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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Property:GrossProdCapacity | Open Energy Information  

Open Energy Info (EERE)

GrossProdCapacity GrossProdCapacity Jump to: navigation, search Property Name GrossProdCapacity Property Type Quantity Description Sum of the property AvgAnnlGrossOpCpcty for all Energy Generation Facilities with properties: Sector: Geothermal Energy InGeothermalResourceArea: set to the the variable vName of the Geothermal Resource Area Use this property to express potential electric energy generation, such as Nameplate Capacity. The default unit is megawatts (MW). For spatial capacity, use property Volume. Acceptable units (and their conversions) are: 1 MW,MWe,megawatt,Megawatt,MegaWatt,MEGAWATT,megawatts,Megawatt,MegaWatts,MEGAWATT,MEGAWATTS 1000 kW,kWe,KW,kilowatt,KiloWatt,KILOWATT,kilowatts,KiloWatts,KILOWATT,KILOWATTS 1000000 W,We,watt,watts,Watt,Watts,WATT,WATTS 1000000000 mW,milliwatt,milliwatts,MILLIWATT,MILLIWATTS

2

Property:NetProdCapacity | Open Energy Information  

Open Energy Info (EERE)

NetProdCapacity NetProdCapacity Jump to: navigation, search Property Name NetProdCapacity Property Type Quantity Description Sum of the property SummerPeakNetCpcty for all Energy Generation Facilities with properties: Sector: Geothermal Energy InGeothermalResourceArea: set to the the variable vName of the Geothermal Resource Area Use this property to express potential electric energy generation, such as Nameplate Capacity. The default unit is megawatts (MW). For spatial capacity, use property Volume. Acceptable units (and their conversions) are: 1 MW,MWe,megawatt,Megawatt,MegaWatt,MEGAWATT,megawatts,Megawatt,MegaWatts,MEGAWATT,MEGAWATTS 1000 kW,kWe,KW,kilowatt,KiloWatt,KILOWATT,kilowatts,KiloWatts,KILOWATT,KILOWATTS 1000000 W,We,watt,watts,Watt,Watts,WATT,WATTS 1000000000 mW,milliwatt,milliwatts,MILLIWATT,MILLIWATTS

3

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT_CODE","PORT_CITY  

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

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT_CODE","PORT_CITY","PORT_STATE","PORT_PADD","GCTRY_CODE","CNTRY_NAME","QUANTITY","SULFUR","APIGRAVITY","PCOMP_RNAM","PCOMP_SNAM","PCOMP_STAT","STATE_NAME","PCOMP_PADD" RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT_CODE","PORT_CITY","PORT_STATE","PORT_PADD","GCTRY_CODE","CNTRY_NAME","QUANTITY","SULFUR","APIGRAVITY","PCOMP_RNAM","PCOMP_SNAM","PCOMP_STAT","STATE_NAME","PCOMP_PADD" 41547,"AEROPRES CORP ",1,253,"Isobutane/Ngl",3402,"NOYES, MN","MINNESOTA",2,260,"CANADA",2,0,0,,,,," " 41547,"AEROPRES CORP ",2,252,"Normal Butane/Ngl",3402,"NOYES, MN","MINNESOTA",2,260,"CANADA",5,0,0,,,,," "

4

int. j. prod. res., 01 June 2004, vol. 42, no. 11, 21972206 Strategic capacity planning in supply chain design for a new market  

E-Print Network [OSTI]

, capacity planning, transportation network design, identification of distributors in the potential marketint. j. prod. res., 01 June 2004, vol. 42, no. 11, 2197­2206 Strategic capacity planning in supply chain design for a new market opportunity SATYAVEER S. CHAUHANy, RAKESH NAGIz and JEAN-MARIE PROTHy

Nagi, Rakesh

5

INT. J. PROD.RES.,2000, VOL.38, NO. 7, 1677 1687 CNC tool path planning for multi-patch sculptured surfaces  

E-Print Network [OSTI]

INT. J. PROD.RES.,2000, VOL.38, NO. 7, 1677± 1687 CNC tool path planning for multi-patch sculptured surfaces J. H. CHO{, J. W. KIM{ and K. KIM}* A new CNC tool path generation method for a multi-patch is suggested to generate the continuous tool path among di erent patches. In addition, a method of selecting

Kim, Jongwon

6

Pairing in dense lithium  

Science Journals Connector (OSTI)

... of valence electrons. Here we report the results of first-principles calculations, indicating that lithium, the band structure of which is largely free-electron-like at ordinary densities, does ... b.c.c.) becomes unstable to a pairing of the ions. Once paired, lithium possesses an even number of electrons per primitive cell which, although not sufficient, is ...

J. B. Neaton; N. W. Ashcroft

1999-07-08T23:59:59.000Z

7

Cooper Pairs in Insulators?!  

ScienceCinema (OSTI)

Nearly 50 years elapsed between the discovery of superconductivity and the emergence of the microscopic theory describing this zero resistance state. The explanation required a novel phase of matter in which conduction electrons joined in weakly bound pairs and condensed with other pairs into a single quantum state. Surprisingly, this Cooper pair formation has also been invoked to account for recently uncovered high-resistance or insulating phases of matter. To address this possibility, we have used nanotechnology to create an insulating system that we can probe directly for Cooper pairs. I will present the evidence that Cooper pairs exist and dominate the electrical transport in these insulators and I will discuss how these findings provide new insight into superconductor to insulator quantum phase transitions.

James Valles

2010-01-08T23:59:59.000Z

8

Coulomb pair creation II  

Science Journals Connector (OSTI)

In a previous paper [1] we investigated the general theoretical background of electron-positron pair creation in strong external electric fields. In this paper we apply the general formalism to calculate the p...

P. Hrask; L. Fldy; A. Tth

1988-03-01T23:59:59.000Z

9

Pair annotation: adaption of pair programming to corpus annotation  

Science Journals Connector (OSTI)

This paper will introduce a procedure that we call pair annotation after pair programming. We describe initial annotation procedure of the TDB, followed by the inception of the pair annotation idea and how it came to be used in the Turkish Discourse ...

I??n Demir?ahin; Ihsan Yal?nkaya; Deniz Zeyrek

2012-07-01T23:59:59.000Z

10

Multiprocessor switch with selective pairing  

DOE Patents [OSTI]

System, method and computer program product for a multiprocessing system to offer selective pairing of processor cores for increased processing reliability. A selective pairing facility is provided that selectively connects, i.e., pairs, multiple microprocessor or processor cores to provide one highly reliable thread (or thread group). Each paired microprocessor or processor cores that provide one highly reliable thread for high-reliability connect with a system components such as a memory "nest" (or memory hierarchy), an optional system controller, and optional interrupt controller, optional I/O or peripheral devices, etc. The memory nest is attached to a selective pairing facility via a switch or a bus

Gara, Alan; Gschwind, Michael K; Salapura, Valentina

2014-03-11T23:59:59.000Z

11

Accelerated Cellulose Depolymerization Catalyzed by Paired Metal...  

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

Depolymerization Catalyzed by Paired Metal Chlorides in Ionic Liquid Solvent. Accelerated Cellulose Depolymerization Catalyzed by Paired Metal Chlorides in Ionic Liquid...

12

Pair Multiplicities and Pulsar Death  

E-Print Network [OSTI]

Through a simple model of particle acceleration and pair creation above the polar caps of rotation-powered pulsars, we calculate the height of the pair-formation front (PFF) and the dominant photon emission mechanism for the pulsars in the Princeton catalog. We find that for most low- and moderate-field pulsars, the height of the pair formation front and the final Lorentz factor of the primary beam is set by nonresonant inverse Compton scattering (NRICS), in the Klein-Nishina limit. NRICS is capable of creating pairs over a wide range of pulsar parameters without invoking a magnetic field more complicated than a centered dipole, although we still require a reduced radius of curvature for most millisecond pulsars. For short-period pulsars, the dominant process is curvature radiation, while for extremely high-field pulsars, it is resonant inverse Compton scattering (RICS). The dividing point between NRICS dominance and curvature dominance is very temperature-dependent; large numbers of pulsars dominated by NRICS at a stellar temperature of $10^6$ K are dominated by curvature at $10^5$ K. We apply these results to pulsar death-line calculations and to the issue of particle injection into the Crab Nebula.

J. A. Hibschman; J. Arons

2001-02-09T23:59:59.000Z

13

Pair production in inhomogeneous fields  

SciTech Connect (OSTI)

We employ the recently developed worldline numerics, which combines string-inspired field theory methods with Monte Carlo techniques, to develop an algorithm for the computation of pair-production rates in scalar QED for inhomogeneous background fields. We test the algorithm with the classic Sauter potential, for which we compute the local production rate for the first time. Furthermore, we study the production rate for a superposition of a constant E field and a spatially oscillating field for various oscillation frequencies. Our results reveal that the approximation by a local derivative expansion already fails for frequencies small compared to the electron-mass scale, whereas for strongly oscillating fields a derivative expansion for the averaged field represents an acceptable approximation. The worldline picture makes the nonlocal nature of pair production transparent and facilitates a profound understanding of this important quantum phenomenon.

Gies, Holger; Klingmueller, Klaus [Institut fuer theoretische Physik, Universitaet Heidelberg, Philosophenweg 16, D-69120 Heidelberg (Germany)

2005-09-15T23:59:59.000Z

14

Pair production in inhomogeneous fields  

E-Print Network [OSTI]

We employ the recently developed worldline numerics, which combines string-inspired field theory methods with Monte-Carlo techniques, to develop an algorithm for the computation of pair-production rates in scalar QED for inhomogeneous background fields. We test the algorithm with the classic Sauter potential, for which we compute the local production rate for the first time. Furthermore, we study the production rate for a superposition of a constant E field and a spatially oscillating field for various oscillation frequencies. Our results reveal that the approximation by a local derivative expansion fails already for frequencies small compared to the electron mass scale, whereas for strongly oscillating fields a derivative expansion for the averaged field represents an acceptable approximation. The worldline picture makes the nonlocal nature of pair production transparent and facilitates a profound understanding of this important quantum phenomenon.

Holger Gies; Klaus Klingmuller

2005-05-12T23:59:59.000Z

15

Neutron-proton pairing reexamined  

Science Journals Connector (OSTI)

We reexamine neutron-proton pairing as a phenomenon that should be explainable in a microscopic theory of nuclear binding energies. Empirically, there is an increased separation energy when both neutron and proton numbers are even or if they are both odd. The enhancement is present at some level in nearly all nuclei: the separation energy difference has the opposite sign in less than 1% of the cases in which sufficient data exist. We discuss the possible origin of the effect in the context of density functional theory (DFT) and its extensions. Neutron-proton pairing from mean-field theory does not seem promising to explain the effect. Gao and Chen have argued that a significant part of the increased binding in odd-odd deformed nuclei might arise as a recoupling energy, and we find a similar result for spherical nuclei. This suggests that the DFT should be extended by angular momentum projection to reach an accuracy capable of treating this effect.

W. A. Friedman and G. F. Bertsch

2007-11-07T23:59:59.000Z

16

Non-empirical pairing functional  

E-Print Network [OSTI]

The present contribution reports the first systematic finite-nucleus calculations performed using the Energy Density Functional method and a non-empirical pairing functional derived from low-momentum interactions. As a first step, the effects of Coulomb and the three-body force are omitted while only the bare two-nucleon interaction at lowest order is considered. To cope with the finite-range and non-locality of the bare nuclear interaction, the 1S0 channel of Vlowk is mapped onto a convenient operator form. For the first time, neutron-neutron and proton-proton pairing correlations generated in finite nuclei by the direct term of the two-nucleon interaction are characterized in a systematic manner. Eventually, such predictions are compared to those obtained from empirical local functionals derived from density-dependent zero range interactions. The characteristics of the latter are analyzed in view of that comparison and a specific modification of their isovector density dependence is suggested to accommodate Coulomb effects and the isovector trend of neutron gaps at the same time.

T. Duguet; T. Lesinski

2007-12-07T23:59:59.000Z

17

Microsoft Word - 08071744_DocProd.doc  

Office of Legacy Management (LM)

Shirley Basin South, Wyoming Shirley Basin South, Wyoming Disposal Site January 2009 LMS/SBS/S00808 This page intentionally left blank This page intentionally left blank U.S. Department of Energy DVP-August 2008, Shirley Basin South, Wyoming, Disposal Site January 2009 RIN 08071744 Page i Contents Sampling Event Summary ...............................................................................................................1 Shirley Basin South, Wyoming, Disposal Site Sample Location Map ............................................2 Data Assessment Summary..............................................................................................................3 Water Sampling Field Activities Verification Checklist .............................................................5

18

Microsoft Word - 08031475_DocProd.doc  

Office of Legacy Management (LM)

SAL/S04639 SAL/S04639 U.S. Department of Energy Office of Legacy Management Work Performed by the S.M. Stoller Corporation Under DOE Contract No. for the U.S. Department of Energy Office of Legacy Management. Approved for public release; distribution is unlimited. DE AM01 07LM00060 - - April 2008 Groundwater and Surface Water Sampling at the Salmon, Mississippi, Site August 2008 U.S. Department of Energy DVP-April 2008, Salmon, Mississippi, Site August 2008 RIN 08031475 Page iii Contents Sampling Event Summary ...............................................................................................................1 Water Sampling Locations at the Salmon, Mississippi, Site ...........................................................2 Data Assessment Summary ..............................................................................................................3

19

Microsoft Word - 07121310 DocProd.doc  

Office of Legacy Management (LM)

613 613 2008 - - U.S. Department of Energy Office of Legacy Management Work Performed by the S.M. Stoller Corporation Under DOE Contract No. for the U.S. Department of Energy Office of Legacy Management. Approved for public release; distribution is unlimited. DE AM01 07LM00060 - - December 2007 Groundwater Sampling at the Monument Valley, Arizona, Processing Site March 2008 This page intentionally left blank U.S. Department of Energy DVP-December 2007, Monument Valley, Arizona, Processing Site March 2008 RIN 07121310 Page iii Contents Sampling Event Summary ...............................................................................................................1 Monument Valley, Arizona, Processing Site Sample Locations .....................................................2

20

Microsoft Word - 08021395 DocProd.doc  

Office of Legacy Management (LM)

SHP/S04483 SHP/S04483 U.S. Department of Energy Office of Legacy Management Work Performed by the S.M. Stoller Corporation Under DOE Contract No. for the U.S. Department of Energy Office of Legacy Management. Approved for public release; distribution is unlimited. DE AM01 07LM00060 - - March 2008 Groundwater and Surface Water Sampling at the Shiprock, New Mexico, Disposal Site July 2008 This page intentionally left blank U.S. Department of Energy DVP-March 2008, Shiprock, New Mexico, Disposal Site July 2008 RIN 08021395 Page iii Contents Sampling Event Summary ...............................................................................................................1 Shiprock, New Mexico, Disposal Site Sample Monitoring Locations ............................................5

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Microsoft Word - 08101898_DocProd.doc  

Office of Legacy Management (LM)

and Surface Water and Surface Water Sampling at the Riverton, Wyoming, Processing Site February 2009 LMS/RVT/S01108 This page intentionally left blank U.S. Department of Energy DVP-November 2008, Riverton, Wyoming, Processing Site February 2009 RIN 08101898 Page i Contents Sampling Event Summary ...............................................................................................................1 Riverton, Wyoming, Processing Site, Sample Locations ................................................................3 Data Assessment Summary..............................................................................................................5 Water Sampling Field Activities Verification Checklist .............................................................7

22

Microsoft Word - 08071744_DocProd.doc  

Office of Legacy Management (LM)

was conducted in accordance with Sampling and Analysis Plan for the U. S. Department of Energy Oflice of Legacy Management Sites. The water level was measured at each sampled...

23

Magnetism and pairing in Hubbard bilayers  

Science Journals Connector (OSTI)

We study the Hubbard model on a bilayer with repulsive on-site interactions U in which fermions undergo both intraplane (t) and interplane (tz) hopping. This situation is what one would expect in high-temperature superconductors such as YBa2Cu3O7-y, with two adjacent CuO2 planes. Magnetic and pairing properties of the system are investigated through quantum Monte Carlo simulations for both half- and quarter-filled bands. We find that in all cases interplanar pairing with dx2-z2 symmetry is dominant over planar pairing with dx2-y2 symmetry, and that for a large enough tz pair formation is possible through antiferromagnetic correlations. However, another mechanism is needed to make these pairs condense into a superconducting state at lower temperatures. We identify the temperature for pair formation with the spin-gap crossover temperature.

Raimundo R. dos Santos

1995-06-01T23:59:59.000Z

24

Pairing Effects in Nuclear Fusion Reaction  

E-Print Network [OSTI]

We simulate a heavy-ion collision using the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory (Cb-TDHFB) treating pairing correlation in the three-dimensional coordinate space. We apply the Cb-TDHFB to 22O+22O collision with a contact-type pairing energy functional, and compare results of Cb-TDHFB and TDHF to investigate the effects of pairing correlations in nuclear fusion. Our results seem to indicate that pairing effects do not increase the fusion cross section in this system.

Ebata, Shuichiro

2013-01-01T23:59:59.000Z

25

Using audio in secure device pairing  

Science Journals Connector (OSTI)

Secure pairing of electronic devices is an important issue that must be addressed in many contexts. In the absence of prior security context, the need to involve the user in the pairing process is a prominent challenge. In this paper, we investigate the use of the audio channel for human-assisted device pairing. First we assume a common (insecure) wireless channel between devices. We then obviate the assumption of a pre-existing common channel with a single-channel device pairing approach only based on audio. Both approaches are applicable to a wide range of devices and place light burden on the user.

Michael T. Goodrich; Michael Sirivianos; John Solis; Claudio Soriente; Gene Tsudik; Ersin Uzun

2009-01-01T23:59:59.000Z

26

Order-Sorted Dependency Pairs Salvador Lucas  

E-Print Network [OSTI]

Order-Sorted Dependency Pairs Salvador Lucas DSIC, Universidad Polit´ecnica de Valencia, Spain modeled as many-sorted or, more Salvador Lucas was partially supported by the EU (FEDER) and the Spanish

Lucas, Salvador

27

Schwinger pair creation in multilayer graphene  

E-Print Network [OSTI]

The low energy effective field model for the multilayer graphene (at ABC stacking) in external Electric field is considered. The Schwinger pair creation rate and the vacuum persistence probability are calculated using the semi - classical approach.

M. A. Zubkov

2012-03-31T23:59:59.000Z

28

90 Seconds of Discovery: Frustrated Lewis Pairs  

SciTech Connect (OSTI)

Hydrogen activating catalysts play an important role in producing valuable chemicals, such as biofuels and ammonia. As a part of efforts to develop the next generation of these catalysts, PNNL researchers have found potential in Frustrated Lewis Pairs.

Kathmann, Shawn; Schenter, Greg; Autrey, Tom

2014-02-14T23:59:59.000Z

29

Continuous-wave, pair-pumped laser  

SciTech Connect (OSTI)

We report room-temperature operation of what we believe is the first continuous-wave laser that relies exclusively on cooperative upconversion by coupled ion pairs to achieve population inversion.

Xie, P.; Rand, S.C. (Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, MI (USA))

1990-08-01T23:59:59.000Z

30

Two pairing parameters in superconducting grains  

Science Journals Connector (OSTI)

Unlike bulk superconductivity, where one energy scale, the energy gap, characterizes pairing correlations, we show that in small superconducting grains there exist two different such quantities. The first characterizes collective properties of the grain, such as the condensation energy, and the second single-particle properties. To describe these two energy scales, we define two corresponding pairing parameters, and show that although both reduce to the bulk gap for large grains, this occurs at different size scales.

M. Schechter; J. von Delft; Y. Imry; Y. Levinson

2003-02-27T23:59:59.000Z

31

Nuclear elements in Banach Jordan pairs Ottmar Loos  

E-Print Network [OSTI]

Nuclear elements in Banach Jordan pairs Ottmar Loos Abstract We introduce nuclear elements in Banach Jordan pairs, generalizing the nuclear elements Jordan pairs and show that the trace form Trintroduced in [3] may be extended to the nuclear

32

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

",2,130,"Motor Gas, Conventional, Other",4909,"SAN JUAN, PR","PUERTO RICO",6,428,"GERMANY",77,0,0,,,,,," " "applicationvnd.ms-excel","ATLANTIC TRADING MARKETING...

33

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

INC ",90,840,"Unfinished Oils, Heavy Gas Oils",2812,"RICHMOND, CA","CALIFORNIA",5,428,"GERMANY",247,0,0,"CHEVRON USA INC ",120,"RICHMOND","CA","CALIFORNIA",5 "application...

