Garcia, J. A.; Benjamin, D. P.; Bensinger, J. R.; Bentvelsen, S.; Beresford, L.; Beretta, M.; Berge, D.; Bergeaas Kuutmann, E.; Berger, N.; Berghaus, F.; Beringer, J.; Bernard, C.; Bernard, N. R.; Bernius, C.; Bernlochner, F. U.; Berry, T.; Berta, P.; Bertella, C.; Bertoli, G.; Bertolucci, F.; Bertsche, C.; Bertsche, D.; Besana, M. I.; Besjes, G. J.; Bessidskaia Bylund, O.; Bessner, M.; Besson, N.; Betancourt, C.; Bethke, S.; Bevan, A. J.; Bhimji, W.; Bianchi, R. M.; Bianchini, L.; Bianco, M.; Biebel, O.; Biedermann, D.; Biesuz, N. V.; Biglietti, M.; Bilbao De Mendizabal, J.; Bilokon, H.; Bindi, M.; Binet, S.; Bingul, A.; Bini, C.; Biondi, S.; Bjergaard, D. M.; Black, C. W.; Black, J. E.; Black, K. M.; Blackburn, D.; Blair, R. E.; Blanchard, J. -B.; Blanco, J. E.; Blazek, T.; Bloch, I.; Blocker, C.; Blum, W.; Blumenschein, U.; Blunier, S.; Bobbink, G. J.; Bobrovnikov, V. S.; Bocchetta, S. S.; Bocci, A.; Bock, C.; Boehler, M.; Bogaerts, J. A.; Bogavac, D.; Bogdanchikov, A. G.; Bohm, C.; Boisvert, V.; Bold, T.; Boldea, V.; Boldyrev, A. S.; Bomben, M.; Bona, M.; Boonekamp, M.; Borisov, A.; Borissov, G.; Borroni, S.; Bortfeldt, J.; Bortolotto, V.; Bos, K.; Boscherini, D.; Bosman, M.; Boudreau, J.; Bouffard, J.; Bouhova-Thacker, E. V.; Boumediene, D.; Bourdarios, C.; Bousson, N.; Boutle, S. K.; Boveia, A.; Boyd, J.; Boyko, I. R.; Bozic, I.; Bracinik, J.; Brandt, A.; Brandt, G.; Brandt, O.; Bratzler, U.; Brau, B.; Brau, J. E.; Braun, H. M.; Breaden Madden, W. D.; Brendlinger, K.; Brennan, A. J.; Brenner, L.; Brenner, R.; Bressler, S.; Bristow, T. M.; Britton, D.; Britzger, D.; Brochu, F. M.; Brock, I.; Brock, R.; Bronner, J.; Brooijmans, G.; Brooks, T.; Brooks, W. K.; Brosamer, J.; Brost, E.; Bruckman de Renstrom, P. A.; Bruncko, D.; Bruneliere, R.; Bruni, A.; Bruni, G.; Bruschi, M.; Bruscino, N.; Bryngemark, L.; Buanes, T.; Buat, Q.; Buchholz, P.; Buckley, A. G.

    2015-12-10

    A search for flavour-changing neutral current decays of a top quark to an uptype quark (q = u, c) and the Standard Model Higgs boson, where the Higgs boson decays to bb, is presented. The analysis searches for top quark pair events in which one top quark decays to Wb, with the W boson decaying leptonically, and the other top quark decays to Hq. The search is based on pp collisions at ?s = 8 TeV recorded in 2012 with the ATLAS detector at the CERN Large Hadron Collider and uses an integrated luminosity of 20.3 fb-1. Data are analysed in the lepton-plus-jets final state, characterised by an isolated electron or muon and at least four jets. The search exploits the high multiplicity of b-quark jets characteristic of signal events, and employs a likelihood discriminant that uses the kinematic differences between the signal and the background, which is dominated by tt? WbWb decays. No significant excess of events above the background expectation is found, and observed (expected) 95% CL upper limits of 0.56% (0.42%) and 0.61% (0.64%) are derived for the t ? Hc and t ? Hu branching ratios respectively. The combination of this search with other ATLAS searches in the H ? ?? and H ? WW*, ?? decay modes significantly improves the sensitivity, yielding observed (expected) 95% CL upper limits on the t ? Hc and t ? Hu branching ratios of 0.46% (0.25%) and 0.45% (0.29%) respectively. The corresponding combined observed (expected) upper limits on the |? tcH | and |? tuH | couplings are 0.13 (0.10) and 0.13 (0.10) respectively. As a result, these are the most restrictive direct bounds on tqH interactions measured so far.

  8. Thread-Level Parallelization and Optimization of NWChem for the Intel MIC Architecture

    SciTech Connect (OSTI)

    Shan, Hongzhang; Williams, Samuel; Jong, Wibe de; Oliker, Leonid

    2014-10-10

    In the multicore era it was possible to exploit the increase in on-chip parallelism by simply running multiple MPI processes per chip. Unfortunately, manycore processors' greatly increased thread- and data-level parallelism coupled with a reduced memory capacity demand an altogether different approach. In this paper we explore augmenting two NWChem modules, triples correction of the CCSD(T) and Fock matrix construction, with OpenMP in order that they might run efficiently on future manycore architectures. As the next NERSC machine will be a self-hosted Intel MIC (Xeon Phi) based supercomputer, we leverage an existing MIC testbed at NERSC to evaluate our experiments. In order to proxy the fact that future MIC machines will not have a host processor, we run all of our experiments in tt native mode. We found that while straightforward application of OpenMP to the deep loop nests associated with the tensor contractions of CCSD(T) was sufficient in attaining high performance, significant effort was required to safely and efficiently thread the TEXAS integral package when constructing the Fock matrix. Ultimately, our new MPI OpenMP hybrid implementations attain up to 65x better performance for the triples part of the CCSD(T) due in large part to the fact that the limited on-card memory limits the existing MPI implementation to a single process per card. Additionally, we obtain up to 1.6x better performance on Fock matrix constructions when compared with the best MPI implementations running multiple processes per card.

  9. Top-pair production and decay at NLO matched with parton showers

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Campbell, John M.; Ellis, R. Keith; Nason, Paolo; Re, Emanuele

    2015-04-21

    We present a next-to-leading order (NLO) calculation of tt production in hadronic collisions interfaced to shower generators according to the POWHEG method. We start from an NLO result from previous work, obtained in the zero width limit, where radiative corrections to both production and decays are included. The POWHEG interface required an extension of the POWHEG BOX framework, in order to deal with radiation from the decay of resonances. This extension is fully general (i.e. it can be applied in principle to any process considered in the zero width limit), and is here applied for the first time. In ordermoreto perform a realistic simulation, we introduce finite width effects using different approximations, that we validated by comparing with published exact NLO results. We have interfaced our POWHEG code to the PYTHIA8 shower Monte Carlo generator. At this stage, we dealt with novel issues related to the treatment of resonances, especially with regard to the initial scale for the shower that needs to be set appropriately. This procedure affects, for example, the fragmentation function of the b quark, that we have studied with particular attention. We believe that the tool presented here improves over previous generators for all aspects that have to do with top decays, and especially for the study of issues related to top mass measurements that involve B hadrons or b jets. The work presented here also constitutes a first step towards a fully consistent matching of NLO calculations involving intermediate resonances decaying into coloured particles, with parton showers.less