34

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

COMPONENTS, GTAB, FOR CONVENTIONAL",1004,"PERTH AMBOY, NJ","NEW JERSEY",1,428,"GERMANY",29,0,0,"KINDER MORGAN ","CARTERET TERM","NJ","NEW JERSEY",1 38383,"BP PRODTS N AMER...

35

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

",1,130,"Motor Gas, Conventional, Other",4909,"SAN JUAN, PR","PUERTO RICO",6,428,"GERMANY",1,0,0,,,,,," " "applicationvnd.ms-excel","ATLANTIC TRADING MARKETING...

36

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

",10,130,"Motor Gas, Conventional, Other",4909,"SAN JUAN, PR","PUERTO RICO",6,428,"GERMANY",11,0,0,,,,,," " 41305,"ATLANTIC TRADING MARKETING ",11,130,"Motor Gas, Conventional,...

37

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

USA LP ",2,854,"Lubricants, Total",5301,"HOUSTON, TX","TEXAS",3,428,"GERMANY",3,0,0,,,,,," " "applicationvnd.ms-excel","INFINEUM USA LP ",3,854,"Lubricants,...

38

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

USA LP ",2,854,"Lubricants, Total",5301,"HOUSTON, TX","TEXAS",3,428,"GERMANY",1,0,0,,,,,," " "applicationvnd.ms-excel","INFINEUM USA LP ",3,854,"Lubricants,...

39

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

",5,130,"Motor Gas, Conventional, Other",4909,"SAN JUAN, PR","PUERTO RICO",6,428,"GERMANY",22,0,0,,,,,," " "applicationvnd.ms-excel","ATLANTIC TRADING MARKETING...

40

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

GAS BLENDING COMPONENTS, ALL OTHER",1003,"NEWARK, NJ","NEW JERSEY",1,428,"GERMANY",215,0,0,"KINDER MORGAN ","CARTERET","NJ","NEW JERSEY",1 39478,"BP PRODUCTS NORTH...

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

BP LUBRICANTS ",8,854,"Lubricants, Total",1003,"NEWARK, NJ","NEW JERSEY",1,428,"GERMANY",1,0,0,,,,,," " "applicationvnd.ms-excel","CASTROL BP LUBRICANTS...

42

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

PETRO CORP",5,508,"RESIDUAL FUEL, < 0.31% SULFUR",5301,"HOUSTON, TX","TEXAS",3,428,"GERMANY",440,0.12,0,,,,, 35826,"D & C TRANSP INC",1,461,"DISTILLATE, < 0.05% SUL...

43

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

",15,130,"Motor Gas, Conventional, Other",4909,"SAN JUAN, PR","PUERTO RICO",6,428,"GERMANY",2,0,0,,,,,," " "applicationvnd.ms-excel","ATLANTIC TRADING MARKETING...

44

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

BP LUBRICANTS ",4,854,"Lubricants, Total",5301,"HOUSTON, TX","TEXAS",3,428,"GERMANY",1,0,0,,,,,," " "applicationvnd.ms-excel","CASTROL BP LUBRICANTS...

45

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

34000,"EXXON CO USA",38,850,"UNFINISHED OILS, RESIDUUM",5301,"HOUSTON, TX","TEXAS",3,,"GERMANY, FD (W)",319,0,0,"EXXON CO USA","BAYTOWN","TX","TEXAS",3 34000,"EXXON CO...

46

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

REFG CO",2,850,"UNFINISHED OILS, RESIDUUM",1003,"NEWARK, NJ","NEW JERSEY",1,,"GERMANY, FD (W)",336,0,0,"BAYWAY REFG CO","BAYWAY","NJ","NEW JERSEY",1 34365,"BAYWAY REFG...

47

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

INC ",91,134,"MOTOR GAS BLENDING COMPONENTS",1001,"NEW YORK, NY","NEW YORK",1,429,"GERMANY, DR (E)",46,0,0,"BP PRODTS N AMER INC ","CARTERET","NJ","NEW JERSEY",1 37652,"BP...

48

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

BP LUBRICANTS ",1,854,"Lubricants, Total",5301,"HOUSTON, TX","TEXAS",3,428,"GERMANY",1,0,0,,,,,," " "applicationvnd.ms-excel","CENOVUS MARKETING USA INC ",1,025,"Crude...

49

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

CO ",19,840,"UNFINISHED OILS, HEAVY GAS OILS",1003,"NEWARK, NJ","NEW JERSEY",1,428,"GERMANY",108,0,0,"CONOCOPHILLIPS ","BAYWAY","NJ","NEW JERSEY",1 39113,"CONOCOPHILLIPS CO...

50

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

",16,130,"MOTOR GAS, CONVENTIONAL, OTHER",1004,"PERTH AMBOY, NJ","NEW JERSEY",1,428,"GERMANY",72,0,0,,,,, 38748,"BP PRODUCTS N AMERICA INC ",1,121,"MOTOR GAS BLENDING COMPONENTS,...

51

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

",13,130,"Motor Gas, Conventional, Other",4909,"SAN JUAN, PR","PUERTO RICO",6,428,"GERMANY",17,0,0,,,,,," " "applicationvnd.ms-excel","ATLANTIC TRADING MARKETING...

52

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

",3,025,"Crude Oil",3402,"NOYES, MN","MINNESOTA",2,260,"CANADA",62,3.86,21.6,"MERCURIA ENERGY TRADING ",4966,"GREEN PORT","TX","TEXAS",3 "applicationvnd.ms-excel","MERCURIA...

53

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

Oil",3604,"INTER. FALLS,MN","MINNESOTA",2,260,"CANADA",117,4.06,20.9,"MERCURIA ENERGY TRADING ",4966,"GREEN PORT","TX","TEXAS",3 "applicationvnd.ms-excel","MICHIGAN...

54

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

Oil",3604,"INTER. FALLS,MN","MINNESOTA",2,260,"CANADA",164,4.06,20.9,"MERCURIA ENERGY TRADING ",4966,"GREEN PORT","TX","TEXAS",3 "applicationvnd.ms-excel","MICHIGAN...

55

RPT_PERIOD","R_S_NAME","LINE_NUM","PROD_CODE","PROD_NAME","PORT...  

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

201,"SPRAGUE ENERGY CORP",1,461,"DIST, < 0.05% SUL (DOM.)",0131,"PORTSMOUTH, NH","NH",100,260,"CANADA",114,0,0 0201,"SPRAGUE ENERGY CORP",2,461,"DIST, < 0.05% SUL...

56

Ab Initio Atomic Simulations of Antisite Pair Recovery in Cubic...  

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

Atomic Simulations of Antisite Pair Recovery in Cubic Silicon Carbide. Ab Initio Atomic Simulations of Antisite Pair Recovery in Cubic Silicon Carbide. Abstract: The thermal...

57

Thermodynamics of pairing in mesoscopic systems  

E-Print Network [OSTI]

Using numerical and analytical methods implemented for different models we conduct a systematic study of thermodynamic properties of pairing correlation in mesoscopic nuclear systems. Various quantities are calculated and analyzed using the exact solution of pairing. An in-depth comparison of canonical, grand canonical, and microcanonical ensemble is conducted. The nature of the pairing phase transition in a small system is of a particular interest. We discuss the onset of discontinuity in the thermodynamic variables, fluctuations, and evolution of zeros of the canonical and grand canonical partition functions in the complex plane. The behavior of the Invariant Correlational Entropy is also studied in the transitional region of interest. The change in the character of the phase transition due to the presence of magnetic field is discussed along with studies of superconducting thermodynamics.

Tony Sumaryada; Alexander Volya

2007-06-12T23:59:59.000Z

58

Holographic EPR Pairs, Wormholes and Radiation  

E-Print Network [OSTI]

As evidence for the ER=EPR conjecture, it has recently been observed that the string that is holographically dual to an entangled quark-antiquark pair separating with (asymptotically) uniform acceleration has a wormhole on its worldsheet. We point out that a two-sided horizon and a wormhole actually appear for much more generic quark-antiquark trajectories, which is consistent with the fact that the members of an EPR pair need not be permanently out of causal contact. The feature that determines whether the causal structure of the string worldsheet is trivial or not turns out to be the emission of gluonic radiation by the dual quark and antiquark. In the strongly-coupled gauge theory, it is only when radiation is emitted that one obtains an unambiguous separation of the pair into entangled subsystems, and this is what is reflected on the gravity side by the existence of the worldsheet horizon.

Chernicoff, Mariano; Pedraza, Juan F

2013-01-01T23:59:59.000Z

59

Probing light stop pairs at the LHC  

Science Journals Connector (OSTI)

In this work, we study the light stop pair signals at the LHC. We explore the supersymmetry parameter space with nonuniversal gaugino and third-generation masses at the grand unified theory scale. Recent LHC supersymmetry search results based on 35??pb-1 and 1??fb-1 of data are implemented to put the limits on stop pair events. The dark matter relic density and direct detection constraints are also taken into account. Detailed simulations on the signals and background for some benchmark points are performed, and it is found that the stop pair signals usually escape the LHC search if the present cut conditions are used. We also explore the potential and sensitivity of ILC to probe such scenarios. It is found that the ILC can detect them with an integrated luminosity of a few tens of fb-1.

Xiao-Jun Bi; Qi-Shu Yan; Peng-Fei Yin

2012-02-07T23:59:59.000Z

60

Project-Role Pair user_tokens  

E-Print Network [OSTI]

OSAC Users (U) Domains (D) Roles (R) User Assignment (UA) Permission Assignment (PA) Project Ownership (PO) Project-Role Pair (PRP) Projects (P) Tokens (T) User Ownership (UO) Services (S) user_tokens token_project Groups (G) Group Ownership (GO) User Group (UG) Group Assignment (GA) token_roles PERMS

Sandhu, Ravi

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Production of Meson Pairs Involving $L \  

E-Print Network [OSTI]

We present a formalism for studying the exclusive production or decay of mesons with any value of the internal orbital angular momentum L. As an application, we discuss the production of meson pairs (involving tensor and pseudotensor mesons) in photon-photon collisions.

Houra-Yaou, L; Parisi, J; Murgia, F; Hansson, J

1997-01-01T23:59:59.000Z

62

Significance tests for paired-comparison experiments  

Science Journals Connector (OSTI)

......FLECKENSTEIN, M., FREUND, R. A. & JACKSON, J. B. (1958). A paired comparison test of type- writer carbon papers. Tappi, 41, 128-30. HARTLEY, H. O. (1950). The use of range in analysis of variance. Biometrika, 37, 271-80. HARVARD......

T. H. STARKS; H. A. DAVID

1961-06-01T23:59:59.000Z

63

Neutron drops and neutron pairing energy  

Science Journals Connector (OSTI)

The ground state energy of a six-neutron drop is computed with variational and Greens function Monte Carlo methods using the Argonne v18 two-nucleon and the Urbana three-nucleon potentials. Combined with earlier results from investigations of the drops 8n and 7n, this energy gives a 1p-shell pairing energy of (1.80.4) MeV. The generalized Skyrme effective interaction discussed in the earlier work is applied to these nuclei by calculating, for the open-shell drops 7n and 6n, the matrix elements of the Skyrme t matrix directly for the states involved. The pairing energy obtained is 1.50 MeV, in reasonable agreement with the accurate calculations.

A. Smerzi; D. G. Ravenhall; V. R. Pandharipande

1997-11-01T23:59:59.000Z

64

A search for resonant Z pair production  

SciTech Connect (OSTI)

I describe a search for anomalous production of Z pairs through a new massive resonance X in 2.5-2.9 fb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV using the CDFII Detector at the Fermilab Tevatron. I reconstruct Z pairs through their decays to electrons, muons, and quarks. To achieve perhaps the most efficient lepton reconstruction ever used at CDF, I apply a thorough understanding of the detector and new reconstruction software heavily revised for this purpose. In particular, I have designed and employ new general-purpose algorithms for tracking at large {eta} in order to increase muon acceptance. Upon analyzing the unblinded signal samples, I observe no X {yields} ZZ candidates and set upper limits on the production cross section using a Kaluza-Klein graviton-like acceptance.

Boveia, Antonio; /UC, Santa Barbara

2008-12-01T23:59:59.000Z

65

Photoinduced electron transfer in contact ion pairs  

SciTech Connect (OSTI)

Contact ion pair (CIP) formation is especially relevant to the reactivity of organic and organometallic nucleophiles and electrophiles in solution. The authors felt that the intermolecular charge-transfer (CT) absorptions which commonly accompany the interaction of uncharged nucleophiles (donors) with electrophiles (acceptors) could also provide the experimental means to assess CIP behavior. Accordingly they examined the CT excitations from CIPs of carbonylmetallate anions in this study, since they are known to be effective nucleophiles with relatively low ionization potentials.

Bockman, T.M.; Kochi, J.K.

1988-02-17T23:59:59.000Z

66

Infrared Properties of Close Pairs of Galaxies  

E-Print Network [OSTI]

We discuss spectroscopy and infrared photometry for a complete sample of ~ 800 galaxies in close pairs objectively selected from the CfA2 redshift survey. We use 2MASS to compare near infrared color-color diagrams for our sample with the Nearby Field Galaxy Sample and with a set of IRAS flux-limited pairs from Surace et al. We construct a basic statistical model to explore the physical sources of the substantial differences among these samples. The model explains the spread of near infrared colors and is consistent with a picture where central star formation is triggered by the galaxy-galaxy interaction before a merger occurs. For 160 galaxies we report new, deep JHK photometry within our spectroscopic aperture and we use the combined spectroscopic and photometric data to explore the physical conditions in the central bursts. We find a set of objects with H-K >= 0.45 and with a large F(FIR)/F(H). We interpret the very red H-K colors as evidence for 600-1000 K dust within compact star-forming regions, perhaps similar to super-star clusters identified in individual well-studied interacting galaxies. The galaxies in our sample are candidate ``hidden'' bursts or, possibly, ``hidden'' AGN. Over the entire pair sample, both spectroscopic and photometric data show that the specific star formation rate decreases with the projected separation of the pair. The data suggest that the near infrared color-color diagram is also a function of the projected separation; all of the objects with central near infrared colors indicative of bursts of star formation lie at small projected separation.

Margaret J. Geller; Scott J. Kenyon; Elizabeth J. Barton; Thomas H. Jarrett; Lisa J. Kewley

2006-08-02T23:59:59.000Z

67

Locating and paired-dominating sets in graphs  

Science Journals Connector (OSTI)

In this paper, we continue the study of paired-domination in graphs introduced by Haynes and Slater [T.W. Haynes, P.J. Slater, Paired-domination in graphs, Networks 32 (1998), 199206]. A paired-dominating set of a graph G with no isolated vertex is a dominating set S of vertices whose induced subgraph has a perfect matching. We consider paired-dominating sets which are also locating sets, that is distinct vertices of G are dominated by distinct subsets of the paired-dominating set. We consider three variations of sets which are paired-dominating and locating sets and investigate their properties.

John McCoy; Michael A. Henning

2009-01-01T23:59:59.000Z

68

Jordan Pairs and Hopf Algebras John R. Faulkner  

E-Print Network [OSTI]

Jordan Pairs and Hopf Algebras John R. Faulkner A (quadratic) Jordan pair is constructed from a Z-graded Hopf algebra having divided power sequences over. The notion of a divided power representation of a Jordan pair is introduced and the universal

69

POLYNOMIAL IDENTITIES AND NON-IDENTITIES OF SPLIT JORDAN PAIRS  

E-Print Network [OSTI]

POLYNOMIAL IDENTITIES AND NON-IDENTITIES OF SPLIT JORDAN PAIRS Erhard Neher Abstract. We show that split Jordan pairs over rings without 2-torsion can be distinguished by polynomial identities with integer coefficients. In particular, this holds for simple finite-dimensional Jordan pairs over

Neher, Erhard

70

LM194LM394SupermatchPair December 1994  

E-Print Network [OSTI]

TL H 9241 LM194LM394SupermatchPair December 1994 LM194 LM394 Supermatch Pair General Description The LM194 and LM394 are junction isolated ultra well- matched monolithic NPN transistor pairs emitter to ensure com- plete isolation between devices The LM194 and LM394 will provide a considerable

Lanterman, Aaron

71

Weierstrass Pairs and Minimum Distance of Goppa Codes  

Science Journals Connector (OSTI)

We prove that elements of the Weierstrass gap set of a pair of points may be used to define a geometric Goppa code which has minimum distance greater than the usual lower bound. We determine the Weierstrass gap set of a pair of any two Weierstrass ... Keywords: Hermitian code, Weierstrass pair, Weierstrass point

Gretchen L. Matthews

2001-03-01T23:59:59.000Z

72

Nuclear Pairing from Two-body Microscopic Forces: Analysis of the Cooper Pair Wavefunctions  

E-Print Network [OSTI]

In a recent paper we studied the behavior of the pairing gaps $\\Delta_F$ as a function of the Fermi momentum $k_F$ for neutron and nuclear matter in all relevant angular momentum channels where superfluidity is believed to naturally emerge. The calculations employed realistic chiral nucleon-nucleon potentials with the inclusion of three-body forces and self-energy effects. In this contribution, after a detailed description of the numerical method we employed in the solution of the BCS equations, we will show a preliminary analysis of the Cooper pair wavefunctions.

Finelli, P; Holt, J W

2014-01-01T23:59:59.000Z

73

Proton-neutron pairing vibrations in N=Z nuclei: Precursory soft mode of isoscalar pairing condensation  

E-Print Network [OSTI]

L=0 proton-neutron ($pn$) pair-addition and pair-removal strengths in $^{40}$Ca and $^{56}$Ni are investigated by means of the $pn$ particle-particle random-phase approximation employing a Skyrme energy-density functional. It is found that the collectivity of the lowest $J^\\pi = 1^+$ state in the adjacent odd-odd nuclei becomes stronger as the strength of the isoscalar (T=0) pairing interaction increases. The results suggest the emergence of the T=0 $pn$-pairing vibrational mode as a possible critical phenomenon toward the T=0 pairing condensation.

Kenichi Yoshida

2014-09-17T23:59:59.000Z

74

Proton-neutron pairing vibrations in N=Z nuclei: Precursory soft mode of isoscalar pairing condensation  

E-Print Network [OSTI]

L=0 proton-neutron ($pn$) pair-addition and pair-removal strengths in $^{40}$Ca and $^{56}$Ni are investigated by means of the $pn$ particle-particle random-phase approximation employing a Skyrme energy-density functional. It is found that the collectivity of the lowest $J^\\pi = 1^+$ state in the adjacent odd-odd nuclei becomes stronger as the strength of the isoscalar (T=0) pairing interaction increases. The results suggest the emergence of the T=0 $pn$-pairing vibrational mode as a possible critical phenomenon toward the T=0 pairing condensation.

Yoshida, Kenichi

2014-01-01T23:59:59.000Z

75

One Monopole?Antimonopole Pair Solutions  

Science Journals Connector (OSTI)

We present new classical generalized one monopole?antimonopole pair solutions of the SU(2) Yang?Mills?Higgs theory with the Higgs field in the adjoint representation. We show that in general the one monopole?antimonopole solution need not be solved by imposing m ??winding number to be integer greater than one. We also show that this solution can be solved when m?=?1 by transforming the large distance asymptotic solutions to general solutions that depend on a parameter p. Secondly we show that these large distance asymptotic solutions can be further generalized to the Jacobi elliptic functions. We focus our numerical calculation on the Jacobi elliptic functions solution when the n ??winding number is one and show that this generalized Jacobi elliptic 1?MAP solution possesses lower energy. All these solutions are numerical finite energy non?BPS solutions of the Yang?Mills?Higgs field theory.

Rosy Teh; Khai?Ming Wong

2009-01-01T23:59:59.000Z

76

Pair-Production Supernovae: Theory and Observation  

E-Print Network [OSTI]

I review the physical properties of pair-production supernovae (PPSNe) as well as the prospects for them to be constrained observationally. In very massive (140-260 solar mass) stars, much of the pressure support comes from the radiation field, meaning that they are loosely bound, with an adiabatic coefficient that is close to the minimum stable value. Near the end of C/O burning, the central temperature increases to the point that photons begin to be converted into electron-positron pairs, softening gamma below this critical value. The result is a runaway collapse, followed by explosive burning that completely obliterates the star. While these explosions can be up to 100 times more energetic that core collapse and Type Ia supernovae, their peak luminosities are only slightly greater. However, due both to copious Ni-56 production and hydrogen recombination, they are brighter much longer, and remain observable for ~ 1 year. Since metal enrichment is a local process, PPSNe should occur in pockets of metal-free gas over a broad range of redshifts, greatly enhancing their detectability, and distributing their nucleosyntehtic products about the Milky Way. This means that measurements of the abundances of metal-free stars should be thought of as directly constraining these objects. It also means that ongoing supernova searches, already provide weak constraints for PPSN models. A survey with the NIRCam instrument on JWST, on the other hand, would be able to extend these limits to z ~ 10. Observing a 0.3 deg^2 patch of sky for one week per year for three consecutive years, such a program would either detect or rule out the existence of these remarkable objects.