  10. Functional Polymorphisms of Base Excision Repair Genes XRCC1 and APEX1 Predict Risk of Radiation Pneumonitis in Patients With Non-Small Cell Lung Cancer Treated With Definitive Radiation Therapy

    SciTech Connect (OSTI)

    Yin Ming; Liao Zhongxing; Liu Zhensheng; Wang, Li-E; Gomez, Daniel; Komaki, Ritsuko; Wei Qingyi

    2011-11-01

    Purpose: To explore whether functional single nucleotide polymorphisms (SNPs) of base-excision repair genes are predictors of radiation treatment-related pneumonitis (RP), we investigated associations between functional SNPs of ADPRT, APEX1, and XRCC1 and RP development. Methods and Materials: We genotyped SNPs of ADPRT (rs1136410 [V762A]), XRCC1 (rs1799782 [R194W], rs25489 [R280H], and rs25487 [Q399R]), and APEX1 (rs1130409 [D148E]) in 165 patients with non-small cell lung cancer (NSCLC) who received definitive chemoradiation therapy. Results were assessed by both Logistic and Cox regression models for RP risk. Kaplan-Meier curves were generated for the cumulative RP probability by the genotypes. Results: We found that SNPs of XRCC1 Q399R and APEX1 D148E each had a significant effect on the development of Grade {>=}2 RP (XRCC1: AA vs. GG, adjusted hazard ratio [HR] = 0.48, 95% confidence interval [CI], 0.24-0.97; APEX1: GG vs. TT, adjusted HR = 3.61, 95% CI, 1.64-7.93) in an allele-dose response manner (Trend tests: p = 0.040 and 0.001, respectively). The number of the combined protective XRCC1 A and APEX1 T alleles (from 0 to 4) also showed a significant trend of predicting RP risk (p = 0.001). Conclusions: SNPs of the base-excision repair genes may be biomarkers for susceptibility to RP. Larger prospective studies are needed to validate our findings.

  11. Top-pair production and decay at NLO matched with parton showers

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Campbell, John M.; Ellis, R. Keith; Nason, Paolo; Re, Emanuele

    2015-04-21

    We present a next-to-leading order (NLO) calculation of tt¯ production in hadronic collisions interfaced to shower generators according to the POWHEG method. We start from an NLO result from previous work, obtained in the zero width limit, where radiative corrections to both production and decays are included. The POWHEG interface required an extension of the POWHEG BOX framework, in order to deal with radiation from the decay of resonances. This extension is fully general (i.e. it can be applied in principle to any process considered in the zero width limit), and is here applied for the first time. In ordermore » to perform a realistic simulation, we introduce finite width effects using different approximations, that we validated by comparing with published exact NLO results. We have interfaced our POWHEG code to the PYTHIA8 shower Monte Carlo generator. At this stage, we dealt with novel issues related to the treatment of resonances, especially with regard to the initial scale for the shower that needs to be set appropriately. This procedure affects, for example, the fragmentation function of the b quark, that we have studied with particular attention. We believe that the tool presented here improves over previous generators for all aspects that have to do with top decays, and especially for the study of issues related to top mass measurements that involve B hadrons or b jets. As a result, the work presented here also constitutes a first step towards a fully consistent matching of NLO calculations involving intermediate resonances decaying into coloured particles, with parton showers.« less

  12. High-pressure behavior and thermoelastic properties of niobium studied by in situ x-ray diffraction

    SciTech Connect (OSTI)

    Zou, Yongtao E-mail: yongtaozou6@gmail.com; Li, Baosheng; Qi, Xintong; Wang, Xuebing; Chen, Ting; Li, Xuefei; Welch, David

    2014-07-07

    In situ synchrotron energy dispersive x-ray diffraction (XRD) experiments on Nb have been conducted at pressures up to 6.4 GPa and temperatures up to 1073 K. From the pressure-volume-temperature measurements, thermoelastic parameters were derived for the first time for Nb based on the thermal pressure (?P{sub th}) equation of state (EOS), modified high-T Birch-Murnaghan EOS, and Mie-Grneisen-Debye EOS. With the pressure derivative of the bulk modulus K{sub T}{sup } fixed at 4.0, we obtained the ambient isothermal bulk modulus K{sub T0}=174(5) GPa, the temperature derivative of bulk modulus at constant pressure (?K{sub T}/?T){sub P}=-0.060(8) GPa K? and at constant volume (?K{sub T}/?T){sub V}=-0.046(8) GPa K?, the volumetric thermal expansivity ?{sub T}(T)=2.3(3)10??+0.3(2)10??T (K?), as well as the pressure dependence of thermal expansion (??/?P){sub T}=(?2.00.4)10?? K? GPa?. Fitting the present data to the Mie-Grneisen-Debye EOS with Debye temperature ??=276.6 K gives ??=1.27(8) and K{sub T0}=171(3) GPa at a fixed value of q=3.0. The ambient isothermal bulk modulus and Grneisen parameter derived from this work are comparable to previously reported values from both experimental and theoretical studies. An in situ high-resolution, angle dispersive XRD study on Nb did not indicate any anomalous behavior related to pressure-induced electronic topological transitions at ~5 GPa as has been reported previously.

  13. Development of a novel solvent for the simultaneous separation of strontium and cesium from dissolved Spent Nuclear Fuel solutions

    SciTech Connect (OSTI)

    Catherine L. Riddle; John D. Baker; Jack D. Law; Christopher A. McGrath; David H. Meikrantz; Bruce J. Mincher; Dean R. Peterman; Terry A. Todd

    2004-10-01

    The recovery of Cs and Sr from acidic solutions by solvent extraction has been investigated. The goal of this project was to develop an extraction process to remove Cs and Sr from high-level waste in an effort to reduce the heat loading in storage. Solvents for the extraction of Cs and Sr separately have been used on both caustic and acidic spent nuclear fuel waste in the past. The objective of this research was to find a suitable solvent for the extraction of both Cs and Sr simultaneously from acidic nitrate media. The solvents selected for this research possess good stability and extraction behavior when mixed together. The extraction experiments were performed with 4 ,4,(5 )-Di-(tbutyldicyclohexano)- 18-crown-6 {DtBuCH18C6}, Calix[4]arene-bis-(tert-octylbenzocrown-6) {BOBCalixC6} and 1-(2,2,3,3-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol {Cs-7SB modifier} in a branched aliphatic kerosene {Isopar L}. The BOBCalixC6 and Cs-7SB modifier were developed at Oak Ridge National Laboratory (ORNL) by Bonnesen et al. [1]. The values obtained from the SREX solvent for DSr in 1 M nitric acid ranged from 0.7 to 2.2 at 25oC and 10oC respectively. The values for DCs in 1 M nitric acid with the CSSX solvent ranged from 8.0 to 46.0 at 25oC and 10oC respectively. A new mixed solvent, developed at the Idaho National Engineering and Environmental Laboratory (INEEL) by Riddle et al. [2], showed distributions for Sr ranging from 8.8 to 17.4 in 1 M nitric acid at 25oC and 10oC respectively. The DCs for the mixed solvent ranged from 7.7 to 20.2 in 1 M nitric acid at 25oC to 10oC respectively. The unexpectedly high distributions for Sr at both 25oC and 10oC show a synergy in the mixed solvent. The DCs, although lower than with CSSX solvent, still showed good extraction behavior.

  14. Low-Cost High-Concentration Photovoltaic Systems for Utility Power Generation

    SciTech Connect (OSTI)

    McConnell, R.; Garboushian, V.; Gordon, R.; Dutra, D.; Kinsey, G.; Geer, S.; Gomez, H.; Cameron, C.

    2012-03-31

    Under DOE's Technology Pathway Partnership (TPP) program, Amonix, Inc. developed a new generation of high-concentration photovoltaic systems using multijunction technology and established the manufacturing capacity needed to supply multi-megawatt power plants buing using the new Amonix 7700-series solar energy systems. For this effort, Amonix Collaborated with a variety of suppliers and partners to complete project tasks. Subcontractors included: Evonik/Cyro; Hitek; the National Renewable Energy Laboratory (NREL); Raytech; Spectrolab; UL; University of Nevada, Las Vegas; and TUV Rheinland PTL. The Amonix TPP tasks included: Task 1: Multijunction Cell Optimization for Field Operation, Task 2: Fresnel Lens R&D, Task 3: Cell Package Design & Production, Task 4: Standards Compliance and Reliability Testing, Task 5: Receiver Plate Production, Task 6: MegaModule Performance, Task 7: MegaModule Cost Reduction, Task 8: Factory Setup and MegaModule Production, Task 9: Tracker and Tracking Controller, Task 10: Installation and Balance of System (BOS), Task 11: Field Testing, and Task 12: Solar Advisor Modeling and Market Analysis. Amonix's TPP addressed nearly the complete PV value chain from epitaxial layer design and wafer processing through system design, manufacturing, deployment and O&M. Amonix has made progress toward achieving these reduced costs through the development of its 28%+ efficient MegaModule, reduced manufacturing and installation cost through design for manufacturing and assembly, automated manufacturing processes, and reduced O&M costs. Program highlights include: (1) Optimized multijunction cell and cell package design to improve performance by > 10%; (2) Updated lens design provided 7% increased performance and higher concentration; (3) 28.7% DC STC MegaModule efficiency achieved in Phase II exceeded Phase III performance goal; (4) New 16' focal length MegaModule achieved target materials and manufacturing cost reduction; (5) Designed and placed into production 25 MW/yr manufacturing capacity for complete MegaModules, including cell packages, receiver plates, and structures with lenses; (6) Designed and deployed Amonix 7700 series systems rated at 63 kW PTC ac and higher. Based on an LCOE assessment using NREL's Solar Advisor Model, Amonix met DOE's LCOE targets: Amonix 2011 LCOE 12.8 cents/kWh (2010 DOE goal 10-15); 2015 LCOE 6.4 cents/kWh (2015 goal 5-7) Amonix and TPP participants would like to thank the U.S. Department of Energy Solar Energy Technology Program for funding received under this program through Agreement No. DE-FC36-07GO17042.

  15. Optimization of combined delayed neutron and differential die-away prompt neutron signal detection for characterization of spent nuclear fuel assemblies

    SciTech Connect (OSTI)

    Blanc, Pauline; Tobin, Stephen J; Croft, Stephen; Menlove, Howard O; Swinhoe, M; Lee, T

    2010-12-02

    The Next Generation Safeguards Initiative (NGSI) of the U.S. Department of Energy (DOE) has funded multiple laboratories and universities to develop a means to accurately quantify the Plutonium (Pu) mass in spent nuclear fuel assemblies and ways to also detect potential diversion of fuel pins. Delayed Neutron (DN) counting provides a signature somewhat more sensitive to {sup 235}U than Pu while Differential Die-Away (DDA) is complementary in that it has greater sensitivity to Pu. The two methods can, with care, be combined into a single instrument which also provides passive neutron information. Individually the techniques cannot robustly quantify the Pu content but coupled together the information content in the signatures enables Pu quantification separate to the total fissile content. The challenge of merging DN and DDA, prompt neutron (PN) signal, capabilities in the same design is the focus of this paper. Other possibilities also suggest themselves, such as a direct measurement of the reactivity (multiplication) by either the boost in signal obtained during the active interrogation itself or by the extension of the die-away profile. In an early study, conceptual designs have been modeled using a neutron detector comprising fission chambers or 3He proportional counters and a {approx}14 MeV neutron Deuterium-Tritium (DT) generator as the interrogation source. Modeling was performed using the radiation transport code Monte Carlo N-Particles eXtended (MCNPX). Building on this foundation, the present paper quantifies the capability of a new design using an array of {sup 3}He detectors together with fission chambers to optimize both DN and PN detections and active characterization, respectively. This new design was created in order to minimize fission in {sup 238}U (a nuisance DN emitter), to use a realistic neutron generator, to reduce the cost and to achieve near spatial interrogation and detection of the DN and PN, important for detection of diversion, all within the constraints of a single practical instrument. Both DN and PN detections are active techniques using the signal from the most prominent fissile isotopes of spent nuclear fuel that respond the best to a slow neutron interrogation, {sup 235}U, {sup 239}U and {sup 241}PU. The performance is characterized against a library of 64 assemblies and 40 diversion scenarios at different burnup (BU), cooling-time (CT) and initial enrichment (IE) in fresh water.

  16. TANK 50 BATCH 0 SALTSTONE FORMULATION CONFIRMATION

    SciTech Connect (OSTI)

    Langton, C.

    2006-06-05

    Savannah River National Laboratory (SRNL) personnel were requested to confirm the Tank 50 Batch 0 grout formulation per Technical Task Request, SSF-TTR-2006-0001 (task 1 of 2) [1]. Earlier Batch 0 formulation testing used a Tank 50 sample collected in September 2005 and is described elsewhere [2]. The current testing was performed using a sample of Tank 50 waste collected in May 2006. This work was performed according to the Technical Task and Quality Assurance Plan (TT/QAP), WSRC-RP-2006-00594 [3]. The salt solution collected from Tank 50 in May 2006 contained approximately 3 weight percent more solids than the sample collected in September 2005. The insoluble solids took longer to settle in the new sample which was interpreted as indicating finer particles in the current sample. The saltstone formulation developed for the September 2005 Tank 50 Batch 0 sample was confirmed for the May 2006 sample with one minor exception. Saltstone prepared with the Tank 50 sample collected in May 2006 required 1.5 times more Daratard 17 set retarding admixture than the saltstone prepared with the September In addition, a sample prepared with lower shear mixing (stirring with a spatula) had a higher plastic viscosity (57 cP) than samples made with higher shear mixing in a blender (23cP). The static gel times of the saltstone slurries made with low shear mixing were also shorter ({approx}32 minutes) than those for comparable samples made in the blender ({approx}47 minutes). The addition of the various waste streams (ETP, HEU-HCAN, and GPE-HCAN) to Tank 50 from September 2005 to May 2006 has increased the amount of set retarder, Daratard 17, required for processing saltstone slurries through the Saltstone facility. If these streams are continued to be added to Tank 50, the quantity of admixtures required to maintain the same processing conditions for the Saltstone facility will probably change and additional testing is recommended to reconfirm the Tank 50 Saltstone formulation.