Evan Scannapieco

2006-09-07T23:59:59.000Z

77

The holographic dual of an EPR pair has a wormhole  

E-Print Network [OSTI]

We construct the holographic dual of two colored quasiparticles in maximally supersymmetric Yang-Mills theory entangled in a color singlet EPR pair. In the holographic dual the entanglement is encoded in a geometry of a non-traversable wormhole on the worldsheet of the flux tube connecting the pair. This gives a simple example supporting the recent claim by Maldacena and Susskind that EPR pairs and non-traversable wormholes are equivalent descriptions of the same physics.

Jensen, Kristan

2013-01-01T23:59:59.000Z

78

ION PAIRING AND pH: A REPLY  

Science Journals Connector (OSTI)

960. COMMENT. ( 1970) found experimentally that NaS04- ion pairs dissociate with increased pressure under conditions appropriate to the deep ocean.

1999-12-26T23:59:59.000Z

79

Pair interaction of metal atoms on a metal surface  

Science Journals Connector (OSTI)

Pair interactions of tungsten and iridium adatoms on the W {110} plane are studied by measuring two-dimensional pair distributions with two adatoms on a plane. Each distribution contains from 600 to 950 field-ion-microscopy observations. Pair energies over a distance range of ?2.5 to ?50 are derived by comparing the experimentally measured pair distributions with the calculated pair distributions for two noninteracting atoms. It is found that Ir-Ir pair interaction exhibits an attractive region at ?5 and a repulsive region around 8 . If an oscillatory structure exists, its amplitudes decay already to less than ?10 meV beyond 10 . The plane edge seems to repel Ir adatoms with a weak long-range force. The W-Ir interaction at a short range is weaker than the Ir-Ir interaction. However, the interaction extends to larger distances. From ?950 observations at 330 K with two adatoms, we derive a pair energy which exhibits two attractive and two repulsive regions, thus strongly suggesting an oscillatory structure. The pair energies derived beyond 25 are erratic for both Ir-Ir and W-Ir interactions, most probably because of the limited amount of data available. However, this work represents the first time statistically reliable amounts of data have been obtained for two-dimensional pair distributions with only two adatoms on a plane. The nonmonotonic behaviors of adatom-adatom interaction on the smooth W {110} plane are clearly established.

R. Casanova and T. T. Tsong

1980-12-15T23:59:59.000Z

80

Nucleic Acid Standards | Base Pair Geometry  

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

A Standard Reference Frame for the Description A Standard Reference Frame for the Description of Nucleic Acid Base-pair Geometry Table 1. Cartesian coordinates of non-hydrogen atoms in the standard reference frames of the five common nitrogenous bases Atom Base x(Å) y(Å) z(Å) Adenine ATOM 1 C1' A A 1 -2.479 5.346 0.000 ATOM 2 N9 A A 1 -1.291 4.498 0.000 ATOM 3 C8 A A 1 0.024 4.897 0.000 ATOM 4 N7 A A 1 0.877 3.902 0.000 ATOM 5 C5 A A 1 0.071 2.771 0.000 ATOM 6 C6 A A 1 0.369 1.398 0.000 ATOM 7 N6 A A 1 1.611 0.909 0.000 ATOM 8 N1 A A 1 -0.668 0.532 0.000 ATOM 9 C2 A A 1 -1.912 1.023 0.000 ATOM 10 N3 A A 1 -2.320 2.290 0.000

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Unifying Projected Entangled Pair States contractions  

E-Print Network [OSTI]

The approximate contraction of a Projected Entangled Pair States (PEPS) tensor network is a fundamental ingredient of any PEPS algorithm, required for the optimization of the tensors in ground state search or time evolution, as well as for the evaluation of expectation values. An exact contraction is in general impossible, and the choice of the approximating procedure determines the efficiency and accuracy of the algorithm. We analyze different previous proposals for this approximation, and show that they can be understood via the form of their environment, i.e. the operator that results from contracting part of the network. This provides physical insight into the limitation of various approaches, and allows us to introduce a new strategy, based on the idea of clusters, that unifies previous methods. The resulting contraction algorithm interpolates naturally between the cheapest and most imprecise and the most costly and most precise method. We benchmark the different algorithms with finite PEPS, and show how the cluster strategy can be used for both the tensor optimization and the calculation of expectation values. Additionally, we discuss its applicability to the parallelization of PEPS and to infinite systems (iPEPS).

Michael Lubasch; J. Ignacio Cirac; Mari-Carmen Bauls

2014-04-07T23:59:59.000Z

82

Jacobi Elliptic Monopole-Antimonopole Pair Solutions  

E-Print Network [OSTI]

We present new classical generalized Jacobi elliptic one monopole - antimonopole pair (MAP) solutions of the SU(2) Yang-Mills-Higgs theory with the Higgs field in the adjoint representation. These generalized 1-MAP solutions are solved with $\\theta$-winding number $m$=1 and $\\phi$-winding number $n$=1, 2, 3, ... 6. Similar to the generalized Jacobi elliptic one monopole solutions, these generalized 1-MAP solutions are solved by generalizing the large distance behaviour of the solutions to the Jacobi elliptic functions and solving the second order equations of motion numerically when the Higgs potential is vanishing ($\\lambda$=0) and non vanishing ($\\lambda$=1). These generalized 1-MAP solutions possess total energies that are comparable to the total energy of the standard 1-MAP solution with winding number $m$=1. However these total energies are significantly lower than the total energy of the standard 1-MAP solution with winding number $m$=2. All these new generalized solutions are regular numerical finite energy non-BPS solutions of the Yang-Mills-Higgs field theory.

Rosy Teh; Pei-Yen Tan; Khai-Ming Wong

2012-03-02T23:59:59.000Z

83

Properties of an EPR pair If you measure the two halves of an EPR pair using the same basis,  

E-Print Network [OSTI]

Properties of an EPR pair If you measure the two halves of an EPR pair using the same basis, you¨odinger (1935) Motivated by EPR, he introduced the term entanglement (verschr¨ankung). Bell (1964) Bell.g., CHSH) of it? · Can we make EPR pairs from many copies of AB (i.e., n AB)? · Can we use a classical

Shor, Peter W.

84

Muon Pair Creation by a High Energy Electron  

Science Journals Connector (OSTI)

......research-article Articles Muon Pair Creation by a High Energy Electron Takao Yamamoto...cross section for the muon pair creation by an electron...calculated at the incident energy about 1 Bev. At the angles of emitted muons theta+ = theta- 45......

Takao Yamamoto

1962-02-01T23:59:59.000Z

85

Exceptional Lie Algebras, SU(3) and Jordan Pairs  

E-Print Network [OSTI]

A simple unifying view of the exceptional Lie algebras is presented. The underlying Jordan pair content and role are exhibited. Each algebra contains three Jordan pairs sharing the same Lie algebra of automorphisms and the same external su(3) symmetry. Eventual physical applications and implications of the theory are outlined.

Piero Truini

2011-12-06T23:59:59.000Z

86

Density-matrix functionals for pairing in mesoscopic superconductors  

SciTech Connect (OSTI)

A functional theory based on single-particle occupation numbers is developed for pairing. This functional, that generalizes the Bardeen-Cooper-Schrieffer approach, directly incorporates corrections due to particle number conservation. The functional is benchmarked with the pairing Hamiltonian and reproduces perfectly the energy for any particle number and coupling.

Lacroix, Denis; Hupin, Guillaume [GANIL, CEA/DSM-CNRS/IN2P3, BP 55027, 14076 Caen Cedex 5 (France)

2010-10-01T23:59:59.000Z

87

Liquid pair correlations in four spatial dimensions: Theory versus simulation  

E-Print Network [OSTI]

Using liquid integral equation theory, we calculate the pair correlations of particles that interact via a smooth repulsive pair potential in d = 4 spatial dimensions. We discuss the performance of different closures for the Ornstein-Zernike equation, by comparing the results to computer simulation data. Our results are of relevance to understand crystal and glass formation in high-dimensional systems.

M. Heinen; J. Horbach; H. Lwen

2014-11-06T23:59:59.000Z

88

Noise properties of mutually sustained microwave-optoelectronic oscillator pair  

E-Print Network [OSTI]

Noise properties of mutually sustained microwave-optoelectronic oscillator pair E. Shumakher and G microwave-optoelectronic oscillator pair are described. The two oscillators have different spectral purities and exhibits low phase noise and highly suppressed spurious modes. Optoelectronic oscillators are employed

Eisenstein, Gadi

89

LCPHSM2004005 Study of Higgs Boson Pair Production at  

E-Print Network [OSTI]

LC­PHSM­2004­005 March 2004 Study of Higgs Boson Pair Production at Linear Collider K. Desch a , TV for the measurement of the neutral Higgs boson properties within the framework of the MSSM. The process of associated Higgs boson production with subsequent decays of Higgs bosons into b­quark and #­lepton pairs

90

Template:LabelValuePair | Open Energy Information  

Open Energy Info (EERE)

LabelValuePair LabelValuePair Jump to: navigation, search This is the 'LabelValuePair' template. It is typically used to display the results of an ask or sparql query in a simple label: value format. It is used by many pages, including the sub pages for country profiles, and is most frequently called as the template parameter in a query returned as format=template. For more help on this, see Extension:SparqlExtension, Template Help. Parameters label - The label, property or predicate of the query. value - The value or object specified in the query. Usage It should be called in the following format: {{#sparql SELECT ... |format=template |template=LabelValuePair |.. }} Edit the page to see the template text. Retrieved from "http://en.openei.org/w/index.php?title=Template:LabelValuePair&oldid=37488

91

Microsoft Word - RIN 07040836 DocProd.doc  

Office of Legacy Management (LM)

page intentionally left blank page intentionally left blank U.S. Department of Energy DVPMay 2007, Gunnison, Colorado, Processing Site August 2007 RIN 07040836 Page iii Contents Sampling Event Summary ...............................................................................................................1 Gunnison, Colorado, Processing Site Sample Location Map ..........................................................3

92

Microsoft Word - RIN 06110582_DocProd.doc  

Office of Legacy Management (LM)

448 448 2007 - - U.S. Department of Energy Office of Legacy Management Work Performed by the S.M. Stoller Corporation Under DOE Contract No. for the U.S. Department of Energy Office of Legacy Management. Approved for public release; distribution is unlimited. DE-AC01-02GJ79491 December 2006, Monument Valley, Arizona This page intentionally left blank U.S. Department of Energy DVP⎯December 2006, Monument Valley, Arizona March 2007 RIN 06110582 Page iii Contents Sampling Event Summary ...............................................................................................................1 Sample Locations at Monument Valley, Arizona, Processing Site .................................................3 Data Assessment Summary..............................................................................................................5

93

Microsoft Word - RIN 08061655 DocProd.doc  

Office of Legacy Management (LM)

8 8 Groundwater Sampling at the Monument Valley, Arizona, Processing Site November 2008 LMS/MON/S00608 This page intentionally left blank U.S. Department of Energy DVP-June 2008, Monument Valley, Arizona, Processing Site November 2008 RIN 08061655 Page i Contents Sampling Event Summary ...............................................................................................................1 Monument Valley, Arizona, Processing Site Sample Locations .....................................................3 Data Assessment Summary..............................................................................................................5 Water Sampling Field Activities Verification Checklist .............................................................7

94

43029CO2Prod | netl.doe.gov  

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

accessible to reservoir engineers, geologists, utility planners, and researchers studying carbon sequestration. Performers University of Alabama at Birmingham, Birmingham, AL...

95

1112303-prrc-abstract-prod-water | netl.doe.gov  

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

11123-03 Primary Performer Petroleum Recovery Research Center (PRRC) of the New Mexico Institute of Mining and Technology (Socorro, NM) Additional Participants New Mexico...

96

Microsoft Word - 08041519_08051593_DocProd.doc  

Office of Legacy Management (LM)

* Replicate analysis not within control limits. > Result above upper detection limit. A TIC is a suspected aldol-condensation product. B Inorganic: Result is between the IDL and...

97

Microsoft Word - RIN 08071743 DocProd.doc  

Office of Legacy Management (LM)

* Replicate analysis not within control limits. > Result above upper detection limit. A TIC is a suspected aldol-condensation product. B Inorganic: Result is between the IDL and...

98

Microsoft Word - RIN 08051595 DocProd.doc  

Office of Legacy Management (LM)

08 Groundwater and Surface Water Sampling at the Durango, Colorado Disposal and Processing Sites August 2008 LMSDURS00608 This page intentionally left blank U.S. Department of...

99

Microsoft Word - RIN 07081119 DocProd.doc  

Office of Legacy Management (LM)

85 2008 - - U.S. Department of Energy Office of Legacy Management Work Performed by the S.M. Stoller Corporation Under DOE Contract No. for the U.S. Department of Energy Office of...

100

Microsoft Word - RIN07050889_ DocProd.doc  

Office of Legacy Management (LM)

512 2007 - - U.S. Department of Energy Office of Legacy Management Work Performed by the S.M. Stoller Corporation Under DOE Contract No. for the U.S. Department of Energy Office of...

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Coulomb Drag at ?=12: Composite Fermion Pairing Fluctuations  

Science Journals Connector (OSTI)

We consider the Coulomb drag between two two-dimensional electron layers at filling factor ?=12 each, using a strong-coupling approach within the composite fermion picture. Because of an attractive interlayer interaction, composite fermions are expected to form a paired state below a critical temperature Tc. We find that above Tc pairing fluctuations make the longitudinal transresistivity ?D increase with decreasing temperature. The pairing mechanism we study is very sensitive to density variations in the two layers, and to an applied current. We discuss a possible relation to an experiment by Lilly et al. [Phys. Rev. Lett. 80, 1714 (1998)].

Iddo Ussishkin and Ady Stern

1998-11-02T23:59:59.000Z

102

QED peripheral mechanism of pair production at colliders  

SciTech Connect (OSTI)

Cross sections of the processes of production of neutral pions and pairs of charged fermions and bosons in peripheral interaction of leptons and photons are calculated in the main logarithmic approximation. We investigate the phase volumes and differential cross sections. The differential cross sections of production of a few neutral pions and a few pairs are written down explicitly. Considering the academic problem of summation over a number of pairs for massless particles we reproduce the known results obtained in the 1970s. The possibility of constructing the generator for Monte Carlo modeling of these processes based on these results is discussed.

Ahmadov, A. I.; Galynskii, M. V.; Bystritskiy, Yu. M.; Kuraev, E. A.; Shatnev, M. G. [Joint Institute for Nuclear Research, Dubna, Russia, and Institute of Physics, Azerbaijan National Academy of Sciences, Baku (Azerbaijan); Institute of Physics, Minsk (Belarus); Joint Institute for Nuclear Research, Dubna (Russian Federation); Kharkov Institute of Physics and Technology, Kharkov, 61108 (Ukraine)

2008-10-01T23:59:59.000Z

103

Effective field theory for dilute fermions with pairing  

SciTech Connect (OSTI)

Effective field theory (EFT) methods for a uniform system of fermions with short-range, natural interactions are extended to include pairing correlations, as part of a program to develop a systematic Kohn-Sham density functional theory (DFT) for medium and heavy nuclei. An effective action formalism for local composite operators leads to a free-energy functional that includes pairing by applying an inversion method order by order in the EFT expansion. A consistent renormalization scheme is demonstrated for the uniform system through next-to-leading order, which includes induced-interaction corrections to pairing.

Furnstahl, R.J. [Department of Physics, Ohio State University, Columbus, OH 43210 (United States)], E-mail: furnstahl.1@osu.edu; Hammer, H.-W. [Helmholtz-Institut fuer Strahlen- und Kernphysik (Theorie), Universitaet Bonn, Nussallee 14-16, D-53115 Bonn (Germany)], E-mail: hammer@itkp.uni-bonn.de; Puglia, S.J. [SBIG PLC, Berkeley Square House, London W1J 6BR (United Kingdom)], E-mail: spuglia@sbiguk.com

2007-11-15T23:59:59.000Z

104

Pairs Emission in a Uniform Background Field: an Algebraic Approach  

E-Print Network [OSTI]

A fully algebraic general approach is developed to treat the pairs emission and absorption in the presence of some uniform external background field. In particular, it is shown that the pairs production and annihilation operators, together with the pairs number operator, do actually fulfill the SU(2) functional Lie algebra. As an example of application, the celebrated Schwinger formula is consistently and nicely recovered, within this novel approach, for a Dirac spinor field in the presence of a constant and homogeneous electric field in four spacetime dimensions.

Roberto Soldati

2011-06-23T23:59:59.000Z

105

Can a wormhole be interpreted as an EPR pair?  

E-Print Network [OSTI]

Recently, Maldacena and Susskind arXiv:1306.0533 and Jensen and Karch arXiv:1307.1132 argued that a wormhole can be interpreted as an EPR pair. We point out that a convincing justification of such an interpretation would require a quantitative evidence that correlations between two ends of the wormhole are equal to those between the members of the EPR pair. As long as the existing results do not contain such evidence, the interpretation of wormhole as an EPR pair does not seem justified.

Nikolic, H

2013-01-01T23:59:59.000Z

106

Pairing states of superfluid He3 in uniaxially anisotropic aerogel  

Science Journals Connector (OSTI)

Stable pairing states of superfluid He3 in aerogel are examined in the case with a global uniaxial anisotropy which may be created by applying a uniaxial stress to the aerogel. Due to such a global anisotropy, the stability region of an Anderson-Brinkman-Morel (ABM) pairing state becomes wider. In a uniaxially stretched aerogel, the pure polar pairing state with a horizontal line node is predicted to occur, as a three-dimensional superfluid phase, over a measurable width just below the superfluid transition at Tc(P). A possible relevance of the present results to the case with no global anisotropy is also discussed.

Kazushi Aoyama and Ryusuke Ikeda

2006-02-16T23:59:59.000Z

107

Covariant Wave Function Reduction and Coherent Decays of Kaon Pair  

E-Print Network [OSTI]

The recently developed relativistically covariant formulation of wave function reduction is illustrated for Lipkin's proposal to study CP violation in the coherent decay of kaon pairs. Covariant results are obtained in agreement with an amplitude approach proposed in the literature.

Bernd A. Berg

1998-09-12T23:59:59.000Z

108

Signed-Rank Tests for Censored Matched Pairs  

E-Print Network [OSTI]

Z . (1967), The Theory of Rank Tests, New York: AcademicT. R. (1982), " A Class of Rank Test Procedures for Censored1983), " A Modified Wilcoxon Rank Sum Test for Paired Data,"

Dorota M. Dabrowska

2011-01-01T23:59:59.000Z

109

On the Anonymity of Home/Work Location Pairs  

E-Print Network [OSTI]

On the Anonymity of Home/Work Location Pairs Philippe Golle and Kurt Partridge Palo Alto Research population is 1, 21 and 34,980, for locations known at the granularity of a census block, census track

Golle, Philippe

110

Macro-coherent two photon and radiative neutrino pair emission  

E-Print Network [OSTI]

We discuss a possibility of detecting a coherent photon pair emission and related radiative neutrino pair emission from excited atoms. It is shown that atoms of lambda- and ladder-type three level system placed in a pencil-like cylinder give a back to back emission of two photons of equal energy $\\Delta/2$, sharply peaked with a width $\\propto $ 1/(target size) and well collimated along the cylinder axis. This process has a measurable rate $\\propto$ (target number density) $^2 \\times$ target volume, while a broader spectral feature of one-photon distribution separated by (mass sum of a neutrino pair)$^2/(2\\Delta)$ from the two photon peak may arise from radiative neutrino pair emission, with a much smaller rate.

M. Yoshimura; C. Ohae; A. Fukumi; K. Nakajima; I. Nakano; H. Nanjo; N. Sasao

2008-05-14T23:59:59.000Z

111

Top quark pair cross section prospects in ATLAS  

E-Print Network [OSTI]

The observation of the top quark will be an important milestone in ATLAS. This talk reviews methods that ATLAS plans to use to observe the top quark pair production process and measure its cross section.

Andrei Gaponenko; for the ATLAS Collaboration

2009-10-20T23:59:59.000Z

112

Paired Straight Hearth Furnace-Transformational Ironmaking Process  

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

based on the Paired Straight Hearth Furnace (PSH) for iron ore reduction y PSH is a coal and natural gas coke-free process most suitable for American fine concentrates y PSH...

113

Formation of Cooper pairs as a consequence of exchange interaction  

E-Print Network [OSTI]

Pairing of two electrons with antiparallel spins may lead to energy minimization of each of the paired electrons. Thus the exchange interaction causes a bond between two valence electrons in a crystal. This can be proved analyzing the energy of each valence electron in the field of the one-valent metallic crystal on assumption that all other kinds of magnetic spin ordering in the crystal are negligible.

Dolgopolov, Stanislav

2015-01-01T23:59:59.000Z

114

CP violation in fermion pair decays of neutral boson particles  

Science Journals Connector (OSTI)

We study CP violation in fermion pair decays of neutral boson particles with spin 0 or 1. We study a new asymmetry to measure CP violation in ?, KL??+?- decays and discuss the possibility of measuring it experimentally. For the spin-1 particles case, we study CP violation in the decays of J/? to SU(3) octet baryon pairs. We show that these decays can be used to put stringent constraints on the electric dipole moments of ?, ?, and ?.

Xiao-Gang He; J. P. Ma; Bruce McKellar

1994-05-01T23:59:59.000Z

115

Possibility of Prolific Pair Production with High-Power Lasers  

SciTech Connect (OSTI)

Prolific electron-positron pair production is possible at laser intensities approaching 10{sup 24} W cm{sup -2} at a wavelength of 1 {mu}m. An analysis of electron trajectories and interactions at the nodes (B=0) of two counterpropagating, circularly polarized laser beams shows that a cascade of {gamma} rays and pairs develops. The geometry is generalized qualitatively to linear polarization and laser beams incident on a solid target.

Bell, A. R.; Kirk, John G. [Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom) and STFC Central Laser Facility, RAL, Didcot, OX11 0QX (United Kingdom); Max-Planck-Institut fuer Kernphysik, Saupfercheckweg, 1, D-69117, Heidelberg (Germany)

2008-11-14T23:59:59.000Z

116

Formation of Cooper pairs as a consequence of exchange interaction  

E-Print Network [OSTI]

Pairing of two electrons with antiparallel spins may lead to energy minimization of each of the paired electrons. Thus the exchange interaction causes a bond between two valence electrons in a crystal. This can be proved analyzing the energy of each valence electron in the field of the one-valent metallic crystal on assumption that all other kinds of magnetic spin ordering in the crystal are negligible.

Stanislav Dolgopolov

2015-01-15T23:59:59.000Z

117

From an insulating to a superfluid pair-bond liquid  

Science Journals Connector (OSTI)

We study an exchange coupled system of itinerant electrons and localized fermion pairs resulting in a resonant pairing formation. This system inherently contains resonating fermion pairs on bonds that lead to a superconducting phase, provided that long-range phase coherence between their constituents can be established. The prerequisite is that the resonating fermion pairs can become itinerant. This is rendered possible through the emergence of two kinds of bond fermions: individual and composite fermions made of one individual electron attached to a bound pair on a bond. If the strength of the exchange coupling exceeds a certain value, then the superconducting ground state undergoes a quantum phase transition into an insulating pair-bond liquid state. The gap of the superfluid phase thereby goes over continuously into a charge gap of the insulator. The changeover from the superconducting to the insulating phase is accompanied by a corresponding qualitative modification of the dispersion of the two kinds of fermionic excitations. Using a bond operator formalism, we derive the phase diagram of such a scenario together with the elementary excitations characterizing the various phases as a function of the exchange coupling and the temperature.

M. Cuoco and J. Ranninger

2006-09-20T23:59:59.000Z

118

Polarization operator approach to pair creation in short laser pulses  

E-Print Network [OSTI]

Short-pulse effects are investigated for the nonlinear Breit-Wheeler process, i.e. the production of an electron-positron pair induced by a gamma photon inside an intense plane-wave laser pulse. To obtain the total pair-creation probability we verify (to leading-order) the cutting rule for the polarization operator in the realm of strong-field QED by an explicit calculation. Using a double-integral representation for the leading-order contribution to the polarization operator, compact expressions for the total pair-creation probability inside an arbitrary plane-wave background field are derived. Correspondingly, the photon wave function including leading-order radiative corrections in the laser field is obtained via the Schwinger-Dyson equation in the quasistatic approximation. Moreover, the influence of the carrier-envelope phase and of the laser pulse shape on the total pair-creation probability in a linearly polarized laser pulse is investigated, and the validity of the (local) constant-crossed field approximation analyzed. It is shown that with presently available technology pair-creation probabilities of the order of ten percent could be reached for a single gamma photon.

Sebastian Meuren; Karen Z. Hatsagortsyan; Christoph H. Keitel; Antonino Di Piazza

2015-01-28T23:59:59.000Z

119

Exact eigenvalues of the pairing Hamiltonian using continuum level density  

Science Journals Connector (OSTI)

The pairing Hamiltonian constitutes an important approximation in many-body systems; it is exactly soluble and quantum integrable. On the other hand, the continuum single-particle level density (CSPLD) contains information about the continuum energy spectrum. The question of whether one can use the Hamiltonian with constant pairing strength for correlations in the continuum is still unanswered. In this paper we generalize the Richardson exact solution for the pairing Hamiltonian including correlations in the continuum. The resonant and nonresonant continua are included through the CSPLD. The resonant correlations are made explicit by using the Cauchy theorem. Low-lying states with seniority 0 and 2 are calculated for the even carbon isotopes. We conclude that energy levels can indeed be calculated with constant pairing in the continuum using the CSPLD. It is found that the nucleus 24C is unbound. The real and complex energy representations of the continuum is developed and their differences are shown. The trajectory of the pair energies in the continuum for the nucleus 28C is shown.

R. Id Betan

2012-06-07T23:59:59.000Z

120

Energy Efficiency and Fitness - A Complementary Pair | Department of  

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

Efficiency and Fitness - A Complementary Pair Efficiency and Fitness - A Complementary Pair Energy Efficiency and Fitness - A Complementary Pair June 23, 2011 - 4:15pm Addthis Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs I recently read about a study on fidgeting or as researchers refer to it-incidental physical activity. The study shows that the small collection of movements we often find inconsequential-like drumming your fingers, tapping your foot, or running after the bus-have significant health and cardiovascular benefits. The more I thought about it the more I realized that many everyday activities that contribute to overall fitness turn out to be quite energy-efficient and environmentally friendly as well. Take my commute for instance-every weekday I cram my way into a crowded

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Energy Efficiency and Fitness - A Complementary Pair | Department of  

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

Energy Efficiency and Fitness - A Complementary Pair Energy Efficiency and Fitness - A Complementary Pair Energy Efficiency and Fitness - A Complementary Pair June 23, 2011 - 4:15pm Addthis Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs I recently read about a study on fidgeting or as researchers refer to it-incidental physical activity. The study shows that the small collection of movements we often find inconsequential-like drumming your fingers, tapping your foot, or running after the bus-have significant health and cardiovascular benefits. The more I thought about it the more I realized that many everyday activities that contribute to overall fitness turn out to be quite energy-efficient and environmentally friendly as well. Take my commute for instance-every weekday I cram my way into a crowded

122

Repulsive aspects of pairing correlation in nuclear fusion reaction  

E-Print Network [OSTI]

Numerical simulation on nuclear collisions are performed using the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory (Cb-TDHFB) in the three-dimensional coordinate space. Comparing results of the Cb-TDHFB and the conventional time-dependent Hartree-Fock (TDHF) calculations, we study effects of the pairing correlation on fusion reaction of $^{22}$O+$^{22}$O, $^{52}$Ca+$^{52}$Ca, and $^{22}$O+$^{52}$Ca, using the Skyrme SkM$^*$ functional and a contact-type pairing energy functional. Although current results are yet preliminary, they may suggest that the pairing correlation could hinder the fusion probability at energies in the vicinity of the Coulomb barrier height. We also perform a calculation for heavier nuclei, $^{96}$Zn+$^{124}$Sn, which seems to suggest a similar hindrance effect.

Shuichiro Ebata; Takashi Nakatsukasa

2014-08-08T23:59:59.000Z

123

Repulsive aspects of pairing correlation in nuclear fusion reaction  

E-Print Network [OSTI]

Numerical simulation on nuclear collisions are performed using the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory (Cb-TDHFB) in the three-dimensional coordinate space. Comparing results of the Cb-TDHFB and the conventional time-dependent Hartree-Fock (TDHF) calculations, we study effects of the pairing correlation on fusion reaction of $^{22}$O+$^{22}$O, $^{52}$Ca+$^{52}$Ca, and $^{22}$O+$^{52}$Ca, using the Skyrme SkM$^*$ functional and a contact-type pairing energy functional. Although current results are yet preliminary, they may suggest that the pairing correlation could hinder the fusion probability at energies in the vicinity of the Coulomb barrier height. We also perform a calculation for heavier nuclei, $^{96}$Zn+$^{124}$Sn, which seems to suggest a similar hindrance effect.

Ebata, Shuichiro

2014-01-01T23:59:59.000Z

124

Isovector pairing collective motion: Generator-coordinate-method approach  

Science Journals Connector (OSTI)

Isovector pairing collective motion is treated by means of the generator coordinate method. In this scheme, the isospin and number projection is performed analytically by the recognition of symmetry properties in the generalized Bardeen-Cooper-Schrieffer wave functions. Among the results obtained, our generator-coordinate-method values of energy and spectroscopic amplitude are shown to be comparable to those of shell model calculations. This is indeed encouraging, especially in view of the fact that they were reached using a simple approximation. The great simplicity of the present method, as compared with earlier complicated versions, suggests that they might prove useful in the study of isovector pairing collective states which are strongly populated by pair transfer reactions in medium weight nuclei.

Mauro Kyotoku and Hsi-Tseng Chen

1987-09-01T23:59:59.000Z

125

A pair of oscillators interacting with a common heat bath  

E-Print Network [OSTI]

Here the problem considered is that of a pair of oscillators coupled to a common heat bath. Many, if not most, discussions of a single operator coupled to a bath have used the independent oscillator model of the bath. However, that model has no notion of separation, so the question of phenomena when the oscillators are near one another compared with when they are widely separated cannot be addressed. Here the Lamb model of an oscillator attached to a stretched string is generalized to illustrate some of these questions. The coupled Langevin equations for a pair of oscillators attached to the string at different points are derived and their limits for large and small separations obtained. Finally, as an illustration of a different phenomenon, the fluctuation force between a pair of masses attached to the string is calculated, with closed form expressions for the force at small and large separations.

G. W. Ford; R. F. O'Connell

2014-08-25T23:59:59.000Z

126

Locatingpaired-dominating sets in square grids  

Science Journals Connector (OSTI)

Abstract A set S of vertices of a graph G is paired-dominating if S induces a matching in G and S dominates all vertices of G . A set S ? V ( G ) is locating if for any two distinct vertices u , v ? V ( G ) ? S , N ( u ) ? S ? N ( v ) ? S , where N ( u ) and N ( v ) are open neighborhoods of vertices u and v . We give a complete characterization of locatingpaired-dominating sets with minimal density in the infinite square grid Z 2 .

?udovt Niepel

2014-01-01T23:59:59.000Z

127

Landau-Zener Transitions in Frozen Pairs of Rydberg Atoms  

SciTech Connect (OSTI)

We have induced adiabatic transitions in pairs of frozen Rydberg sodium atoms of a supersonic beam. The diatomic ns+ns{yields}np+(n-1)p transition takes place in a time-dependent electric field and originates from the adiabatic change of the internal state of the pair induced by the dipole-dipole interaction. This is experimentally achieved by sweeping an electric field across the energy degeneracy ns ns-np(n-1)p. Our results fully agree with a two-level Landau-Zener model in the diatom system.

Saquet, Nicolas; Cournol, Anne; Beugnon, Jerome; Robert, Jacques; Pillet, Pierre; Vanhaecke, Nicolas [Laboratoire Aime Cotton, CNRS, Batiment 505, Universite Paris-Sud, 91405 Orsay (France)

2010-04-02T23:59:59.000Z

128

Muon Bremsstrahlung and Muonic Pair Production in Air Showers  

E-Print Network [OSTI]

The objective of this work is to report on the modifications in air shower development due to muon bremsstrahlung and muonic pair production. In order to do that we have implemented new muon bremsstrahlung and muonic pair production procedures in the AIRES air shower simulation system, and have used it to simulate ultra high energy showers in different conditions. The influence of the mentioned processes in the global development of the air shower is important for primary particles of large zenith angles, while they do not introduce significant changes in the position of the shower maximum.

A. Cillis; S. J. Sciutto

2000-06-08T23:59:59.000Z

129

The effect of dimensional preference on paired-associate learning  

E-Print Network [OSTI]

THE EFFECT OF DIMENSIONAL PREFERENCE ON PAIRED-ASSOCIATE LEARNING A Th sis by DAYID HENRY GILL Submitted to the Graduate Co'liege of Texas AIM University in partial fulfillment of the requirement for the degree of MA TER OF SCIENCE August... 1970 Major Subject: Psychology THE EFFECT OF DIMENSIONAL PREFERENCE ON PAIRED-ASSOCIATE LEARNING A Thesis by DAVID HENRY GILL Approved as to style and content by: Chairman o Committee a Lo Member) of o pe t~ent Member August 1970 ADSTRACT...

Gill, David Henry

1970-01-01T23:59:59.000Z

130

Thermal tunneling of qq pairs in A-A collisions  

Science Journals Connector (OSTI)

Consideration of various time scales in A-A collisions suggests that it is relevant to determine qq pair production rate at finite temperature. We have evaluated this rate using standard techniques of finite temperature field theory. At high temperature the rate is proportional to T2 and has a value higher than the rate at T=0. It is also observed that the rate of pair production decreases as one moves away from the Lorentz contracted nuclei, towards the center in the c.m. coordinate system.

Avijit K. Ganguly; Predhiman K. Kaw; Jitendra C. Parikh

1995-04-01T23:59:59.000Z

131

Cylindrically confined pair-ion-electron and pair-ion plasmas having axial sheared flow and radial gradients  

SciTech Connect (OSTI)

The linear and nonlinear dynamics of pair-ion (PI) and pair-ion-electron plasmas (PIE) have been investigated in a cylindrical geometry with a sheared plasma flow along the axial direction having radial dependence. The coupled linear dispersion relation of low frequency electrostatic waves has been presented taking into account the Guassian profile of density and linear gradient of sheared flow. It is pointed out that the quasi-neutral cold inhomogeneous pure pair ion plasma supports only the obliquely propagating convective cell mode. The linear dispersion relation of this mode has been solved using boundary conditions. The nonlinear structures in the form of vortices formed by different waves have been discussed in PI and PIE plasmas.

Batool, Nazia; Saleem, H. [National Centre for Physics (NCP), Quaid-i-Azam University Campus, Islamabad (Pakistan)] [National Centre for Physics (NCP), Quaid-i-Azam University Campus, Islamabad (Pakistan)

2013-10-15T23:59:59.000Z

132

First Energy and Angle differential Measurements of e^+e^- -pairs emitted by Internal Pair Conversion of excited Heavy Nuclei  

E-Print Network [OSTI]

We present the first energy and angle resolved measurements of e+e- pairs emitted from heavy nuclei (Z>=40) at rest by internal pair conversion (IPC) of transitions with energies of less than 2MeV as well as recent theoretical results using the DWBA method, which takes full account of relativistic effects, magnetic substates and finite size of the nucleus. The 1.76MeV E0 transition in Zr90 (Sr source) and the 1.77MeV M1 transition in Pb207 (Bi source) have been investigated experimentally using the essentially improved set-up at the double-ORANGE beta-spectrometer of GSI. The measurements prove the capability of the setup to cleanly identify the IPC pairs in the presence of five orders of magnitude higher beta- and gamma background from the same source and to yield essentially background-free sum spectra despite the large background. Using the ability of the ORANGE setup to directly determine the opening angle of the e+e- pairs, the angular correlation of the emitted pairs was measured. In the Zr90 case the correlation could be deduced for a wide range of energy differences of the pairs. The Zr90 results are in good agreement with recent theory. The angular correlation deduced for the M1 transition in Pb207 is in strong disagreement with theoretical predictions derived within the Born approximation and shows almost isotropic character. This is again in agreement with the new theoretical results.

U. Leinberger; E. Berdermann; F. Heine; S. Heinz; O. Joeres; P. Kienle; I. Koenig; W. Koenig; C. Kozhuharov; A. Schroeter; H. Tsertos; C. Hofmann; G. Soff

1997-04-18T23:59:59.000Z

133

Radiative proton-antiproton annihilation to a lepton pair  

SciTech Connect (OSTI)

The annihilation of proton and antiproton to an electron-positron pair, including radiative corrections due to the emission of virtual and real photons is considered. The results are generalized to leading and next-to leading approximations. The relevant distributions are derived and numerical applications are given in the kinematical range accessible to the PANDA experiment at the FAIR facility.

Ahmadov, A. I. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Institute of Physics, Azerbaijan National Academy of Sciences, Baku (Azerbaijan); Bytev, V. V.; Kuraev, E. A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Tomasi-Gustafsson, E. [CEA, IRFU, SPhN, Saclay, 91191 Gif-sur-Yvette Cedex, France, and CNRS/IN2P3, Institut de Physique Nucleaire, UMR 8608, 91405 Orsay (France)

2010-11-01T23:59:59.000Z

134

OD3P: On-Demand Page Paired PCM  

Science Journals Connector (OSTI)

With current memory scalability challenges, Phase Change Memory (PCM) is viewed as an attractive replacement to DRAM. The preliminary concern for PCM applicability is its limited write endurance that is highly affected by process variation in nanometer ... Keywords: Lifetime, Page Pairing

Marjan Asadinia, Mohammad Arjomand, Hamid Sarbazi-Azad

2014-06-01T23:59:59.000Z

135

Chimeric transcript discovery by paired-end transcriptome sequencing  

Science Journals Connector (OSTI)

...Strategy Against Existing Single Read Approaches. To assess the merit of adopting a paired-end transcriptome approach, we compared...prepared using QiagenTips-100 (Qiagen). DNA was labeled by nick translation labeling with biotin-16-dUTP and digoxigenin-11-dUTP...

Christopher A. Maher; Nallasivam Palanisamy; John C. Brenner; Xuhong Cao; Shanker Kalyana-Sundaram; Shujun Luo; Irina Khrebtukova; Terrence R. Barrette; Catherine Grasso; Jindan Yu; Robert J. Lonigro; Gary Schroth; Chandan Kumar-Sinha; Arul M. Chinnaiyan

2009-01-01T23:59:59.000Z

136

Creation and pinning of vortex-antivortex pairs  

E-Print Network [OSTI]

Computer modeling is reported about the creation and pinning of a magnetic vortex-antivortex (V-AV) pair in a superconducting thin film, due to the magnetic field of a vertical magnetic dipole above the film, and two antidot pins inside the film...

Kim, Sangbum; Hu, Chia-Ren; Andrews, Malcolm J.

2006-01-01T23:59:59.000Z

137

Magnetic Pair Creation Transparency in Gamma-Ray Pulsars  

E-Print Network [OSTI]

Magnetic pair creation $\\gamma \\to e^+e^-$ has been at the core of radio pulsar paradigms and central to polar cap models of gamma-ray pulsars for over three decades. The Fermi gamma-ray pulsar population now exceeds 140 sources and has defined an important part of Fermi's science legacy. Among the population characteristics well established is the common occurrence of exponential turnovers in their spectra in the 1--10 GeV range. These turnovers are too gradual to arise from magnetic pair creation in the strong magnetic fields of pulsar inner magnetospheres. By demanding insignificant photon attenuation precipitated by such single-photon pair creation, the energies of these turnovers for Fermi pulsars can be used to compute lower bounds for the typical altitude of GeV band emission. This paper explores such pair transparency constraints below the turnover energy, and updates earlier altitude bound determinations of that have been deployed in various Fermi pulsar papers. For low altitude emission locales, gen...

Story, Sarah A

2014-01-01T23:59:59.000Z

138

ENERGY LEVEL SPECTROSCOPY OF A BOUND VORTEX-ANTIVORTEX PAIR  

E-Print Network [OSTI]

vortex- antivortex (VAV) state in an annular Josephson junction. The bound VAV pair is formed microwave spectroscopy. Keywords: Macroscopic quantum effects, long Josephson junctions, vortex­9]. Most of the studied systems, such as dc-biased Josephson junctions (JJ), supercon- ducting quantum

Wallraff, Andreas

139

The environment of low-redshift quasar pairs  

Science Journals Connector (OSTI)

......2014 research-article Article The environment of low-redshift quasar pairs A. Sandrinelli...investigate the properties of the galaxy environment of a sample of 14 low-redshift (z...separation does not require any extraordinary environment. galaxies: clusters: general|quasars......