  17. Well ER-6-1 Tracer Test Analysis: Yucca Flat, Nevada Test Site, Nye County, Nevada, Rev. No.: 0

    SciTech Connect (OSTI)

    Greg Ruskauff

    2006-09-01

    The ER-6-1 multiple-well aquifer test-tracer test (MWAT-TT) investigated groundwater flow and transport processes relevant to the transport of radionuclides from sources on the Nevada Test Site (NTS) through the lower carbonate aquifer (LCA) hydrostratigraphic unit (HSU). The LCA, which is present beneath much of the NTS, is the principal aquifer for much of southern Nevada. This aquifer consists mostly of limestone and dolomite, and is pervasively fractured. Groundwater flow in this aquifer is primarily in the fractures, and the hydraulic properties are primarily related to fracture frequency and fracture characteristics (e.g., mineral coatings, aperture, connectivity). The objective of the multiple-well aquifer test (MWAT) was to determine flow and hydraulic characteristics for the LCA in Yucca Flat. The data were used to derive representative flow model and parameter values for the LCA. The items of specific interest are: Hydraulic conductivity; Storage parameters; Dual-porosity behavior; and Fracture flow characteristics. The objective of the tracer transport experiment was to evaluate the transport properties and processes of the LCA and to derive representative transport parameter values for the LCA. The properties of specific interest are: Effective porosity; Matrix diffusion; Longitudinal dispersivity; Adsorption characteristics; and Colloid transport characteristics. These properties substantially control the rate of transport of contaminants in the groundwater system and concentration distributions. To best support modeling at the scale of the corrective action unit (CAU), these properties must be investigated at the field scale. The processes represented by these parameters are affected by in-situ factors that are either difficult to investigate at the laboratory scale or operate at a much larger scale than can be reproduced in the laboratory. Measurements at the field scale provide a better understanding of the effective average parameter values. The scale of this tracer test is still small compared to the scale of a CAU, but is of sufficient scale to be generally representative of the processes that affect in-situ transport. The scale of the tracer test undertaken is limited by the rate of transport in the formation and the resultant time frame required for completing such a test. The measurements at the field scale will provide information for relating laboratory measurements for transport processes to the larger scale. This report describes the analysis of the tracer test data and development of a conceptual model of transport in the LCA in Yucca Flat.

  18. Search for flavour-changing neutral current top quark decays t → Hq in pp collisions at √s = 8 TeV with the ATLAS detector

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; et al

    2015-12-10

    A search for flavour-changing neutral current decays of a top quark to an uptype quark (q = u, c) and the Standard Model Higgs boson, where the Higgs boson decays to bb¯, is presented. The analysis searches for top quark pair events in which one top quark decays to Wb, with the W boson decaying leptonically, and the other top quark decays to Hq. The search is based on pp collisions at √s = 8 TeV recorded in 2012 with the ATLAS detector at the CERN Large Hadron Collider and uses an integrated luminosity of 20.3 fb-1. Data are analysedmore » in the lepton-plus-jets final state, characterised by an isolated electron or muon and at least four jets. The search exploits the high multiplicity of b-quark jets characteristic of signal events, and employs a likelihood discriminant that uses the kinematic differences between the signal and the background, which is dominated by tt¯→ WbWb decays. No significant excess of events above the background expectation is found, and observed (expected) 95% CL upper limits of 0.56% (0.42%) and 0.61% (0.64%) are derived for the t → Hc and t → Hu branching ratios respectively. The combination of this search with other ATLAS searches in the H → γγ and H → WW*, ττ decay modes significantly improves the sensitivity, yielding observed (expected) 95% CL upper limits on the t → Hc and t → Hu branching ratios of 0.46% (0.25%) and 0.45% (0.29%) respectively. The corresponding combined observed (expected) upper limits on the |λ tcH | and |λ tuH | couplings are 0.13 (0.10) and 0.13 (0.10) respectively. As a result, these are the most restrictive direct bounds on tqH interactions measured so far.« less

  19. Temperature-dependent oxygen release, intercalation behaviour and catalytic properties of V{sub 2}O{sub 5}.xNb{sub 2}O{sub 5} compounds

    SciTech Connect (OSTI)

    Boerrnert, Carina; Zosel, Jens; Polte, Annette; Wenzel, Roswitha; Guth, Ulrich; Langbein, Hubert

    2011-11-15

    Graphical abstract: Temperature dependent oxygen loss and uptake of V{sub 2,38}Nb{sub 10,7}O{sub 32,7} in N{sub 2} (p(O{sub 2}) = 4 x 10{sup -5} bar) and IR spectra of gas mixtures after the reactor with V{sub 2,38}Nb{sub 10,7}O{sub 32,7} (A = 16.1 m{sup 2}/g) and propane. Highlights: {yields} V{sub 2}O{sub 5}.xNb{sub 2}O{sub 5} complex oxide compounds as catalysts. {yields} The (V, Nb){sub 2}O{sub 5} phases are able to a reversible release and uptake of oxygen without a structural variation. {yields} Metastable (V, Nb){sub 2}O{sub 5} phases are able to catalyse the oxidative dehydrogenation of propane and propene. {yields} Thermodynamically stable VNb{sub 9}O{sub 25} phase shows no measurable catalytic activity. -- Abstract: In order to investigate the catalytic properties, V{sub 2,38}Nb{sub 10,7}O{sub 32,7}, VNb{sub 9}O{sub 25} and solid solutions of V{sub 2}O{sub 5} in TT-Nb{sub 2}O{sub 5} were prepared by thermal decomposition of freeze-dried oxalate precursors. The samples were characterised by X-ray diffraction and surface area determination. The crystalline samples are capable of the intercalation of sodium and lithium ions from solution. Above a temperature of about 500 {sup o}C, in dependence on the oxygen partial pressure a reversible release and uptake of oxygen without a structural variation takes place. The catalytic properties have been evaluated for the oxidative dehydrogenation (ODH) of propane and propene. There are only small differences in the catalytic activity of the different crystalline samples. Because of the relative high starting temperature, a selective catalytic oxidation of propane to propene is hardly observed.

  20. Enhanced response of an oligonucleotide-based biosensor to environmental mercury

    SciTech Connect (OSTI)

    Edenborn, H.M.

    2006-10-01

    One environmental pollutant of particular relevance to the coal-generated power industry is mercury. Power plants in the U.S., led by Texas, Ohio, Pennsylvania, Indiana, and Alabama, collectively emitted over 90,000 pounds of mercury into the air in 2003. Calls for increased mercury monitoring activities have come from many groups concerned with environmental contamination and mercury bioconcentration in fish. Additionally, the benefits of improvements in the reduction of mercury emissions from existing power plants cannot be seriously evaluated without extensive monitoring of the environment. Low in situ mercury concentrations and the expense of traditional laboratory analyses currently limit such routine and effective monitoring. Microbial biosensors sensitive to mercury have been developed that quantitatively produce light in response to the amount of mercury (II) entering the cells. However, these sensors are typically difficult to prepare, can have long lag times between initial exposure and subsequent light emission, and are difficult to use in the field. Whole cell biosensors using living bacteria also require attention to the growth requirements of the cells, as well as complications brought on by the presence of other toxic compounds in addition to mercury. A molecular beacon sensor for mercury (II) reported by Ono and Togashi (Angew. Chem. Int. Ed. 2004, 43:4300-4302.) was modified to enhance its sensitivity and fluorescence response. The basic detection method involves the selective binding of mercury ions to thymine-thymine (T-T) base pairs in DNA duplexes. An oligonucleotide sequence in the sensor changes its conformation upon binding with mercury ions, and causes a fluorophore at one end of the oligonucleotide sequence to come in proximity with a quencher molecule attached to the other end. Enhanced fluorescence resonance energy transfer (FRET) results in a decrease in the intensity of the fluorescence spectrum. The use of fluorescein as a harvester fluorophore and alternative emitter fluorophores dramatically increased the sensitivity of the sensor. The fluorescence spectrum generated by this sensor is analyzed using a field spectrofluorometer, and the analytical approach may be useful in environmental mercury monitoring activities.