A. Sandrinelli; R. Falomo; A. Treves; E. P. Farina; M. Uslenghi

2014-01-01T23:59:59.000Z

140

Vector- and Scalar-Bilepton Pair Production in Hadron Colliders  

E-Print Network [OSTI]

We study the double-charged vector-bilepton pair production and double-charged scalar-bilepton pair production {\\it via} $p + p \\longrightarrow Y^{++} + Y^{--} + X$ and $p + p \\longrightarrow S_1^{++} + S_1^{--} + X$, where $Y$ and $S_1$ are vector and scalar bileptons respectively, in the framework of the minimal version of the 3-3-1 model. We compute the photon, $Z$, and $Z^\\prime$ s-channel contributions for the elementary process of bilepton scalar pair production, and to keep the correct unitarity behavior for the elementary $q \\bar q$ interaction, we include the exotic quark t-channel contribution in the vector-bilepton pair production calculation. We explore a mass range for $Z^\\prime$ and we fix the exotic quark mass within the experimental bounds. In this model, the vector-bilepton mass is directly related to $M_{Z^\\prime}$ and we consider scalar mass values around the vector-bilepton mass. We show that the total cross section for vector-bilepton production is 3 orders of magnitude larger than for scalar pair production for $\\sqrt s= 7$ TeV and 14 TeV and we obtain the number of events for the proposed LHC luminosities as a function of the bilepton mass. In addition we present some invariant mass and transverse momentum distributions. When comparing these distributions we observe quite different behavior providing the determination of the bilepton nature. We conclude that one can disentangle the production rates and that the LHC can be capable of detecting these predicted particles as a signal for new physics.

E. Ramirez Barreto; Y. A. Coutinho; J. S Borges

2011-03-07T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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141

THE PAIR FRACTION OF MASSIVE GALAXIES AT 0 {<=} z {<=} 3  

SciTech Connect (OSTI)

Using a mass-selected (M{sub *} {>=} 10{sup 11} M{sub Sun }) sample of 198 galaxies at 0 {<=} z {<=} 3.0 with Hubble Space Telescope/NICMOS H{sub 160}-band images from the COSMOS survey, we find evidence for the evolution of the pair fraction above z {approx} 2, an epoch in which massive galaxies are believed to undergo significant structural and mass evolution. We observe that the pair fraction of massive galaxies is 0.15 {+-} 0.08 at 1.7 {<=}z {<=} 3.0, where galaxy pairs are defined as massive galaxies having a companion of flux ratio from 1:1 to 1:4 within a projected separation of 30 kpc. This is slightly lower but still consistent with the pair fraction measured previously in other studies, and the merger fraction predicted in halo-occupation modeling. The redshift evolution of the pair fraction is described by a power law F(z) = (0.07 {+-} 0.04) Multiplication-Sign (1 + z){sup 0.6{+-}0.5}. The merger rate is consistent with no redshift evolution; however it is difficult to constrain due to the limited sample size and the high uncertainties in the merging timescale. Based on the merger rate calculation, we estimate that a massive galaxy undergoes on average 1.1 {+-} 0.5 major mergers from z = 3 to 0. The observed merger fraction is sufficient to explain the number density evolution of massive galaxies, but insufficient to explain the size evolution. This is a hint that mechanism(s) other than major merging may be required to increase the sizes of the massive, compact quiescent galaxies from z {approx} 2 to 0.

Man, Allison W. S.; Toft, Sune; Zirm, Andrew W. [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen (Denmark); Wuyts, Stijn [Max-Planck-Institut fuer Extraterrestrische Physik, Garching bei Muenchen (Germany); Van der Wel, Arjen, E-mail: allison@dark-cosmology.dk, E-mail: sune@dark-cosmology.dk, E-mail: azirm@dark-cosmology.dk, E-mail: swuyts@mpe.mpg.de, E-mail: vdwel@mpia.de [Max-Planck-Institut fuer Astronomie, Heidelberg (Germany)

2012-01-10T23:59:59.000Z

142

Observation of Muon Pairs in High-Energy Hadron Collisions  

Science Journals Connector (OSTI)

Muon pairs with effective masses between 1 GeV/c2 and 6.5 GeV/c2 have been observed in the collisions of 30-GeV protons with a uranium target. The production cross section was seen to vary smoothly with mass exhibiting no resonant structure. Data were taken at incident proton energies of 22, 25, 28.5, and 29.5 GeV. Within the experimental aperture the total cross section increased with energy by a factor of 5. The experimental results are compared with the predictions of several theoretical models. Limits are presented for the contributions to the signal from both massive muon-pair resonances and antiproton-proton annihilation. Implications are presented for higher-energy accelerators, using current ideas involving scaling.

J. H. Christenson, G. S. Hicks, L. M. Lederman, P. J. Limon, B. G. Pope, and E. Zavattini

1973-10-01T23:59:59.000Z

143

Pair production in counter-propagating laser beams  

E-Print Network [OSTI]

Based on an analysis of a specific electron trajectory in counter-propagating beams, Bell & Kirk (PRL 101, 200403 (2008)) recently suggested that laboratory lasers may shortly be able to produce significant numbers of electron-positron pairs. We confirm their results using an improved treatment of nonlinear Compton scattering in the laser beams. Implementing an algorithm that integrates classical electron trajectories, we then examine a wide range of laser pulse shapes and polarizations. We find that counter-propagating, linearly polarized beams, with either aligned or crossed orientation, are likely to initiate a pair avalanche at intensities of approximately 10^{24} Watts/sq cm per beam. The same result is found by modelling one of the beams as a wave reflected at the surface of an overdense solid.

J. G. Kirk; A. R. Bell; I. Arka

2009-06-24T23:59:59.000Z

144

NNLO W Pair Production at the LHC: Status Report  

E-Print Network [OSTI]

We discuss the result with full mass dependence for the virtual NNLO QCD corrections to the W boson pair production in the quark-anti-quark annihilation channel. We also report on our progress regarding the treatment of the double-real radiative corrections which, along with the virtual-real corrections, are the other two necessary ingredients for a theoretical prediction of the total cross section for W+ W- production to NNLO accuracy.

Grigorios Chachamis

2013-12-16T23:59:59.000Z

145

Interference of Cooper pairs emitted from independent superconductors  

SciTech Connect (OSTI)

We discuss the interference in the two-particle distribution of the electrons emitted from two independent superconductors. It is clarified that, while the interference appearing in the antibunching correlation is due to the Hanbury Brown and Twiss effect, that in the positive correlation due to superconductivity is intrinsically different and is nothing but the first-order interference of Cooper pairs emitted from different sources. This is the equivalent of the interference of two independent Bose-Einstein condensates.

Iazzi, Mauro [International School for Advanced Studies (SISSA), via Beirut 2-4, I-34014 Trieste (Italy); Yuasa, Kazuya [Waseda Institute for Advanced Study, Waseda University, Tokyo 169-8050 (Japan)

2010-05-01T23:59:59.000Z

146

Interference of Cooper pairs emitted from independent superconductors  

Science Journals Connector (OSTI)

We discuss the interference in the two-particle distribution of the electrons emitted from two independent superconductors. It is clarified that, while the interference appearing in the antibunching correlation is due to the Hanbury Brown and Twiss effect, that in the positive correlation due to superconductivity is intrinsically different and is nothing but the first-order interference of Cooper pairs emitted from different sources. This is the equivalent of the interference of two independent Bose-Einstein condensates.

Mauro Iazzi and Kazuya Yuasa

2010-05-04T23:59:59.000Z

147

Double Pair Production by Ultra High Energy Cosmic Ray Photons  

E-Print Network [OSTI]

With use of CompHEP package we've made the detailed estimate of the influence of double e+e- pair production by photons (DPP) on the propagation of ultra high energy electromagnetic cascade. We show that in the models in which cosmic ray photons energy reaches few thousand EeV refined DPP analysis may lead to substantial difference in predicted photon spectrum compared to previous rough estimates.

S. V. Demidov; O. E. Kalashev

2008-12-22T23:59:59.000Z

148

Fourier Transform Pairs The Fourier transform transforms a function of  

E-Print Network [OSTI]

Fourier Transform Pairs The Fourier transform transforms a function of time, f(t), into a function of frequency, F(s): F {f(t)}(s) = F(s) = Z - f(t)e- j2st dt. The inverse Fourier transform transforms a func. The inverse Fourier transform of the Fourier trans- form is the identity transform: f(t) = Z - Z - f()e- j2s

Masci, Frank

149

Observation of $?_{c1}$ decays into vector meson pairs $??$, $??$, and $??$  

E-Print Network [OSTI]

Decays of $\\chi_{c1}$ to vector meson pairs $\\phi\\phi$, $\\omega\\omega$ and $\\omega\\phi$ are observed for the first time using $(106\\pm4)\\times 10^6$ $\\psip$ events accumulated at the BESIII detector at the BEPCII $e^+e^-$ collider. The branching fractions are measured to be $(4.4\\pm 0.3\\pm 0.5)\\times 10^{-4}$, $(6.0\\pm 0.3\\pm 0.7)\\times 10^{-4}$, and $(2.2\\pm 0.6\\pm 0.2)\\times 10^{-5}$, for $\\chi_{c1}\\to \\phi\\phi$, $\\omega\\omega$, and $\\omega\\phi$, respectively. The observation of $\\chi_{c1}$ decays into a pair of vector mesons $\\phi\\phi$, $\\omega\\omega$ and $\\omega\\phi$ indicates that the hadron helicity selection rule is significantly violated in $\\chi_{cJ}$ decays. In addition, the measurement of $\\chi_{cJ}\\to \\omega\\phi$ gives the rate of doubly OZI-suppressed decay. Branching fractions for $\\chi_{c0}$ and $\\chi_{c2}$ decays into other vector meson pairs are also measured with improved precision.

M. Ablikim; M. N. Achasov; L. An; Q. An; Z. H. An; J. Z. Bai; R. Baldini; Y. Ban; J. Becker; N. Berger; M. Bertani; J. M. Bian; O. Bondarenko; I. Boyko; R. A. Briere; V. Bytev; X. Cai; G. F. Cao; X. X. Cao; J. F. Chang; G. Chelkova; G. Chen; H. S. Chen; J. C. Chen; M. L. Chen; S. J. Chen; Y. Chen; Y. B. Chen; H. P. Cheng; Y. P. Chu; D. Cronin-Hennessy; H. L. Dai; J. P. Dai; D. Dedovich; Z. Y. Deng; I. Denysenkob; M. Destefanis; Y. Ding; L. Y. Dong; M. Y. Dong; S. X. Du; M. Y. Duan; R. R. Fan; J. Fang; S. S. Fang; C. Q. Feng; C. D. Fu; J. L. Fu; Y. Gao; C. Geng; K. Goetzen; W. X. Gong; M. Greco; S. Grishin; M. H. Gu; Y. T. Gu; Y. H. Guan; A. Q. Guo; L. B. Guo; Y. P. Guo; X. Q. Hao; F. A. Harris; K. L. He; M. He; Z. Y. He; Y. K. Heng; Z. L. Hou; H. M. Hu; J. F. Hu; T. Hu; B. Huang; G. M. Huang; J. S. Huang; X. T. Huang; Y. P. Huang; T. Hussain; C. S. Ji; Q. Ji; X. B. Ji; X. L. Ji; L. K. Jia; L. L. Jiang; X. S. Jiang; J. B. Jiao; Z. Jiao; D. P. Jin; S. Jin; F. F. Jing; M. Kavatsyuk; S. Komamiya; W. Kuehn; J. S. Lange; J. K. C. Leung; Cheng Li; Cui Li; D. M. Li; F. Li; G. Li; H. B. Li; J. C. Li; Lei Li; N. B. Li; Q. J. Li; W. D. Li; W. G. Li; X. L. Li; X. N. Li; X. Q. Li; X. R. Li; Z. B. Li; H. Liang; Y. F. Liang; Y. T. Liang; G. R Liao; X. T. Liao; B. J. Liu; B. J. Liu; C. L. Liu; C. X. Liu; C. Y. Liu; F. H. Liu; Fang Liu; Feng Liu; G. C. Liu; H. Liu; H. B. Liu; H. M. Liu; H. W. Liu; J. P. Liu; K. Liu; K. Y Liu; Q. Liu; S. B. Liu; X. Liu; X. H. Liu; Y. B. Liu; Y. W. Liu; Yong Liu; Z. A. Liu; Z. Q. Liu; H. Loehner; G. R. Lu; H. J. Lu; J. G. Lu; Q. W. Lu; X. R. Lu; Y. P. Lu; C. L. Luo; M. X. Luo; T. Luo; X. L. Luo; C. L. Ma; F. C. Ma; H. L. Ma; Q. M. Ma; T. Ma; X. Ma; X. Y. Ma; M. Maggiora; Q. A. Malik; H. Mao; Y. J. Mao; Z. P. Mao; J. G. Messchendorp; J. Min; R. E. Mitchell; X. H. Mo; N. Yu. Muchnoi; Y. Nefedov; Z. Ning; S. L. Olsen; Q. Ouyang; S. Pacetti; M. Pelizaeus; K. Peters; J. L. Ping; R. G. Ping; R. Poling; C. S. J. Pun; M. Qi; S. Qian; C. F. Qiao; X. S. Qin; J. F. Qiu; K. H. Rashid; G. Rong; X. D. Ruan; A. Sarantsevc; J. Schulze; M. Shao; C. P. Shen; X. Y. Shen; H. Y. Sheng; M. R. Shepherd; X. Y. Song; S. Sonoda; S. Spataro; B. Spruck; D. H. Sun; G. X. Sun; J. F. Sun; S. S. Sun; X. D. Sun; Y. J. Sun; Y. Z. Sun; Z. J. Sun; Z. T. Sun; C. J. Tang; X. Tang; X. F. Tang; H. L. Tian; D. Toth; G. S. Varner; X. Wan; B. Q. Wang; K. Wang; L. L. Wang; L. S. Wang; M. Wang; P. Wang; P. L. Wang; Q. Wang; S. G. Wang; X. L. Wang; Y. D. Wang; Y. F. Wang; Y. Q. Wang; Z. Wang; Z. G. Wang; Z. Y. Wang; D. H. Wei; Q. G. Wen; S. P. Wen; U. Wiedner; L. H. Wu; N. Wu; W. Wu; Z. Wu; Z. J. Xiao; Y. G. Xie; G. F. Xu; G. M. Xu; H. Xu; Y. Xu; Z. R. Xu; Z. Z. Xu; Z. Xue; L. Yan; W. B. Yan; Y. H. Yan; H. X. Yang; M. Yang; T. Yang; Y. Yang; Y. X. Yang; M. Ye; M. H. Ye; B. X. Yu; C. X. Yu; L. Yu; C. Z. Yuan; W. L. Yuan; Y. Yuan; A. A. Zafar; A. Zallo; Y. Zeng; B. X. Zhang; B. Y. Zhang; C. C. Zhang; D. H. Zhang; H. H. Zhang; H. Y. Zhang; J. Zhang; J. W. Zhang; J. Y. Zhang; J. Z. Zhang; L. Zhang; S. H. Zhang; T. R. Zhang; X. J. Zhang; X. Y. Zhang; Y. Zhang; Y. H. Zhang; Z. P. Zhang; Z. Y. Zhang; G. Zhao; H. S. Zhao; Jiawei Zhao; Jingwei Zhao; Lei Zhao; Ling Zhao; M. G. Zhao; Q. Zhao; S. J. Zhao; T. C. Zhao; X. H. Zhao; Y. B. Zhao; Z. G. Zhao; Z. L. Zhao; A. Zhemchugova; B. Zheng; J. P. Zheng; Y. H. Zheng; Z. P. Zheng; B. Zhong; J. Zhong; L. Zhong; L. Zhou; X. K. Zhou; X. R. Zhou; C. Zhu; K. Zhu; K. J. Zhu; S. H. Zhu; X. L. Zhu; X. W. Zhu; Y. S. Zhu; Z. A. Zhu; J. Zhuang; B. S. Zou; J. H. Zou; J. X. Zuo; P. Zweber

2011-04-27T23:59:59.000Z

150

Multiphoton ionization and ion-pair formation in molecular hydrogen  

SciTech Connect (OSTI)

We have investigated both photoionization and ion-pair formation in molecular hydrogen by using double-resonance excitation via the E,F {sup 1}{Sigma}{sub g}{sup +}, v=6 level. The energetic threshold for ion-pair formation occurs just below the H{sub 2}{sup +} X {sup 2}{Sigma}{sub g}{sup +}, v{sup +}=9 ionization. threshold. The spectrum in this region was studied by using both conventional and constant-ionic-state photoelectron spectroscopy, as well as by monitoring the H{sup {minus}} production. The decay dynamics in this region are extremely rich, because excited levels may decay by rotational and vibrational autoionization, by predissociation to neutral H + H* (n=2,3,4), by predissociation to the ion pair H{sup +} + H{sup {minus}}, and by fluorescence. In addition, the dissociative potential curve of the 2p{sigma}{sub u}3s{sigma}{sub g} {sup 1}{Sigma}{sub u}{sup +} doubly excited electronic state crosses the H{sub 2}{sup +} X {sup 2}{Sigma}{sub u}{sup +} potential curve in the same energy region, and the electronic autoionization of this state is found to significantly influence these decay processes.

Pratt, S.T.; McCormack, E.F.; Dehmer, J.L.; Dehmer, P.M.

1992-09-01T23:59:59.000Z

151

E-Print Network 3.0 - atom-photon pair laser Sample Search Results  

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

photon pair laser Search Powered by Explorit Topic List Advanced Search Sample search results for: atom-photon pair laser Page: << < 1 2 3 4 5 > >> 1 Observation of Entanglement of...

152

E-Print Network 3.0 - associative pairing enhances Sample Search...  

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

PCR output was enhanced only... was enhanced by at least one of the three preCESs. For primer pairs B and G, which have not resulted in any... . For primer pairs C, D, H, L, or I,...

153

Molecular Hydrogen Formation from Proximal Glycol Pairs on TiO2...  

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

Hydrogen Formation from Proximal Glycol Pairs on TiO2(110). Molecular Hydrogen Formation from Proximal Glycol Pairs on TiO2(110). Abstract: Understanding hydrogen formation on TiO2...

154

TEMPERATURE DEPENDENCE OF THE THRESHOLD ENERGY FOR FRENKEL PAIR PRODUCTION IN COPPER  

E-Print Network [OSTI]

FRENKEL PAIR PRODUCTION IN COPPER R. Drosd, T. Kosel, and J.FRENKEL PAIR PRODUCTION IN COPPER R. Drosd, T. Kosel and J.110) foils of high purity copper in the HVEM. At 575K loops

Drosd, jR.

2010-01-01T23:59:59.000Z

155

Possible diminution of impurity pair breaking for triplet pairing superconductivity in two-dimensional or quasi-two-dimensional, weakly localized, nearly magnetic systems  

SciTech Connect (OSTI)

We propose a conjecture according to which, as a consequence of weak localization in two-dimensional, nearly magnetic itinerant paramagnets, the pair-breaking parameter due to normal impurity scattering, in triplet pairing superconductivity, may be reduced at low enough temperature. It might then, in principle, become easier to observe triplet pairing superconductivity in dirty two-dimensional or quasi-two-dimensional metals, than in three-dimensional ones; thus some recently observed puzzling superconductive behaviors should be reexamined.

Beal-Monod, M.T.; Ebisawa, H.; Fukuyama, H.

1984-08-01T23:59:59.000Z

156

Cross sections and energy loss for lepton pair production in muon transport  

E-Print Network [OSTI]

We reevaluate electron-positron pair production from electromagnetic interactions of muons in transit through materials. Our approach, through the use of structure functions for inelastic and elastic scattering and including hadronic recoil, make the formalism useful for tau pair production at high energies. Our results for electron-positron pair production agree well with prior evaluations. Tau pair production, has a significant contribution from inelastic scattering in addition to the usual coherent scattering with the nucleus and scattering with atomic electrons.

A. Bulmahn; M. H. Reno

2008-12-30T23:59:59.000Z

157

Fluctuation Driven FirstOrder Pairing Transition of ChernSimons N.E. Bonesteel  

E-Print Network [OSTI]

­dimensional electron gas at Landau level filling factor š = 1=2 can be viewed as a `Fermi sea' of composite fermions 2 pairing for weak enough attraction and drive the pairing transition which occurs as the attraction natural to ask what effect the CS gauge field may have on BCS pairing. In this short note I introduce

Bonesteel, Nicholas E.

158

R-Axion: A New LHC Physics Signature Involving Muon Pairs  

Science Journals Connector (OSTI)

......decays into a pair of muons and leaves a displaced...Ibe M. J. High Energy Phys. (2009) 03...T. T. J. High Energy Phys. (2009) 04...Signature Involving Muon Pairs~) Hock-Seng...Signature Involving Muon Pairs 29 2. Interactions...sectors, the low energy effective theory......