  1. Importance of proper renormalization scale-setting for QCD testing at colliders

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wu, Xing-Gang; Wang, Sheng-Quan; Brodsky, Stanley J.

    2015-12-22

    A primary problem affecting perturbative quantum chromodynamic (pQCD) analyses is the lack of a method for setting the QCD running-coupling renormalization scale such that maximally precise fixed-order predictions for physical observables are obtained. The Principle of Maximum Conformality (PMC) eliminates the ambiguities associated with the conventional renormalization scale-setting procedure, yielding predictions that are independent of the choice of renormalization scheme. The QCD coupling scales and the effective number of quark flavors are set order-by-order in the pQCD series. The PMC has a solid theoretical foundation, satisfying the standard renormalization group invariance condition and all of the self-consistency conditions derived frommore » the renormalization group. The PMC scales at each order are obtained by shifting the arguments of the strong force coupling constant αs to eliminate all non-conformal {βi} terms in the pQCD series. The {βi} terms are determined from renormalization group equations without ambiguity. The correct behavior of the running coupling at each order and at each phase-space point can then be obtained. The PMC reduces in the NC → 0 Abelian limit to the Gell-Mann-Low method. In this brief report, we summarize the results of our recent application of the PMC to a number of collider processes, emphasizing the generality and applicability of this approach. A discussion of hadronic Z decays shows that, by applying the PMC, one can achieve accurate predictions for the total and separate decay widths at each order without scale ambiguities. We also show that, if one employs the PMC to determine the top-quark pair forward-backward asymmetry at the next-to-next-to-leading order level, one obtains a comprehensive, self-consistent pQCD explanation for the Tevatron measurements of the asymmetry. This accounts for the “increasing-decreasing” behavior observed by the D0 collaboration for increasing tt invariant mass. At lower energies, the angular distributions of heavy quarks can be used to obtain a direct determination of the heavy quark potential. A discussion of the angular distributions of massive quarks and leptons is also presented, including the fermionic component of the two-loop corrections to the electromagnetic form factors. These results demonstrate that the application of the PMC systematically eliminates a major theoretical uncertainty for pQCD predictions, thus increasing collider sensitivity to possible new physics beyond the Standard Model.« less

  2. Importance of proper renormalization scale-setting for QCD testing at colliders

    SciTech Connect (OSTI)

    Wu, Xing-Gang; Wang, Sheng-Quan; Brodsky, Stanley J.

    2015-12-22

    A primary problem affecting perturbative quantum chromodynamic (pQCD) analyses is the lack of a method for setting the QCD running-coupling renormalization scale such that maximally precise fixed-order predictions for physical observables are obtained. The Principle of Maximum Conformality (PMC) eliminates the ambiguities associated with the conventional renormalization scale-setting procedure, yielding predictions that are independent of the choice of renormalization scheme. The QCD coupling scales and the effective number of quark flavors are set order-by-order in the pQCD series. The PMC has a solid theoretical foundation, satisfying the standard renormalization group invariance condition and all of the self-consistency conditions derived from the renormalization group. The PMC scales at each order are obtained by shifting the arguments of the strong force coupling constant αs to eliminate all non-conformal {βi} terms in the pQCD series. The {βi} terms are determined from renormalization group equations without ambiguity. The correct behavior of the running coupling at each order and at each phase-space point can then be obtained. The PMC reduces in the NC → 0 Abelian limit to the Gell-Mann-Low method. In this brief report, we summarize the results of our recent application of the PMC to a number of collider processes, emphasizing the generality and applicability of this approach. A discussion of hadronic Z decays shows that, by applying the PMC, one can achieve accurate predictions for the total and separate decay widths at each order without scale ambiguities. We also show that, if one employs the PMC to determine the top-quark pair forward-backward asymmetry at the next-to-next-to-leading order level, one obtains a comprehensive, self-consistent pQCD explanation for the Tevatron measurements of the asymmetry. This accounts for the “increasing-decreasing” behavior observed by the D0 collaboration for increasing tt invariant mass. At lower energies, the angular distributions of heavy quarks can be used to obtain a direct determination of the heavy quark potential. A discussion of the angular distributions of massive quarks and leptons is also presented, including the fermionic component of the two-loop corrections to the electromagnetic form factors. These results demonstrate that the application of the PMC systematically eliminates a major theoretical uncertainty for pQCD predictions, thus increasing collider sensitivity to possible new physics beyond the Standard Model.

  3. Transition metal complexes of oxazolinylboranes and cyclopentadienyl-bis(oxazolinyl)borates: Catalysts for asymmetric olefin hydroamination and acceptorless alcohol decarbonylation

    SciTech Connect (OSTI)

    Manna, Kuntal [Ames Laboratory

    2012-12-17

    The research presented and discussed in this dissertation involves the synthesis of transition metal complexes of oxazolinylboranes and cyclopentadienyl-bis(oxazolinyl)borates, and their application in catalytic enantioselective olefin hydroamination and acceptorless alcohol decarbonylation. Neutral oxazolinylboranes are excellent synthetic intermediates for preparing new borate ligands and also developing organometallic complexes. Achiral and optically active bis(oxazolinyl)phenylboranes are synthesized by reaction of 2-lithio-2-oxazolide and 0.50 equiv of dichlorophenylborane. These bis(oxazolinyl)phenylboranes are oligomeric species in solid state resulting from the coordination of an oxazoline to the boron center of another borane monomer. The treatment of chiral bis(oxazolinyl)phenylboranes with sodium cyclopentadienide provide optically active cyclopentadienyl-bis(oxazolinyl)borates H[PhB(C{sub 5}H{sub 5})(Ox{sup R}){sub 2}] [Ox{sup R} = Ox{sup 4S-iPr,Me2}, Ox{sup 4R-iPr,Me2}, Ox{sup 4S-tBu]}. These optically active proligands react with an equivalent of M(NMe{sub 2}){sub 4} (M = Ti, Zr, Hf) to afford corresponding cyclopentadienyl-bis(oxazolinyl)borato group 4 complexes {PhB(C{sub 5}H{sub 4})(Ox{sup R}){sub 2}}M(NMe{sub 2}){sub 2} in high yields. These group 4 compounds catalyze cyclization of aminoalkenes at room temperature or below, providing pyrrolidine, piperidine, and azepane with enantiomeric excesses up to 99%. Our mechanistic investigations suggest a non-insertive mechanism involving concerted C?N/C?H bond formation in the turnover limiting step of the catalytic cycle. Among cyclopentadienyl-bis(oxazolinyl)borato group 4 catalysts, the zirconium complex {PhB(C{sub 5}H{sub 4})(Ox{sup 4S-iPr,Me2}){sub 2}}Zr(NMe{sub 2}){sub 2} ({S-2}Zr(NMe{sub 2}){sub 2}) displays highest activity and enantioselectivity. Interestingly, {S-2}Zr(NMe{sub 2}){sub 2} also desymmetrizes olefin moieties of achiral non-conjugated aminodienes and aminodiynes during cyclization. The cyclization of aminodienes catalyzed by {S-2}Zr(NMe{sub 2}){sub 2} affords diastereomeric mixture of cis and trans cylic amines with high diasteromeric ratios and excellent enantiomeric excesses. Similarly, the desymmetrization of alkyne moieties in {S-2}Zr(NMe{sub 2}){sub 2}-catalyzed cyclization of aminodiynes provides corresponding cyclic imines bearing quaternary stereocenters with enantiomeric excesses up to 93%. These stereoselective desymmetrization reactions are significantly affected by concentration of the substrate, temperature, and the presence of a noncyclizable primary amine. In addition, both the diastereomeric ratios and enantiomeric excesses of the products are markedly enhanced by N-deuteration of the substrates. Notably, the cationic zirconium-monoamide complex [{S-2}Zr(NMe{sub 2})][B(C{sub 6}F{sub 5}){sub 4}] obtained from neutral {S-2}Zr(NMe{sub 2}){sub 2} cyclizes primary aminopentenes providing pyrrolidines with S-configuration; whereas {S-2}Zr(NMe{sub 2}){sub 2} provides R-configured pyrrolidines. The yttrium complex {S-2}YCH{sub 2}SiMe{sub 3} also affords S-configured pyrrolidines by cyclization of aminopentenes, however the enantiomeric excesses of products are low. An alternative optically active yttrium complex {PhB(C{sub 5}H{sub 4})(Ox{sup 4S-tBu}){sub 2}}YCH{sub 2}SiMe{sub 3} ({S-3}YCH{sub 2}SiMe{sub 3}) is synthesized, which displays highly enantioselective in the cyclization of aminoalkenes at room temperature affording S-configured cyclic amines with enantiomeric excesses up to 96%. A noninsertive mechanism involving a six-membered transition state by a concerted C?N bond formation and N?H bond cleavage is proposed for {S-3}YCH{sub 2}SiMe{sub 3} system based on the kinetic, spectroscopic, and stereochemical features. In the end, a series of bis- and tris(oxazolinyl)borato iridium and rhodium complexes are synthesized with bis(oxazolinyl)phenylborane [PhB(Ox{sup Me2}){sub 2}]{sub n}, tris(oxazolinyl)borane [B(Ox{sup Me2}){sub 3}]n, and tris(4,4-dimethyl-2-oxazolinyl)phenylborate [To{sup M}]{sup ?}. All these new an

  4. Synthesis of main group, rare-earth, and d{sup 0} metal complexes containing beta-hydrogen

    SciTech Connect (OSTI)

    Yan, Ka King

    2013-05-02

    A series of organometallic compounds containing the tris(dimethylsilyl)methyl ligand are described. The potassium carbanions KC(SiHMe{sub 2}){sub 3} and KC(SiHMe{sub 2}){sub 3}TMEDA are synthesized by deprotonation of the hydrocarbon HC(SiHMe{sub 2}){sub 3} with potassium benzyl. KC(SiHMe{sub 2}){sub 3}TMEDA crystallizes as a dimer with two types of three-center-two-electron KH- Si interactions. Homoleptic Ln(III) tris(silylalkyl) complexes containing ?-SiH groups M{C(SiHMe{sub 2}){sub 3}}{sub 3} (Ln = Y, Lu, La) are synthesized from salt elimination of the corresponding lanthanide halide and 3 equiv. of KC(SiHMe{sub 2}){sub 3}. The related reactions with Sc yield bis(silylalkyl) ate-complexes containing either LiCl or KCl. The divalent calcium and ytterbium compounds M{C(SiHMe{sub 2}){sub 3}}{sub 2}L (M = Ca, Yb; L = THF{sub 2} or TMEDA) are prepared from MI{sub 2} and 2 equiv of KC(SiHMe{sub 2}){sub 3}. The compounds M{C(SiHMe{sub 2}){sub 3}}{sub 2}L (M = Ca, Yb; L = THF{sub 2} or TMEDA) and La{C(SiHMe{sub 2}){sub 3}}{sub 3} react with 1 equiv of B(C{sub 6}F{sub 5}){sub 3} to give 1,3- disilacyclobutane {Me2Si-C(SiHMe2)2}2 and MC(SiHMe2)3HB(C6F5)3L, and La{C(SiHMe{sub 2}){sub 3}}{sub 2}HB(C{sub 6}F{sub 5}){sub 3}, respectively. The corresponding reactions of Ln{C(SiHMe{sub 2}){sub 3}}{sub 3} (Ln = Y, Lu) give the ?-SiH abstraction product [{(Me{sub 2}HSi){sub 3}C}{sub 2}LnC(SiHMe{sub 2}){sub 2}SiMe{sub 2}][HB(C{sub 6}F{sub 5}){sub 3}] (Ln = Y, Lu), but the silene remains associated with the Y or Lu center. The abstraction reactions of M{C(SiHMe{sub 2}){sub 3}}{sub 2}L (M = Ca, Yb; L = THF{sub 2 }or TMEDA) and Ln{C(SiHMe{sub 2}){sub 3}}{sub 3} (Ln = Y, Lu, La) and 2 equiv of B(C{sub 6}F{sub 5}){sub 3} give the expected dicationic M{HB(C{sub 6}F{sub 5}){sub 3}}{sub 2}L (M = Ca, Yb; L = THF{sub 2} or TMEDA) and dicationic mono(silylalkyl) LnC(SiHMe{sub 2}){sub 3}{HB(C{sub 6}F{sub 5}){sub 3}}{sub 2} (Ln = Y, Lu, La), respectively. Salt metathesis reactions of Cp{sub 2}(NR{sub 2})ZrX (X = Cl, I, OTf; R = t-Bu, SiHMe{sub 2}) and lithium hydrosilazide ultimately afford hydride products Cp{sub 2}(NR{sub 2})ZrH that suggest unusual ?-hydrogen elimination processes. A likely intermediate in one of these reactions, Cp{sub 2}Zr[N(SiHMe{sub 2})t-Bu][N(SiHMe{sub 2}){sub 2}], is isolated under controlled synthetic conditions. Addition of alkali metal salts to this zirconium hydrosilazide compound produces the corresponding zirconium hydride. However as conditions are varied, a number of other pathways are also accessible, including C-H/Si-H dehydrocoupling, ?-abstraction of a CH, and ?-abstraction of a SiH. Our observations suggest that the conversion of (hydrosilazido)zirconocene to zirconium hydride does not follow the classical four-center ?- elimination mechanism. Elimination and abstraction reactions dominate the chemistry of ligands containing ?- hydrogen. In contrast, Cp{sub 2}Zr{N(SiHMe{sub 2}){sub 2}}H and Cp{sub 2}Zr{N(SiHMe{sub 2}){sub 2}}Me undergo selective ?-CH bond activation to yield the azasilazirconacycle Cp{sub 2Zr}{?{sup 2}-N(SiHMe{sub 2})SiHMeCH{sub 2}}, even though there are reactive ?-hydrogen available for abstraction. The ?-SiH groups in metallacycle provide access to new pathways for sixteen-electron zirconium alkyl compounds, in which Cp{sub 2}Zr{?{sup 2}-N(SiHMe{sub 2})SiHMeCH{sub 2}} undergoes a rare ?-bond metathesis reaction with ethylene. The resulting vinyl intermediate undergoes ?-hydrogen abstraction to reform ethylene and a silanimine zirconium species that reacts with ethylene to give a metallacyclopentane as the isolated product. The pendent ?-SiH in metallocycle also reacts with paraformaldehyde through an uncatalyzed hydrosilylation to form an exocyclic methoxysilyl moiety, while the zirconium-carbon bond in metallocycle is surprisingly inert toward formaldehyde. Still, the Zr-C moiety in metallocycle is available for chemistry, and it interacts with the carbon monoxide and strong electrophile B(C{sub 6}F{sub 5}){sub 3} to provide Cp{sub 2}Zr[?{sup 2}- OC(=CH{sub 2})SiMeHN(SiHMe