Hock-Seng Goh; Masahiro Ibe

2009-04-01T23:59:59.000Z

159

Experiences with a two terminal-pair digital impedance bridge  

E-Print Network [OSTI]

This paper describes the realization of a two terminal-pair digital impedance bridge and the test measurements performed with it. The bridge, with a very simple architecture, is based on a commercial two-channel digital signal synthesizer and a synchronous detector. The bridge can perform comparisons between impedances having arbitrary phase and magnitude ratio: its balance is achieved automatically in less than a minute. $R$-$C$ comparisons with calibrated standards, at kHz frequency and 100 kohm magnitude level, give ratio errors of the order of $10^{-6}$, with potential for further improvements.

Callegaro, Luca; Kampik, Marian; Kim, Dan Bee; Ortolano, Massimo; Pourdanesh, Faranak

2014-01-01T23:59:59.000Z

160

Radiative emission of neutrino pair free of quantum electrodynamic backgrounds  

E-Print Network [OSTI]

A scheme of quantum electrodynamic (QED) background-free radiative emission of neutrino pair (RENP) is proposed in order to achieve precision determination of neutrino properties so far not accessible. The important point for the background rejection is the fact that the dispersion relation between wave vector along propagating direction in wave guide (and in a photonic-crystal type fiber) and frequency is modified by a discretized non-vanishing effective mass. This effective mass acts as a cutoff of allowed frequencies, and one may select the RENP photon energy region free of all macro-coherently amplified QED processes by choosing the cutoff larger than the mass of neutrinos.

Yoshimura, M; Tanaka, M

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Holographic Accelerated Heavy Quark-Anti-Quark Pair  

E-Print Network [OSTI]

The problem of a heavy quark-anti-quark pair which have constant eternal acceleration in opposite directions in the vacuum of deconfined maximally supersymmetric Yang-Mills theory is studied both in perturbation theory and at strong coupling using AdS/CFT. Perturbation theory is summed to obtain what is conjectured to be an exact result. It is shown to agree with a particular prescription for computing the disc amplitude in the string theory dual and it yields a value $s=\\sqrt{\\lambda}$ for the entanglement entropy of the quark and anti-quark.

Veronika E. Hubeny; Gordon W. Semenoff

2014-10-05T23:59:59.000Z

162

Radiative emission of neutrino pair free of quantum electrodynamic backgrounds  

E-Print Network [OSTI]

A scheme of quantum electrodynamic (QED) background-free radiative emission of neutrino pair (RENP) is proposed in order to achieve precision determination of neutrino properties so far not accessible. The important point for the background rejection is the fact that the dispersion relation between wave vector along propagating direction in wave guide (and in a photonic-crystal type fiber) and frequency is modified by a discretized non-vanishing effective mass. This effective mass acts as a cutoff of allowed frequencies, and one may select the RENP photon energy region free of all macro-coherently amplified QED processes by choosing the cutoff larger than the mass of neutrinos.

M. Yoshimura; N. Sasao; M. Tanaka

2015-01-23T23:59:59.000Z

163

Metal Absorption Systems in Spectra of Pairs of QSOs  

E-Print Network [OSTI]

We present the first large sample of absorption systems in paired QSOs consisting of 691 absorption systems in the spectra of 310 QSOs including 170 pairings. All these absorption systems have metal lines, usually C IV or Mg II. We see 17 cases of absorption in one line-of-sight within 200 km/s (1 Mpc) of absorption in the paired line-of-sight with the probability at least approx 50% at 100kpc, declining rapidly to 23% at 100 - 200 kpc. We detect clustering on 0.5Mpc scales and see a hint of the "fingers of God" redshift-space distortion. The distribution matches absorbers arising in galaxies at z=2 with a normal correlation function and systematic infall velocities but unusually low random pair-wise velocity differences. Absorption in gas flowing out from galaxies at a mean velocity of 250 km/s would produce vastly more elongation than we see. The UV absorption from fast winds that Adelberger et al. 2005 see in spectra of LBGs is not representative of the absorption that we see. Either the winds are confined to LBGs, or they can not extend to 40 kpc with large velocities, while continuing to make UV absorption we see, implying most metals were in place in the IGM long before z=2. Separately, when we examine the absorption seen when a sight line passes a second QSO, we see 19 absorbers within 400 km/s of the partner QSO. The probability of seeing absorption is approximately constant for impact parameters 0.1 - 1.5 Mpc. Perhaps we do not see a rapid rise in the probability at small impact parameters because the UV from QSOs destroys some absorbers near to the QSOs. The 3D distribution of 64 absorbers around 313 QSOs is to first order isotropic, with just a hint of the anisotropy expected if the QSO UV emission is beamed, or alternatively QSOs might emit UV isotropically but for a surprisingly short time of only 0.3Myr.

David Tytler; Mark Gleed; Carl Melis; Angela Chapman; David Kirkman; Dan Lubin; Pascal Paschos; Tridivesh Jena; Arlin P. S. Crotts

2007-11-15T23:59:59.000Z

164

Measurement of $\\psi(2S)$ decays to baryon pairs  

E-Print Network [OSTI]

A sample of 3.95M $\\psi(2S)$ decays registered in the BES detector are used to study final states containing pairs of octet and decuplet baryons. We report branching fractions for $\\psi(2S)\\to p\\bar{p}$, $\\Lambda\\bar{\\Lambda}$, $\\Sigma^0\\bar{\\Sigma}{}^0$, $\\Xi^-\\bar{\\Xi}{}^+$, $\\Delta^{++}\\bar{\\Delta}{}^{--}$, $\\Sigma^+(1385)\\bar{\\Sigma}{}^-(1385 )$, $\\Xi^0(1530)\\bar{\\Xi}{}^0(1530)$, and $\\Omega^-\\bar{\\Omega}{}^+$. These results are compared to expectations based on the SU(3)-flavor symmetry, factorization, and perturbative QCD.

Bai, J Z; Bian, J G; Blum, I K; Chen, A D; Chen, G P; Chen, H F; Chen, H S; Chen, J; Chen Jia Chao; Chen, X D; Chen, Y; Chen, Y B; Cheng Bao Sen; Choi, J B; Cui, X Z; Ding, H L; Dong, L Y; Du, Z Z; Dunwoodie, W M; Gao, C S; Gao, M L; Gao, S Q; Gratton, P; Gu, J H; Gu, S D; Gu, W X; Guo, Y N; Guo, Z J; Han, S W; Han, Y; Harris, F A; He, J; He, J T; He, K L; He, M; Heng, Y K; Hitlin, D G; Hu, G Y; Hu, H M; Hu, J L; Hu, Q H; Hu, T; Huang, G S; Huang, X P; Huang, Y Z; Izen, J M; Jiang, C H; Jin, Y; Jones, B D; Ju, X; Kang, J S; Ke, Z J; Kelsey, M H; Kim, B K; Kim, H J; Kim, S K; Kim, T Y; Kong, D; Lai, Y F; Lang, P F; Lankford, A J; Li, C G; Li, D; Li, H B; Li, J; Li, J C; Li, P Q; Li, W; Li, W G; Li, X H; Li Xiao Nan; Li Xue Qian; Li Zhong Chao; Liu, B; Liu, F; Liu Feng; Liu, H M; Liu, J; Liu, J P; Liu, R G; Liu, Y; Liu, Z X; Lou, X C; Lowery, B; Lu, G R; Lu, F; Lu, J G; Luo, X L; Ma, E C; Ma, J M; Malchow, R L; Mao, H S; Mao, Z P; Meng, X C; Mo, X H; Nie, J; Olsen, S L; Oyang, J Y T; Paluselli, D; Pan, L J; Panetta, J; Park, H; Porter, F; Qi, N D; Qi, X R; Qian, C D; Qiu, J F; Qu, Y H; Que, Y K; Rong, G; Schernau, M; Shao, Y Y; Shen, B W; Shen, D L; Shen, H; Shen, H Y; Shen, X Y; Shi, F; Shi, H Z; Song, X F; Standifird, J; Suh, J Y; Sun, H S; Sun, L F; Sun, Y Z; Tang, S Q; Toki, W; Tong, G L; Varner, G S; Wang, F; Wang, L; Wang, L S; Wang, L Z; Wang, P; Wang, P L; Wang, S M; Wang, Y Y; Wang, Z Y; Weaver, M; Wei, C L; Wu, N; Wu, Y G; Xi, D M; Xia, X M; Xie, Y; Xie, Y H; Xu, G F; Xue, S T; Yan, J; Yan, W G; Yang, C M; Yang, C Y; Yang, H X; Yang, W; Yang, X F; Ye, M H; Ye Shu Wei; Ye, Y X; Yu, C S; Yu, C X; Yu, G W; Yu Yu Hei; Yu, Z Q; Yuan, C Z; Yuan, Y; Zhang Bing Yun; Zhang, C; Zhang, C C; Zhang, D H; De Hong Zhang; Zhang, H L; Zhang, J; Zhang, J W; Zhang, L; Zhang Lei; Zhang, L S; Zhang, P; Zhang, Q J; Zhang, S Q; Zhang, X Y; Zhang, Y Y; Zhao, D X; Zhao, H W; Jia Wei Zhao; Zhao Jia Wei; Zhao, M; Zhao Wei Ren; Zhao, Z G; Zheng Jian Ping; Zheng Lin Sheng; Zheng Zhi Peng; Zhou, B Q; Zhou, L; Zhu, K J; Zhu, Q M; Zhu, Y C; Zhu, Y S; Zhu, Z A; Zhuang, B A

2001-01-01T23:59:59.000Z

165

Polarization Correlations in Pair Production from Charged and Neutral Strings  

E-Print Network [OSTI]

Polarization correlations of $e^{+}e^{-}$ pair productions from charged and neutral Nambu strings are investigated, via photon and graviton emissions, respectively and explicit expressions for their corresponding probabilities are derived and found to be \\textit{speed} dependent. The strings are taken to be circularly oscillating closed strings, as perhaps the simplest solution of the Nambu action. In the extreme relativistic case, these probabilities coincide, but, in general, are different, and such inquiries, in principle, indicate whether the string is charged or uncharged. It is remarkable that these dynamical relativistic quantum field theory calculations lead to a clear violation of Local Hidden Variables theories.

E. B. Manoukian; N. Yongram

2005-04-25T23:59:59.000Z

166

Table  

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

Muons Muons in B-100 Bone-equivalent plastic Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.52740 1.450 85.9 0.05268 3.7365 0.1252 3.0420 3.4528 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.435 7.435 7.443 × 10 -1 14.0 MeV 5.616 × 10 1 5.803 5.803 1.360 × 10 0 20.0 MeV 6.802 × 10 1 4.535 4.535 2.543 × 10 0 30.0 MeV 8.509 × 10 1 3.521 3.521 5.080 × 10 0 40.0 MeV 1.003 × 10 2 3.008 3.008 8.173 × 10 0 80.0 MeV 1.527 × 10 2 2.256 2.256 2.401 × 10 1 100. MeV 1.764 × 10 2 2.115 2.115 3.319 × 10 1 140. MeV 2.218 × 10 2 1.971 1.971 5.287 × 10 1 200. MeV 2.868 × 10 2 1.889 1.889 8.408 × 10 1 300. MeV 3.917 × 10 2 1.859 0.000 1.859 1.376 × 10 2 314. MeV 4.065 × 10 2 1.859 0.000 1.859 Minimum ionization 400. MeV 4.945 × 10 2 1.866 0.000 1.866 1.913 × 10 2 800. MeV 8.995 × 10 2 1.940 0.000 0.000 1.940 4.016 × 10 2 1.00 GeV 1.101 × 10 3 1.973 0.000 0.000 1.974 5.037 × 10 2 1.40

167

Table  

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

Muons Muons in Sodium monoxide Na 2 O Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.48404 2.270 148.8 0.07501 3.6943 0.1652 2.9793 4.1892 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.330 6.330 8.793 × 10 -1 14.0 MeV 5.616 × 10 1 4.955 4.956 1.601 × 10 0 20.0 MeV 6.802 × 10 1 3.883 3.884 2.984 × 10 0 30.0 MeV 8.509 × 10 1 3.024 3.024 5.943 × 10 0 40.0 MeV 1.003 × 10 2 2.588 2.588 9.541 × 10 0 80.0 MeV 1.527 × 10 2 1.954 1.954 2.789 × 10 1 100. MeV 1.764 × 10 2 1.840 1.840 3.846 × 10 1 140. MeV 2.218 × 10 2 1.725 1.725 6.102 × 10 1 200. MeV 2.868 × 10 2 1.663 1.664 9.656 × 10 1 283. MeV 3.738 × 10 2 1.646 0.000 1.647 Minimum ionization 300. MeV 3.917 × 10 2 1.647 0.000 1.647 1.571 × 10 2 400. MeV 4.945 × 10 2 1.659 0.000 1.660 2.177 × 10 2 800. MeV 8.995 × 10 2 1.738 0.000 0.000 1.738 4.531 × 10 2 1.00 GeV 1.101 × 10 3 1.771 0.000 0.000 1.772 5.670 × 10 2 1.40 GeV 1.502

168

Table  

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

Muons Muons in Tissue-equivalent gas (Propane based) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.55027 1.826 × 10 -3 59.5 0.09802 3.5159 1.5139 3.9916 9.3529 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 8.132 8.132 6.782 × 10 -1 14.0 MeV 5.616 × 10 1 6.337 6.337 1.241 × 10 0 20.0 MeV 6.802 × 10 1 4.943 4.944 2.326 × 10 0 30.0 MeV 8.509 × 10 1 3.831 3.831 4.656 × 10 0 40.0 MeV 1.003 × 10 2 3.269 3.269 7.500 × 10 0 80.0 MeV 1.527 × 10 2 2.450 2.450 2.209 × 10 1 100. MeV 1.764 × 10 2 2.303 2.303 3.053 × 10 1 140. MeV 2.218 × 10 2 2.158 2.158 4.855 × 10 1 200. MeV 2.868 × 10 2 2.084 2.084 7.695 × 10 1 263. MeV 3.527 × 10 2 2.068 0.000 2.069 Minimum ionization 300. MeV 3.917 × 10 2 2.071 0.000 2.072 1.252 × 10 2 400. MeV 4.945 × 10 2 2.097 0.000 2.097 1.732 × 10 2 800. MeV 8.995 × 10 2 2.232 0.000 0.000 2.232 3.580 × 10 2 1.00 GeV 1.101 × 10 3 2.289 0.000 0.000 2.290

169

Table  

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

Muons Muons in Lead oxide (PbO) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.40323 9.530 766.7 0.19645 2.7299 0.0356 3.5456 6.2162 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 4.046 4.046 1.411 × 10 0 14.0 MeV 5.616 × 10 1 3.207 3.207 2.532 × 10 0 20.0 MeV 6.802 × 10 1 2.542 2.542 4.656 × 10 0 30.0 MeV 8.509 × 10 1 2.003 2.003 9.146 × 10 0 40.0 MeV 1.003 × 10 2 1.727 1.727 1.455 × 10 1 80.0 MeV 1.527 × 10 2 1.327 1.327 4.176 × 10 1 100. MeV 1.764 × 10 2 1.256 1.256 5.729 × 10 1 140. MeV 2.218 × 10 2 1.188 1.189 9.017 × 10 1 200. MeV 2.868 × 10 2 1.158 1.158 1.415 × 10 2 236. MeV 3.250 × 10 2 1.155 0.000 1.155 Minimum ionization 300. MeV 3.917 × 10 2 1.161 0.000 0.000 1.161 2.279 × 10 2 400. MeV 4.945 × 10 2 1.181 0.000 0.000 1.181 3.133 × 10 2 800. MeV 8.995 × 10 2 1.266 0.001 0.000 1.267 6.398 × 10 2 1.00 GeV 1.101 × 10 3 1.299 0.001 0.000 1.301 7.955 × 10 2 1.40

170

Table  

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

Muons Muons in Liquid argon (Ar) Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 18 (Ar) 39.948 (1) 1.396 188.0 0.19559 3.0000 0.2000 3.0000 5.2146 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 5.687 5.687 9.833 × 10 -1 14.0 MeV 5.616 × 10 1 4.461 4.461 1.786 × 10 0 20.0 MeV 6.802 × 10 1 3.502 3.502 3.321 × 10 0 30.0 MeV 8.509 × 10 1 2.731 2.731 6.598 × 10 0 40.0 MeV 1.003 × 10 2 2.340 2.340 1.058 × 10 1 80.0 MeV 1.527 × 10 2 1.771 1.771 3.084 × 10 1 100. MeV 1.764 × 10 2 1.669 1.670 4.250 × 10 1 140. MeV 2.218 × 10 2 1.570 1.570 6.732 × 10 1 200. MeV 2.868 × 10 2 1.518 1.519 1.063 × 10 2 266. MeV 3.567 × 10 2 1.508 0.000 1.508 Minimum ionization 300. MeV 3.917 × 10 2 1.509 0.000 1.510 1.725 × 10 2 400. MeV 4.945 × 10 2 1.526 0.000 0.000 1.526 2.385 × 10 2 800. MeV 8.995 × 10 2 1.610 0.000 0.000 1.610 4.934 × 10 2 1.00 GeV 1.101 × 10 3 1.644 0.000 0.000 1.645 6.163

171

Table  

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

Muons Muons in Freon-13 (CF 3 Cl) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.47966 0.950 126.6 0.07238 3.5551 0.3659 3.2337 4.7483 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.416 6.416 8.659 × 10 -1 14.0 MeV 5.616 × 10 1 5.019 5.019 1.578 × 10 0 20.0 MeV 6.802 × 10 1 3.930 3.930 2.945 × 10 0 30.0 MeV 8.509 × 10 1 3.057 3.057 5.870 × 10 0 40.0 MeV 1.003 × 10 2 2.615 2.615 9.430 × 10 0 80.0 MeV 1.527 × 10 2 1.971 1.971 2.760 × 10 1 100. MeV 1.764 × 10 2 1.857 1.857 3.809 × 10 1 140. MeV 2.218 × 10 2 1.745 1.745 6.041 × 10 1 200. MeV 2.868 × 10 2 1.685 1.685 9.551 × 10 1 283. MeV 3.738 × 10 2 1.668 0.000 1.668 Minimum ionization 300. MeV 3.917 × 10 2 1.668 0.000 1.668 1.553 × 10 2 400. MeV 4.945 × 10 2 1.681 0.000 1.681 2.151 × 10 2 800. MeV 8.995 × 10 2 1.762 0.000 0.000 1.763 4.473 × 10 2 1.00 GeV 1.101 × 10 3 1.796 0.000 0.000 1.797 5.596 × 10 2 1.40 GeV 1.502

172

Table  

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

Muons Muons in Lutetium silicon oxide [Lu 2 SiO 5 ] Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.42793 7.400 472.0 0.20623 3.0000 0.2732 3.0000 5.4394 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 4.679 4.679 1.209 × 10 0 14.0 MeV 5.616 × 10 1 3.692 3.693 2.181 × 10 0 20.0 MeV 6.802 × 10 1 2.916 2.916 4.029 × 10 0 30.0 MeV 8.509 × 10 1 2.287 2.287 7.953 × 10 0 40.0 MeV 1.003 × 10 2 1.968 1.968 1.270 × 10 1 80.0 MeV 1.527 × 10 2 1.503 1.503 3.666 × 10 1 100. MeV 1.764 × 10 2 1.421 1.422 5.038 × 10 1 140. MeV 2.218 × 10 2 1.344 1.344 7.944 × 10 1 200. MeV 2.868 × 10 2 1.308 1.308 1.248 × 10 2 242. MeV 3.316 × 10 2 1.304 1.304 Minimum ionization 300. MeV 3.917 × 10 2 1.309 0.000 0.000 1.309 2.014 × 10 2 400. MeV 4.945 × 10 2 1.329 0.000 0.000 1.329 2.773 × 10 2 800. MeV 8.995 × 10 2 1.415 0.001 0.000 1.416 5.684 × 10 2 1.00 GeV 1.101 × 10 3 1.449 0.001 0.000 1.450 7.080

173

Table  

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

Muons Muons in Boron oxide (B 2 O 3 ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.49839 1.812 99.6 0.11548 3.3832 0.1843 2.7379 3.6027 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.889 6.889 8.045 × 10 -1 14.0 MeV 5.616 × 10 1 5.381 5.381 1.468 × 10 0 20.0 MeV 6.802 × 10 1 4.208 4.208 2.744 × 10 0 30.0 MeV 8.509 × 10 1 3.269 3.269 5.477 × 10 0 40.0 MeV 1.003 × 10 2 2.794 2.794 8.807 × 10 0 80.0 MeV 1.527 × 10 2 2.102 2.103 2.583 × 10 1 100. MeV 1.764 × 10 2 1.975 1.975 3.567 × 10 1 140. MeV 2.218 × 10 2 1.843 1.843 5.674 × 10 1 200. MeV 2.868 × 10 2 1.768 1.768 9.010 × 10 1 300. MeV 3.917 × 10 2 1.742 0.000 1.742 1.472 × 10 2 307. MeV 3.990 × 10 2 1.742 0.000 1.742 Minimum ionization 400. MeV 4.945 × 10 2 1.750 0.000 1.750 2.045 × 10 2 800. MeV 8.995 × 10 2 1.822 0.000 0.000 1.823 4.285 × 10 2 1.00 GeV 1.101 × 10 3 1.854 0.000 0.000 1.855 5.373 × 10 2 1.40 GeV 1.502