  5. DEVELOPMENT OF THE BULK TRITIUM SHIPPING PACKAGING

    SciTech Connect (OSTI)

    Blanton, P.; Eberl, K.

    2008-09-14

    A new radioactive shipping packaging for transporting bulk quantities of tritium, the Bulk Tritium Shipping Package (BTSP), has been designed for the Department of Energy (DOE) as a replacement for a package designed in the early 1970s. This paper summarizes significant design features and describes how the design satisfies the regulatory safety requirements of the Code of Federal Regulations and the International Atomic Energy Agency. The BTSP design incorporates many improvements over its predecessor by implementing improved testing, handling, and maintenance capabilities, while improving manufacturability and incorporating new engineered materials. This paper also discusses the results from testing of the BTSP to 10 CFR 71 Normal Conditions of Transport and Hypothetical Accident Condition events. The programmatic need of the Department of Energy (DOE) to ship bulk quantities of tritium has been satisfied since the late 1970s by the UC-609 shipping package. The current Certificate of Conformance for the UC-609, USA/9932/B(U) (DOE), will expire in late 2011. Since the UC-609 was not designed to meet current regulatory requirements, it will not be recertified and thereby necessitates a replacement Type B shipping package for continued DOE tritium shipments in the future. A replacement tritium packaging called the Bulk Tritium Shipping Package (BTSP) is currently being designed and tested by Savannah River National Laboratory (SRNL). The BTSP consists of two primary assemblies, an outer Drum Assembly and an inner Containment Vessel Assembly (CV), both designed to mitigate damage and to protect the tritium contents from leaking during the regulatory Hypothetical Accident Condition (HAC) events and during Normal Conditions of Transport (NCT). During transport, the CV rests on a silicone pad within the Drum Liner and is covered with a thermal insulating disk within the insulated Drum Assembly. The BTSP packaging weighs approximately 500 lbs without contents and is 50-1/2 inches high by 24-1/2 inches in outside diameter. With contents the gross weight of the BTSP is 650 lbs. The BTSP is designed for the safe shipment of 150 grams of tritium in a solid or gaseous state. To comply with the federal regulations that govern Type B shipping packages, the BTSP is designed so that it will not lose tritium at a rate greater than the limits stated in 10CFR 71.51 of 10{sup -6} A2 per hour for the 'Normal Conditions of Transport' (NCT) and an A2 in 1 week under 'Hypothetical Accident Conditions' (HAC). Additionally, since the BTSP design incorporates a valve as part of the tritium containment boundary, secondary containment features are incorporated in the CV Lid to protect against gas leakage past the valve as required by 10CFR71.43(e). This secondary containment boundary is designed to provide the same level of containment as the primary containment boundary when subjected to the HAC and NCT criteria.

  6. Predictive Optimal Control of Active and Passive Building Thermal Storage Inventory

    SciTech Connect (OSTI)

    Gregor P. Henze; Moncef Krarti

    2005-09-30

    Cooling of commercial buildings contributes significantly to the peak demand placed on an electrical utility grid. Time-of-use electricity rates encourage shifting of electrical loads to off-peak periods at night and weekends. Buildings can respond to these pricing signals by shifting cooling-related thermal loads either by precooling the building's massive structure or the use of active thermal energy storage systems such as ice storage. While these two thermal batteries have been engaged separately in the past, this project investigated the merits of harnessing both storage media concurrently in the context of predictive optimal control. To pursue the analysis, modeling, and simulation research of Phase 1, two separate simulation environments were developed. Based on the new dynamic building simulation program EnergyPlus, a utility rate module, two thermal energy storage models were added. Also, a sequential optimization approach to the cost minimization problem using direct search, gradient-based, and dynamic programming methods was incorporated. The objective function was the total utility bill including the cost of reheat and a time-of-use electricity rate either with or without demand charges. An alternative simulation environment based on TRNSYS and Matlab was developed to allow for comparison and cross-validation with EnergyPlus. The initial evaluation of the theoretical potential of the combined optimal control assumed perfect weather prediction and match between the building model and the actual building counterpart. The analysis showed that the combined utilization leads to cost savings that is significantly greater than either storage but less than the sum of the individual savings. The findings reveal that the cooling-related on-peak electrical demand of commercial buildings can be considerably reduced. A subsequent analysis of the impact of forecasting uncertainty in the required short-term weather forecasts determined that it takes only very simple short-term prediction models to realize almost all of the theoretical potential of this control strategy. Further work evaluated the impact of modeling accuracy on the model-based closed-loop predictive optimal controller to minimize utility cost. The following guidelines have been derived: For an internal heat gain dominated commercial building, reasonable geometry simplifications are acceptable without a loss of cost savings potential. In fact, zoning simplification may improve optimizer performance and save computation time. The mass of the internal structure did not show a strong effect on the optimization. Building construction characteristics were found to impact building passive thermal storage capacity. It is thus advisable to make sure the construction material is well modeled. Zone temperature setpoint profiles and TES performance are strongly affected by mismatches in internal heat gains, especially when they are underestimated. Since they are a key factor in determining the building cooling load, efforts should be made to keep the internal gain mismatch as small as possible. Efficiencies of the building energy systems affect both zone temperature setpoints and active TES operation because of the coupling of the base chiller for building precooling and the icemaking TES chiller. Relative efficiencies of the base and TES chillers will determine the balance of operation of the two chillers. The impact of mismatch in this category may be significant. Next, a parametric analysis was conducted to assess the effects of building mass, utility rate, building location and season, thermal comfort, central plant capacities, and an economizer on the cost saving performance of optimal control for active and passive building thermal storage inventory. The key findings are: (1) Heavy-mass buildings, strong-incentive time-of-use electrical utility rates, and large on-peak cooling loads will likely lead to attractive savings resulting from optimal combined thermal storage control. (2) By using economizer to take advantage of the cool fresh air during the night, the bu