174

Table  

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

Muons Muons in Liquid H-note density shift (H 2 ) Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 1 (H) 1.00794 (7) 7.080 × 10 -2 21.8 0.32969 3.0000 0.1641 1.9641 2.6783 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 16.508 16.508 3.316 × 10 -1 14.0 MeV 5.616 × 10 1 12.812 12.812 6.097 × 10 -1 20.0 MeV 6.802 × 10 1 9.956 9.956 1.147 × 10 0 30.0 MeV 8.509 × 10 1 7.684 7.684 2.307 × 10 0 40.0 MeV 1.003 × 10 2 6.539 6.539 3.727 × 10 0 80.0 MeV 1.527 × 10 2 4.870 4.870 1.105 × 10 1 100. MeV 1.764 × 10 2 4.550 4.550 1.531 × 10 1 140. MeV 2.218 × 10 2 4.217 4.217 2.448 × 10 1 200. MeV 2.868 × 10 2 4.018 0.000 4.018 3.912 × 10 1 300. MeV 3.917 × 10 2 3.926 0.000 3.926 6.438 × 10 1 356. MeV 4.497 × 10 2 3.919 0.000 3.919 Minimum ionization 400. MeV 4.945 × 10 2 3.922 0.000 3.922 8.988 × 10 1 800. MeV 8.995 × 10 2 4.029 0.000 4.030 1.906 × 10 2 1.00 GeV 1.101 × 10 3 4.084 0.001

175

Table  

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

Muons Muons in Cortical bone (ICRP) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.52130 1.850 106.4 0.06198 3.5919 0.1161 3.0919 3.6488 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.142 7.142 7.765 × 10 -1 14.0 MeV 5.616 × 10 1 5.581 5.581 1.417 × 10 0 20.0 MeV 6.802 × 10 1 4.366 4.366 2.646 × 10 0 30.0 MeV 8.509 × 10 1 3.393 3.393 5.281 × 10 0 40.0 MeV 1.003 × 10 2 2.900 2.901 8.489 × 10 0 80.0 MeV 1.527 × 10 2 2.179 2.179 2.489 × 10 1 100. MeV 1.764 × 10 2 2.044 2.044 3.440 × 10 1 140. MeV 2.218 × 10 2 1.907 1.907 5.475 × 10 1 200. MeV 2.868 × 10 2 1.830 1.830 8.700 × 10 1 300. MeV 3.917 × 10 2 1.803 0.000 1.803 1.422 × 10 2 303. MeV 3.950 × 10 2 1.803 0.000 1.803 Minimum ionization 400. MeV 4.945 × 10 2 1.812 0.000 1.812 1.976 × 10 2 800. MeV 8.995 × 10 2 1.888 0.000 0.000 1.889 4.138 × 10 2 1.00 GeV 1.101 × 10 3 1.922 0.000 0.000 1.923 5.187 × 10 2 1.40 GeV 1.502

176

Table  

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

Muons Muons in Freon-13B1 (CF 3 Br) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.45665 1.500 210.5 0.03925 3.7194 0.3522 3.7554 5.3555 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 5.678 5.678 9.844 × 10 -1 14.0 MeV 5.616 × 10 1 4.454 4.454 1.788 × 10 0 20.0 MeV 6.802 × 10 1 3.498 3.498 3.325 × 10 0 30.0 MeV 8.509 × 10 1 2.729 2.729 6.606 × 10 0 40.0 MeV 1.003 × 10 2 2.339 2.339 1.059 × 10 1 80.0 MeV 1.527 × 10 2 1.771 1.771 3.086 × 10 1 100. MeV 1.764 × 10 2 1.671 1.671 4.251 × 10 1 140. MeV 2.218 × 10 2 1.574 1.574 6.729 × 10 1 200. MeV 2.868 × 10 2 1.524 1.524 1.062 × 10 2 266. MeV 3.567 × 10 2 1.513 0.000 1.513 Minimum ionization 300. MeV 3.917 × 10 2 1.515 0.000 1.515 1.721 × 10 2 400. MeV 4.945 × 10 2 1.531 0.000 0.000 1.532 2.378 × 10 2 800. MeV 8.995 × 10 2 1.616 0.000 0.000 1.616 4.919 × 10 2 1.00 GeV 1.101 × 10 3 1.650 0.001 0.000 1.651 6.142 × 10 2 1.40 GeV

177

Table  

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

Muons Muons in Sodium carbonate (Na 2 CO 3 ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.49062 2.532 125.0 0.08715 3.5638 0.1287 2.8591 3.7178 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.575 6.575 8.449 × 10 -1 14.0 MeV 5.616 × 10 1 5.142 5.142 1.540 × 10 0 20.0 MeV 6.802 × 10 1 4.026 4.026 2.874 × 10 0 30.0 MeV 8.509 × 10 1 3.131 3.131 5.729 × 10 0 40.0 MeV 1.003 × 10 2 2.679 2.679 9.204 × 10 0 80.0 MeV 1.527 × 10 2 2.017 2.017 2.695 × 10 1 100. MeV 1.764 × 10 2 1.895 1.895 3.721 × 10 1 140. MeV 2.218 × 10 2 1.771 1.772 5.914 × 10 1 200. MeV 2.868 × 10 2 1.703 1.703 9.381 × 10 1 298. MeV 3.894 × 10 2 1.681 0.000 1.681 Minimum ionization 300. MeV 3.917 × 10 2 1.681 0.000 1.681 1.531 × 10 2 400. MeV 4.945 × 10 2 1.690 0.000 1.691 2.125 × 10 2 800. MeV 8.995 × 10 2 1.764 0.000 0.000 1.764 4.440 × 10 2 1.00 GeV 1.101 × 10 3 1.796 0.000 0.000 1.797 5.563 × 10 2 1.40

178

Table  

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

Muons Muons in Tungsten hexafluoride (WF 6 ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.42976 2.400 354.4 0.03658 3.5134 0.3020 4.2602 5.9881 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 4.928 4.928 1.143 × 10 0 14.0 MeV 5.616 × 10 1 3.880 3.880 2.067 × 10 0 20.0 MeV 6.802 × 10 1 3.057 3.057 3.828 × 10 0 30.0 MeV 8.509 × 10 1 2.393 2.393 7.574 × 10 0 40.0 MeV 1.003 × 10 2 2.056 2.056 1.211 × 10 1 80.0 MeV 1.527 × 10 2 1.565 1.565 3.509 × 10 1 100. MeV 1.764 × 10 2 1.479 1.479 4.827 × 10 1 140. MeV 2.218 × 10 2 1.396 1.396 7.623 × 10 1 200. MeV 2.868 × 10 2 1.353 1.353 1.200 × 10 2 253. MeV 3.431 × 10 2 1.346 0.000 1.346 Minimum ionization 300. MeV 3.917 × 10 2 1.349 0.000 0.000 1.349 1.942 × 10 2 400. MeV 4.945 × 10 2 1.367 0.000 0.000 1.367 2.679 × 10 2 800. MeV 8.995 × 10 2 1.451 0.001 0.000 1.452 5.516 × 10 2 1.00 GeV 1.101 × 10 3 1.485 0.001 0.000 1.486 6.877

179

Table  

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

Muons Muons in Standard rock Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.50000 2.650 136.4 0.08301 3.4120 0.0492 3.0549 3.7738 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.619 6.619 8.400 × 10 -1 14.0 MeV 5.616 × 10 1 5.180 5.180 1.530 × 10 0 20.0 MeV 6.802 × 10 1 4.057 4.057 2.854 × 10 0 30.0 MeV 8.509 × 10 1 3.157 3.157 5.687 × 10 0 40.0 MeV 1.003 × 10 2 2.701 2.702 9.133 × 10 0 80.0 MeV 1.527 × 10 2 2.028 2.029 2.675 × 10 1 100. MeV 1.764 × 10 2 1.904 1.904 3.695 × 10 1 140. MeV 2.218 × 10 2 1.779 1.779 5.878 × 10 1 200. MeV 2.868 × 10 2 1.710 1.710 9.331 × 10 1 297. MeV 3.884 × 10 2 1.688 0.000 1.688 Minimum ionization 300. MeV 3.917 × 10 2 1.688 0.000 1.688 1.523 × 10 2 400. MeV 4.945 × 10 2 1.698 0.000 1.698 2.114 × 10 2 800. MeV 8.995 × 10 2 1.774 0.000 0.000 1.775 4.418 × 10 2 1.00 GeV 1.101 × 10 3 1.808 0.000 0.000 1.808 5.534 × 10 2 1.40 GeV 1.502 × 10

180

Table  

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

Muons Muons in Ceric sulfate dosimeter solution Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.55279 1.030 76.7 0.07666 3.5607 0.2363 2.8769 3.5212 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.909 7.909 6.989 × 10 -1 14.0 MeV 5.616 × 10 1 6.170 6.170 1.278 × 10 0 20.0 MeV 6.802 × 10 1 4.819 4.819 2.391 × 10 0 30.0 MeV 8.509 × 10 1 3.739 3.739 4.779 × 10 0 40.0 MeV 1.003 × 10 2 3.193 3.193 7.693 × 10 0 80.0 MeV 1.527 × 10 2 2.398 2.398 2.261 × 10 1 100. MeV 1.764 × 10 2 2.255 2.255 3.123 × 10 1 140. MeV 2.218 × 10 2 2.102 2.102 4.968 × 10 1 200. MeV 2.868 × 10 2 2.013 2.014 7.896 × 10 1 300. MeV 3.917 × 10 2 1.980 0.000 1.980 1.292 × 10 2 317. MeV 4.096 × 10 2 1.979 0.000 1.979 Minimum ionization 400. MeV 4.945 × 10 2 1.986 0.000 1.986 1.797 × 10 2 800. MeV 8.995 × 10 2 2.062 0.000 0.000 2.062 3.774 × 10 2 1.00 GeV 1.101 × 10 3 2.096 0.000 0.000 2.097 4.735 × 10

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
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181

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

Muons Muons in Silicon Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 14 (Si) 28.0855 (3) 2.329 173.0 0.14921 3.2546 0.2015 2.8716 4.4355 0.14 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.363 6.363 8.779 × 10 -1 14.0 MeV 5.616 × 10 1 4.987 4.987 1.595 × 10 0 20.0 MeV 6.802 × 10 1 3.912 3.912 2.969 × 10 0 30.0 MeV 8.509 × 10 1 3.047 3.047 5.905 × 10 0 40.0 MeV 1.003 × 10 2 2.608 2.608 9.476 × 10 0 80.0 MeV 1.527 × 10 2 1.965 1.965 2.770 × 10 1 100. MeV 1.764 × 10 2 1.849 1.849 3.822 × 10 1 140. MeV 2.218 × 10 2 1.737 1.737 6.064 × 10 1 200. MeV 2.868 × 10 2 1.678 1.678 9.590 × 10 1 273. MeV 3.633 × 10 2 1.664 0.000 1.664 Minimum ionization 300. MeV 3.917 × 10 2 1.665 0.000 1.666 1.559 × 10 2 400. MeV 4.945 × 10 2 1.681 0.000 1.681 2.157 × 10 2 800. MeV 8.995 × 10 2 1.767 0.000 0.000 1.768 4.475 × 10 2 1.00 GeV 1.101 × 10 3 1.803 0.000 0.000 1.804 5.595 × 10 2 1.40 GeV

182

muonloss_285.dvi  

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

Muons Muons in Liquid oxygen (O 2 ) Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 8 (O) 15.9994 (3) 1.141 95.0 0.52231 3.0000 0.2868 2.0000 3.9471 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.951 6.951 7.977 × 10 -1 14.0 MeV 5.616 × 10 1 5.429 5.430 1.456 × 10 0 20.0 MeV 6.802 × 10 1 4.246 4.246 2.720 × 10 0 30.0 MeV 8.509 × 10 1 3.298 3.298 5.429 × 10 0 40.0 MeV 1.003 × 10 2 2.818 2.819 8.731 × 10 0 80.0 MeV 1.527 × 10 2 2.120 2.120 2.561 × 10 1 100. MeV 1.764 × 10 2 1.995 1.995 3.536 × 10 1 140. MeV 2.218 × 10 2 1.873 1.873 5.615 × 10 1 200. MeV 2.868 × 10 2 1.807 1.807 8.888 × 10 1 287. MeV 3.779 × 10 2 1.788 0.000 1.788 Minimum ionization 300. MeV 3.917 × 10 2 1.788 0.000 1.789 1.447 × 10 2 400. MeV 4.945 × 10 2 1.801 0.000 1.801 2.004 × 10 2 800. MeV 8.995 × 10 2 1.879 0.000 0.000 1.880 4.177 × 10 2 1.00 GeV 1.101 × 10 3 1.912 0.000 0.000 1.912 5.232 × 10 2 1.40

183

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

Muons Muons in Polyethylene terephthalate (Mylar) (C 10 H 8 O 4 ) n Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.52037 1.400 78.7 0.12679 3.3076 0.1562 2.6507 3.3262 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.420 7.420 7.451 × 10 -1 14.0 MeV 5.616 × 10 1 5.789 5.789 1.362 × 10 0 20.0 MeV 6.802 × 10 1 4.522 4.522 2.548 × 10 0 30.0 MeV 8.509 × 10 1 3.509 3.509 5.093 × 10 0 40.0 MeV 1.003 × 10 2 2.997 2.997 8.197 × 10 0 80.0 MeV 1.527 × 10 2 2.250 2.250 2.409 × 10 1 100. MeV 1.764 × 10 2 2.108 2.108 3.329 × 10 1 140. MeV 2.218 × 10 2 1.963 1.964 5.305 × 10 1 200. MeV 2.868 × 10 2 1.880 1.880 8.440 × 10 1 300. MeV 3.917 × 10 2 1.849 0.000 1.849 1.382 × 10 2 317. MeV 4.096 × 10 2 1.848 0.000 1.849 Minimum ionization 400. MeV 4.945 × 10 2 1.855 0.000 1.855 1.922 × 10 2 800. MeV 8.995 × 10 2 1.926 0.000 0.000 1.926 4.039 × 10 2 1.00 GeV 1.101 × 10 3 1.958 0.000 0.000 1.959

184

Table  

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

Muons Muons in Dichlorodiethyl ether C 4 Cl 2 H 8 O Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.51744 1.220 103.3 0.06799 3.5250 0.1773 3.1586 4.0135 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.117 7.117 7.789 × 10 -1 14.0 MeV 5.616 × 10 1 5.561 5.561 1.421 × 10 0 20.0 MeV 6.802 × 10 1 4.349 4.349 2.655 × 10 0 30.0 MeV 8.509 × 10 1 3.380 3.380 5.300 × 10 0 40.0 MeV 1.003 × 10 2 2.889 2.889 8.521 × 10 0 80.0 MeV 1.527 × 10 2 2.174 2.174 2.499 × 10 1 100. MeV 1.764 × 10 2 2.042 2.042 3.450 × 10 1 140. MeV 2.218 × 10 2 1.907 1.907 5.486 × 10 1 200. MeV 2.868 × 10 2 1.832 1.832 8.708 × 10 1 298. MeV 3.894 × 10 2 1.807 0.000 1.807 Minimum ionization 300. MeV 3.917 × 10 2 1.807 0.000 1.807 1.422 × 10 2 400. MeV 4.945 × 10 2 1.817 0.000 1.817 1.974 × 10 2 800. MeV 8.995 × 10 2 1.895 0.000 0.000 1.896 4.129 × 10 2 1.00 GeV 1.101 × 10 3 1.930 0.000 0.000 1.931 5.174 × 10

185

Table  

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

Muons Muons in Lead Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 82 (Pb) 207.2 (1) 11.350 823.0 0.09359 3.1608 0.3776 3.8073 6.2018 0.14 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 3.823 3.823 1.524 × 10 0 14.0 MeV 5.616 × 10 1 3.054 3.054 2.705 × 10 0 20.0 MeV 6.802 × 10 1 2.436 2.436 4.927 × 10 0 30.0 MeV 8.509 × 10 1 1.928 1.928 9.600 × 10 0 40.0 MeV 1.003 × 10 2 1.666 1.666 1.521 × 10 1 80.0 MeV 1.527 × 10 2 1.283 1.283 4.338 × 10 1 100. MeV 1.764 × 10 2 1.215 1.215 5.943 × 10 1 140. MeV 2.218 × 10 2 1.151 1.152 9.339 × 10 1 200. MeV 2.868 × 10 2 1.124 1.124 1.463 × 10 2 226. MeV 3.145 × 10 2 1.122 0.000 1.123 Minimum ionization 300. MeV 3.917 × 10 2 1.130 0.000 0.000 1.131 2.352 × 10 2 400. MeV 4.945 × 10 2 1.151 0.000 0.000 1.152 3.228 × 10 2 800. MeV 8.995 × 10 2 1.237 0.001 0.000 1.238 6.572 × 10 2 1.00 GeV 1.101 × 10 3 1.270 0.001 0.000 1.272 8.165 × 10 2 1.40

186

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

Muons Muons in Sodium iodide (NaI) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.42697 3.667 452.0 0.12516 3.0398 0.1203 3.5920 6.0572 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 4.703 4.703 1.202 × 10 0 14.0 MeV 5.616 × 10 1 3.710 3.710 2.169 × 10 0 20.0 MeV 6.802 × 10 1 2.928 2.928 4.009 × 10 0 30.0 MeV 8.509 × 10 1 2.297 2.297 7.917 × 10 0 40.0 MeV 1.003 × 10 2 1.975 1.975 1.264 × 10 1 80.0 MeV 1.527 × 10 2 1.509 1.509 3.652 × 10 1 100. MeV 1.764 × 10 2 1.427 1.427 5.019 × 10 1 140. MeV 2.218 × 10 2 1.347 1.348 7.916 × 10 1 200. MeV 2.868 × 10 2 1.310 1.310 1.245 × 10 2 243. MeV 3.325 × 10 2 1.305 1.305 Minimum ionization 300. MeV 3.917 × 10 2 1.310 0.000 0.000 1.310 2.010 × 10 2 400. MeV 4.945 × 10 2 1.329 0.000 0.000 1.330 2.768 × 10 2 800. MeV 8.995 × 10 2 1.417 0.001 0.000 1.418 5.677 × 10 2 1.00 GeV 1.101 × 10 3 1.452 0.001 0.000 1.453 7.070 × 10 2 1.40 GeV

187

Table  

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

Muons Muons in Polyvinyl alcohol (C 2 H3-O-H) n Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.54480 1.300 69.7 0.11178 3.3893 0.1401 2.6315 3.1115 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.891 7.891 6.999 × 10 -1 14.0 MeV 5.616 × 10 1 6.153 6.153 1.280 × 10 0 20.0 MeV 6.802 × 10 1 4.804 4.804 2.396 × 10 0 30.0 MeV 8.509 × 10 1 3.726 3.726 4.793 × 10 0 40.0 MeV 1.003 × 10 2 3.181 3.181 7.717 × 10 0 80.0 MeV 1.527 × 10 2 2.383 2.384 2.270 × 10 1 100. MeV 1.764 × 10 2 2.231 2.232 3.140 × 10 1 140. MeV 2.218 × 10 2 2.076 2.076 5.007 × 10 1 200. MeV 2.868 × 10 2 1.986 1.986 7.974 × 10 1 300. MeV 3.917 × 10 2 1.950 0.000 1.950 1.307 × 10 2 324. MeV 4.161 × 10 2 1.949 0.000 1.949 Minimum ionization 400. MeV 4.945 × 10 2 1.955 0.000 1.955 1.820 × 10 2 800. MeV 8.995 × 10 2 2.026 0.000 0.000 2.026 3.830 × 10 2 1.00 GeV 1.101 × 10 3 2.059 0.000 0.000 2.059 4.809 × 10 2 1.40