  7. Magnetic dipole interactions in crystals

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Johnston, David

    2016-01-13

    The influence of magnetic dipole interactions (MDIs) on the magnetic properties of local-moment Heisenberg spin systems is investigated. A general formulation is presented for calculating the eigenvalues λ and eigenvectors μ ˆ of the MDI tensor of the magnetic dipoles in a line (one dimension, 1D), within a circle (2D) or a sphere (3D) of radius r surrounding a given moment μ → i for given magnetic propagation vectors k for collinear and coplanar noncollinear magnetic structures on both Bravais and non-Bravais spin lattices. Results are calculated for collinear ordering on 1D chains, 2D square and simple-hexagonal (triangular) Bravais lattices,more » 2D honeycomb and kagomé non-Bravais lattices, and 3D cubic Bravais lattices. The λ and μ ˆ values are compared with previously reported results. Calculations for collinear ordering on 3D simple tetragonal, body-centered tetragonal, and stacked triangular and honeycomb lattices are presented for c/a ratios from 0.5 to 3 in both graphical and tabular form to facilitate comparison of experimentally determined easy axes of ordering on these Bravais lattices with the predictions for MDIs. Comparisons with the easy axes measured for several illustrative collinear antiferromagnets (AFMs) are given. The calculations are extended to the cycloidal noncollinear 120 ° AFM ordering on the triangular lattice where λ is found to be the same as for collinear AFM ordering with the same k. The angular orientation of the ordered moments in the noncollinear coplanar AFM structure of GdB 4 with a distorted stacked 3D Shastry-Sutherland spin-lattice geometry is calculated and found to be in disagreement with experimental observations, indicating the presence of another source of anisotropy. Similar calculations for the undistorted 2D and stacked 3D Shastry-Sutherland lattices are reported. The thermodynamics of dipolar magnets are calculated using the Weiss molecular field theory for quantum spins, including the magnetic transition temperature T m and the ordered moment, magnetic heat capacity, and anisotropic magnetic susceptibility χ versus temperature T . The anisotropic Weiss temperature θ p in the Curie-Weiss law for T>T m is calculated. A quantitative study of the competition between FM and AFM ordering on cubic Bravais lattices versus the demagnetization factor in the absence of FM domain effects is presented. The contributions of Heisenberg exchange interactions and of the MDIs to T m and to θ p are found to be additive, which simplifies analysis of experimental data. Some properties in the magnetically-ordered state versus T are presented, including the ordered moment and magnetic heat capacity and, for AFMs, the dipolar anisotropy of the free energy and the perpendicular critical field. The anisotropic χ for dipolar AFMs is calculated both above and below the Néel temperature T N and the results are illustrated for a simple tetragonal lattice with c/a>1, c/a=1 (cubic), and c/a<1 , where a change in sign of the χ anisotropy is found at c/a=1 . Finally, following the early work of Keffer [Phys. Rev. 87, 608 (1952)], the dipolar anisotropy of χ above T N =69 K of the prototype collinear Heisenberg-exchange-coupled tetragonal compound MnF 2 is calculated and found to be in excellent agreement with experimental single-crystal literature data above 130 K, where the smoothly increasing deviation of the experimental data from the theory on cooling from 130 K to T N is deduced to arise from dynamic short-range collinear c -axis AFM ordering in this temperature range driven by the exchange interactions.« less

  8. Spectroelectrochemical Sensor for Pertechnetate Applicable to Hanford and Other DOE Sites

    SciTech Connect (OSTI)

    Heineman, William R; Seliskar, Carl J; Bryan, Samuel A

    2012-09-18

    The general aim of our work funded by DOE is the design and implementation of a new sensor technology that offers unprecedented levels of specificity needed for analysis of the complex chemical mixtures found at DOE sites nationwide. The specific goal of this project was the development of a sensor for technetium (Tc) that is applicable to characterizing and monitoring the vadose zone and associated subsurface water at the Hanford Site and other DOE sites. The concept for the spectroelectrochemical sensor is innovative and represents a breakthrough in sensor technology. The sensor combines three modes of selectivity (electrochemistry, spectroscopy, and selective partitioning) into a single sensor to substantially improve selectivity. The sensor consists of a basic spectroelectrochemical configuration that we have developed under our previous DOE grants: a waveguide with an optically transparent electrode (OTE) that is coated with a thin chemically-selective film that preconcnetrates the analyte. The key to adapting this generic sensor to detect TcO4- and Tc complexes lies in the development of chemically-selective films that preconcentrate the analyte and, when necessary, chemically convert it into a complex with electrochemical and spectroscopic properties appropriate for sensing. Significant accomplishments were made in the general areas of synthesis and characterization of polymer films that efficiently preconcentrate the analyte, development and characterization of sensors and associated instrumentation, and synthesis and characterization of relevant Re and Tc complexes. Two new polymer films for the preconcentration step in the sensor were developed: partially sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SSEBS) and phosphine containing polymer films. The latter was a directed polymer film synthesis that combined the proper electrostatic properties to attract TcO4- and also incorporated a suitable ligand for covalently trapping a lower oxidation state Tc complex within the film for spectroelectrochemical detection. Spectroelectrochemical sensors were developed and demonstrated, first using [Re(dmpe)3]+ (dmpe = 1,2-bis(dimethylphosphino)ethane) as a model compound with the non-radioactive Re surrogate for radioactive Tc. A fluorescence based spectroelectrochemical sensor for [Tc(dmpe)3]+/2+was then developed using SSEBS as the preconcentrating film. Portable instrumentation for the fluorescence spectroelectrochemical sensor was fabricated and tested. The effects of components in Hanford subsurface water on sensor performance with a detailed evaluation of the effect of total ionic strength on sensitivity demonstrated the ability to use the spectroelectrochemical sensor on representative water samples. A variety Re and Tc complexes were synthesized and characterized to explore the best ligands to use for detection of Tc. A lower oxidation-state Tc-complex [Tc(dmpe)3]+ (dmpe = 1,2-bis(dimethylphosphino)ethane) was synthesized to use as a model compound for developing Tc sensors. [Tc(dmpe)3]+/2+ exhibited the important properties of solution fluorescence at ambient temperatures and reversible electrochemistry. A range of low oxidation state dioxo Re- and Tc-complexes of formulae [ReO2(py)4]+, [ReO2(CN)4]-, [ReO2(P-P)2]+ and [ReO2(S-S)2]+ (py = pyridine) were synthesized. An exhaustive study of the spectroscopy and electrochemistry of Re(diimine)(CO)3(halide) complexes was performed. These complexes served as models for the Tc(diimine)(CO)3(halide) complexes that were readily formed from Tc(CO)x(halides)6-x complexes which are themselves constituents of tank waste samples from Hanford. Of particular interest were new Tc complexes with the +5 and +6 oxidation states. Tetrabutylammonium salt of tetrachlorooxotechnetate(V), (nBu4N)[TcOCl4] (I) was synthesized and the structure determined. [TcO2(CN)4]3- , [TcO2(en)2]2+ , [TcO2(im)4]+, and [TcO2(py)4]+ (en = ethylenediamine; im = imidazole; py = pyridine) complexes were synthesized and solution and solid state 99Tc NMR spectra were acquired giving