188

Table  

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

Muons Muons in Cesium Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 55 (Cs)132.9054519 (2) 1.873 488.0 0.18233 2.8866 0.5473 3.5914 6.9135 0.14 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 4.464 4.464 1.277 × 10 0 14.0 MeV 5.616 × 10 1 3.532 3.532 2.294 × 10 0 20.0 MeV 6.802 × 10 1 2.794 2.794 4.224 × 10 0 30.0 MeV 8.509 × 10 1 2.195 2.195 8.315 × 10 0 40.0 MeV 1.003 × 10 2 1.890 1.890 1.325 × 10 1 80.0 MeV 1.527 × 10 2 1.444 1.444 3.820 × 10 1 100. MeV 1.764 × 10 2 1.366 1.366 5.248 × 10 1 140. MeV 2.218 × 10 2 1.291 1.291 8.274 × 10 1 200. MeV 2.868 × 10 2 1.257 1.257 1.300 × 10 2 236. MeV 3.250 × 10 2 1.254 1.254 Minimum ionization 300. MeV 3.917 × 10 2 1.261 0.000 0.000 1.261 2.096 × 10 2 400. MeV 4.945 × 10 2 1.284 0.000 0.000 1.285 2.882 × 10 2 800. MeV 8.995 × 10 2 1.378 0.001 0.000 1.380 5.881 × 10 2 1.00 GeV 1.101 × 10 3 1.415 0.001 0.000 1.417 7.311 × 10 2

189

Table  

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

Muons Muons in Propane (C 3 H 8 ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.58962 1.868 × 10 -3 47.1 0.09916 3.5920 1.4339 3.8011 8.7939 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 8.969 8.969 6.137 × 10 -1 14.0 MeV 5.616 × 10 1 6.982 6.982 1.125 × 10 0 20.0 MeV 6.802 × 10 1 5.441 5.441 2.109 × 10 0 30.0 MeV 8.509 × 10 1 4.212 4.213 4.228 × 10 0 40.0 MeV 1.003 × 10 2 3.592 3.592 6.815 × 10 0 80.0 MeV 1.527 × 10 2 2.688 2.688 2.010 × 10 1 100. MeV 1.764 × 10 2 2.525 2.526 2.780 × 10 1 140. MeV 2.218 × 10 2 2.365 2.365 4.424 × 10 1 200. MeV 2.868 × 10 2 2.281 2.281 7.018 × 10 1 267. MeV 3.577 × 10 2 2.262 0.000 2.263 Minimum ionization 300. MeV 3.917 × 10 2 2.265 0.000 2.265 1.143 × 10 2 400. MeV 4.945 × 10 2 2.291 0.000 2.291 1.582 × 10 2 800. MeV 8.995 × 10 2 2.434 0.000 0.000 2.435 3.275 × 10 2 1.00 GeV 1.101 × 10 3 2.495 0.000 0.000 2.496 4.086 × 10 2 1.40 GeV 1.502

190

Table  

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

Muons Muons in Polystyrene ([C 6 H 5 CHCH 2 ] n ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.53768 1.060 68.7 0.16454 3.2224 0.1647 2.5031 3.2999 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.803 7.803 7.077 × 10 -1 14.0 MeV 5.616 × 10 1 6.084 6.084 1.294 × 10 0 20.0 MeV 6.802 × 10 1 4.749 4.749 2.424 × 10 0 30.0 MeV 8.509 × 10 1 3.683 3.683 4.848 × 10 0 40.0 MeV 1.003 × 10 2 3.144 3.144 7.806 × 10 0 80.0 MeV 1.527 × 10 2 2.359 2.359 2.296 × 10 1 100. MeV 1.764 × 10 2 2.210 2.211 3.174 × 10 1 140. MeV 2.218 × 10 2 2.058 2.058 5.059 × 10 1 200. MeV 2.868 × 10 2 1.970 1.971 8.049 × 10 1 300. MeV 3.917 × 10 2 1.937 0.000 1.937 1.318 × 10 2 318. MeV 4.105 × 10 2 1.936 0.000 1.936 Minimum ionization 400. MeV 4.945 × 10 2 1.942 0.000 1.943 1.834 × 10 2 800. MeV 8.995 × 10 2 2.015 0.000 0.000 2.015 3.856 × 10 2 1.00 GeV 1.101 × 10 3 2.048 0.000 0.000 2.049 4.841 × 10 2 1.40

191

muonloss_068.dvi  

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Muons Muons in Erbium Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 68 (Er) 167.259 (3) 9.026 658.0 0.24823 2.5573 0.0658 3.4932 5.9565 0.14 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 4.125 4.125 1.396 × 10 0 14.0 MeV 5.616 × 10 1 3.277 3.277 2.494 × 10 0 20.0 MeV 6.802 × 10 1 2.601 2.601 4.571 × 10 0 30.0 MeV 8.509 × 10 1 2.048 2.048 8.959 × 10 0 40.0 MeV 1.003 × 10 2 1.764 1.764 1.425 × 10 1 80.0 MeV 1.527 × 10 2 1.349 1.349 4.097 × 10 1 100. MeV 1.764 × 10 2 1.275 1.275 5.626 × 10 1 140. MeV 2.218 × 10 2 1.205 1.205 8.866 × 10 1 200. MeV 2.868 × 10 2 1.172 1.172 1.393 × 10 2 237. MeV 3.260 × 10 2 1.168 0.000 1.169 Minimum ionization 300. MeV 3.917 × 10 2 1.173 0.000 0.000 1.174 2.248 × 10 2 400. MeV 4.945 × 10 2 1.193 0.000 0.000 1.193 3.093 × 10 2 800. MeV 8.995 × 10 2 1.276 0.001 0.000 1.277 6.329 × 10 2 1.00 GeV 1.101 × 10 3 1.309 0.001 0.000 1.311 7.874 × 10

192

Table  

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

Muons Muons in Air (dry, 1 atm) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.49919 1.205 × 10 -3 85.7 0.10914 3.3994 1.7418 4.2759 10.5961 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.039 7.039 7.862 × 10 -1 14.0 MeV 5.616 × 10 1 5.494 5.495 1.436 × 10 0 20.0 MeV 6.802 × 10 1 4.294 4.294 2.686 × 10 0 30.0 MeV 8.509 × 10 1 3.333 3.333 5.366 × 10 0 40.0 MeV 1.003 × 10 2 2.847 2.847 8.633 × 10 0 80.0 MeV 1.527 × 10 2 2.140 2.140 2.535 × 10 1 100. MeV 1.764 × 10 2 2.013 2.014 3.501 × 10 1 140. MeV 2.218 × 10 2 1.889 1.889 5.562 × 10 1 200. MeV 2.868 × 10 2 1.827 1.827 8.803 × 10 1 257. MeV 3.471 × 10 2 1.815 0.000 1.816 Minimum ionization 300. MeV 3.917 × 10 2 1.819 0.000 1.819 1.430 × 10 2 400. MeV 4.945 × 10 2 1.844 0.000 1.844 1.977 × 10 2 800. MeV 8.995 × 10 2 1.968 0.000 0.000 1.968 4.074 × 10 2 1.00 GeV 1.101 × 10 3 2.020 0.000 0.000 2.021 5.077 × 10 2 1.40 GeV 1.502

193

Table  

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

Muons Muons in Lead tungstate (PbWO 4 ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.41315 8.300 600.7 0.22758 3.0000 0.4068 3.0023 5.8528 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 4.333 4.333 1.311 × 10 0 14.0 MeV 5.616 × 10 1 3.426 3.426 2.360 × 10 0 20.0 MeV 6.802 × 10 1 2.710 2.711 4.350 × 10 0 30.0 MeV 8.509 × 10 1 2.131 2.131 8.566 × 10 0 40.0 MeV 1.003 × 10 2 1.835 1.835 1.365 × 10 1 80.0 MeV 1.527 × 10 2 1.406 1.406 3.931 × 10 1 100. MeV 1.764 × 10 2 1.331 1.331 5.397 × 10 1 140. MeV 2.218 × 10 2 1.261 1.261 8.498 × 10 1 200. MeV 2.868 × 10 2 1.231 1.231 1.333 × 10 2 227. MeV 3.154 × 10 2 1.229 1.230 Minimum ionization 300. MeV 3.917 × 10 2 1.237 0.000 0.000 1.238 2.145 × 10 2 400. MeV 4.945 × 10 2 1.260 0.000 0.000 1.260 2.946 × 10 2 800. MeV 8.995 × 10 2 1.349 0.001 0.000 1.350 6.007 × 10 2 1.00 GeV 1.101 × 10 3 1.383 0.001 0.000 1.385 7.469 × 10 2 1.40

194

Table  

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

Muons Muons in Carbon (compact) Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 6 (C) [12.0107 (8)] 2.265 78.0 0.26142 2.8697 -0.0178 2.3415 2.8680 0.12 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.116 7.116 7.772 × 10 -1 14.0 MeV 5.616 × 10 1 5.549 5.549 1.420 × 10 0 20.0 MeV 6.802 × 10 1 4.331 4.331 2.658 × 10 0 30.0 MeV 8.509 × 10 1 3.355 3.355 5.318 × 10 0 40.0 MeV 1.003 × 10 2 2.861 2.861 8.567 × 10 0 80.0 MeV 1.527 × 10 2 2.126 2.127 2.531 × 10 1 100. MeV 1.764 × 10 2 1.991 1.992 3.505 × 10 1 140. MeV 2.218 × 10 2 1.854 1.854 5.597 × 10 1 200. MeV 2.868 × 10 2 1.775 1.775 8.917 × 10 1 300. MeV 3.917 × 10 2 1.745 0.000 1.745 1.462 × 10 2 317. MeV 4.096 × 10 2 1.745 0.000 1.745 Minimum ionization 400. MeV 4.945 × 10 2 1.751 0.000 1.751 2.034 × 10 2 800. MeV 8.995 × 10 2 1.819 0.000 0.000 1.820 4.275 × 10 2 1.00 GeV 1.101 × 10 3 1.850 0.000 0.000 1.851 5.365 × 10

195

Table  

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

Muons Muons in Methanol (CH 3 OH) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.56176 0.791 67.6 0.08970 3.5477 0.2529 2.7639 3.5160 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 8.169 8.169 6.759 × 10 -1 14.0 MeV 5.616 × 10 1 6.369 6.369 1.236 × 10 0 20.0 MeV 6.802 × 10 1 4.972 4.972 2.315 × 10 0 30.0 MeV 8.509 × 10 1 3.855 3.855 4.631 × 10 0 40.0 MeV 1.003 × 10 2 3.291 3.291 7.457 × 10 0 80.0 MeV 1.527 × 10 2 2.469 2.469 2.194 × 10 1 100. MeV 1.764 × 10 2 2.321 2.322 3.032 × 10 1 140. MeV 2.218 × 10 2 2.166 2.166 4.823 × 10 1 200. MeV 2.868 × 10 2 2.074 2.074 7.664 × 10 1 300. MeV 3.917 × 10 2 2.039 0.000 2.039 1.254 × 10 2 318. MeV 4.105 × 10 2 2.038 0.000 2.039 Minimum ionization 400. MeV 4.945 × 10 2 2.045 0.000 2.045 1.744 × 10 2 800. MeV 8.995 × 10 2 2.121 0.000 0.000 2.122 3.665 × 10 2 1.00 GeV 1.101 × 10 3 2.156 0.000 0.000 2.157 4.600 × 10 2 1.40 GeV 1.502 ×

196

Table  

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

Muons Muons in Carbon (amorphous) Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 6 (C) 12.0107 (8) 2.000 78.0 0.20240 3.0036 -0.0351 2.4860 2.9925 0.10 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.117 7.117 7.771 × 10 -1 14.0 MeV 5.616 × 10 1 5.550 5.551 1.420 × 10 0 20.0 MeV 6.802 × 10 1 4.332 4.332 2.658 × 10 0 30.0 MeV 8.509 × 10 1 3.357 3.357 5.317 × 10 0 40.0 MeV 1.003 × 10 2 2.862 2.862 8.564 × 10 0 80.0 MeV 1.527 × 10 2 2.129 2.129 2.529 × 10 1 100. MeV 1.764 × 10 2 1.994 1.994 3.502 × 10 1 140. MeV 2.218 × 10 2 1.857 1.857 5.591 × 10 1 200. MeV 2.868 × 10 2 1.778 1.779 8.905 × 10 1 300. MeV 3.917 × 10 2 1.749 0.000 1.749 1.459 × 10 2 313. MeV 4.055 × 10 2 1.749 0.000 1.749 Minimum ionization 400. MeV 4.945 × 10 2 1.755 0.000 1.756 2.030 × 10 2 800. MeV 8.995 × 10 2 1.824 0.000 0.000 1.825 4.266 × 10 2 1.00 GeV 1.101 × 10 3 1.855 0.000 0.000 1.856 5.353 × 10

197

Table  

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

Muons Muons in Mix D wax Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.56479 0.990 60.9 0.07490 3.6823 0.1371 2.7145 3.0780 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 8.322 8.322 6.628 × 10 -1 14.0 MeV 5.616 × 10 1 6.485 6.486 1.213 × 10 0 20.0 MeV 6.802 × 10 1 5.060 5.060 2.273 × 10 0 30.0 MeV 8.509 × 10 1 3.922 3.922 4.549 × 10 0 40.0 MeV 1.003 × 10 2 3.347 3.347 7.327 × 10 0 80.0 MeV 1.527 × 10 2 2.505 2.506 2.158 × 10 1 100. MeV 1.764 × 10 2 2.346 2.346 2.985 × 10 1 140. MeV 2.218 × 10 2 2.182 2.182 4.761 × 10 1 200. MeV 2.868 × 10 2 2.087 2.087 7.584 × 10 1 300. MeV 3.917 × 10 2 2.049 0.000 2.049 1.243 × 10 2 328. MeV 4.201 × 10 2 2.048 0.000 2.048 Minimum ionization 400. MeV 4.945 × 10 2 2.053 0.000 2.053 1.731 × 10 2 800. MeV 8.995 × 10 2 2.125 0.000 0.000 2.125 3.647 × 10 2 1.00 GeV 1.101 × 10 3 2.158 0.000 0.000 2.159 4.581 × 10 2 1.40 GeV 1.502 × 10 3 2.213

198

Table  

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

Muons Muons in Sodium nitrate NaNO 3 Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.49415 2.261 114.6 0.09391 3.5097 0.1534 2.8221 3.6502 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.702 6.702 8.281 × 10 -1 14.0 MeV 5.616 × 10 1 5.239 5.239 1.510 × 10 0 20.0 MeV 6.802 × 10 1 4.100 4.100 2.820 × 10 0 30.0 MeV 8.509 × 10 1 3.187 3.187 5.624 × 10 0 40.0 MeV 1.003 × 10 2 2.726 2.726 9.039 × 10 0 80.0 MeV 1.527 × 10 2 2.053 2.053 2.648 × 10 1 100. MeV 1.764 × 10 2 1.927 1.927 3.656 × 10 1 140. MeV 2.218 × 10 2 1.800 1.800 5.814 × 10 1 200. MeV 2.868 × 10 2 1.729 1.729 9.228 × 10 1 298. MeV 3.894 × 10 2 1.705 0.000 1.705 Minimum ionization 300. MeV 3.917 × 10 2 1.705 0.000 1.705 1.507 × 10 2 400. MeV 4.945 × 10 2 1.714 0.000 1.714 2.092 × 10 2 800. MeV 8.995 × 10 2 1.787 0.000 0.000 1.787 4.377 × 10 2 1.00 GeV 1.101 × 10 3 1.819 0.000 0.000 1.819 5.486 × 10 2 1.40 GeV 1.502

199

Table  

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

Muons Muons in Freon-12B2 (CF 2 Br 2 ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.44901 1.800 284.9 0.05144 3.5565 0.3406 3.7956 5.7976 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 5.330 5.330 1.053 × 10 0 14.0 MeV 5.616 × 10 1 4.190 4.190 1.908 × 10 0 20.0 MeV 6.802 × 10 1 3.297 3.297 3.540 × 10 0 30.0 MeV 8.509 × 10 1 2.577 2.577 7.017 × 10 0 40.0 MeV 1.003 × 10 2 2.212 2.212 1.123 × 10 1 80.0 MeV 1.527 × 10 2 1.680 1.680 3.263 × 10 1 100. MeV 1.764 × 10 2 1.586 1.586 4.491 × 10 1 140. MeV 2.218 × 10 2 1.496 1.496 7.099 × 10 1 200. MeV 2.868 × 10 2 1.452 1.452 1.118 × 10 2 252. MeV 3.421 × 10 2 1.445 0.000 1.445 Minimum ionization 300. MeV 3.917 × 10 2 1.448 0.000 1.449 1.809 × 10 2 400. MeV 4.945 × 10 2 1.467 0.000 0.000 1.468 2.496 × 10 2 800. MeV 8.995 × 10 2 1.556 0.000 0.000 1.557 5.139 × 10 2 1.00 GeV 1.101 × 10 3 1.592 0.001 0.000 1.593 6.409 × 10 2 1.40 GeV

200

Table  

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

Muons Muons in Eye lens (ICRP) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.54977 1.100 73.3 0.09690 3.4550 0.2070 2.7446 3.3720 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.912 7.912 6.984 × 10 -1 14.0 MeV 5.616 × 10 1 6.171 6.171 1.277 × 10 0 20.0 MeV 6.802 × 10 1 4.819 4.819 2.390 × 10 0 30.0 MeV 8.509 × 10 1 3.738 3.738 4.779 × 10 0 40.0 MeV 1.003 × 10 2 3.192 3.192 7.693 × 10 0 80.0 MeV 1.527 × 10 2 2.396 2.396 2.262 × 10 1 100. MeV 1.764 × 10 2 2.251 2.251 3.125 × 10 1 140. MeV 2.218 × 10 2 2.095 2.096 4.976 × 10 1 200. MeV 2.868 × 10 2 2.006 2.006 7.914 × 10 1 300. MeV 3.917 × 10 2 1.971 0.000 1.971 1.296 × 10 2 318. MeV 4.105 × 10 2 1.971 0.000 1.971 Minimum ionization 400. MeV 4.945 × 10 2 1.977 0.000 1.977 1.803 × 10 2 800. MeV 8.995 × 10 2 2.051 0.000 0.000 2.051 3.790 × 10 2 1.00 GeV 1.101 × 10 3 2.085 0.000 0.000 2.085 4.756 × 10 2 1.40 GeV 1.502 × 10

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201

Table  

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

Muons Muons in Compact bone (ICRU) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.53010 1.850 91.9 0.05822 3.6419 0.0944 3.0201 3.3390 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.406 7.406 7.477 × 10 -1 14.0 MeV 5.616 × 10 1 5.783 5.783 1.365 × 10 0 20.0 MeV 6.802 × 10 1 4.521 4.521 2.552 × 10 0 30.0 MeV 8.509 × 10 1 3.511 3.511 5.097 × 10 0 40.0 MeV 1.003 × 10 2 3.000 3.000 8.199 × 10 0 80.0 MeV 1.527 × 10 2 2.247 2.247 2.408 × 10 1 100. MeV 1.764 × 10 2 2.106 2.106 3.330 × 10 1 140. MeV 2.218 × 10 2 1.962 1.962 5.307 × 10 1 200. MeV 2.868 × 10 2 1.880 1.880 8.444 × 10 1 300. MeV 3.917 × 10 2 1.849 0.000 1.850 1.382 × 10 2 314. MeV 4.065 × 10 2 1.849 0.000 1.849 Minimum ionization 400. MeV 4.945 × 10 2 1.856 0.000 1.857 1.922 × 10 2 800. MeV 8.995 × 10 2 1.930 0.000 0.000 1.930 4.036 × 10 2 1.00 GeV 1.101 × 10 3 1.963 0.000 0.000 1.964 5.063 × 10 2 1.40 GeV 1.502

202

Table  

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

Muons Muons in Polyimide film (C 22 H 10 N 2 O 5 ) n Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.51264 1.420 79.6 0.15972 3.1921 0.1509 2.5631 3.3497 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.299 7.299 7.576 × 10 -1 14.0 MeV 5.616 × 10 1 5.695 5.695 1.385 × 10 0 20.0 MeV 6.802 × 10 1 4.449 4.449 2.590 × 10 0 30.0 MeV 8.509 × 10 1 3.453 3.453 5.177 × 10 0 40.0 MeV 1.003 × 10 2 2.949 2.949 8.332 × 10 0 80.0 MeV 1.527 × 10 2 2.214 2.214 2.448 × 10 1 100. MeV 1.764 × 10 2 2.074 2.074 3.384 × 10 1 140. MeV 2.218 × 10 2 1.932 1.932 5.392 × 10 1 200. MeV 2.868 × 10 2 1.851 1.851 8.577 × 10 1 300. MeV 3.917 × 10 2 1.820 0.000 1.820 1.404 × 10 2 314. MeV 4.065 × 10 2 1.820 0.000 1.820 Minimum ionization 400. MeV 4.945 × 10 2 1.826 0.000 1.827 1.953 × 10 2 800. MeV 8.995 × 10 2 1.897 0.000 0.000 1.898 4.102 × 10 2 1.00 GeV 1.101 × 10 3 1.929 0.000 0.000 1.930 5.147 × 10 2 1.40

203

Table  

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

Muons Muons in Silicon dioxide (fused quartz) (SiO 2 ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.49930 2.200 139.2 0.08408 3.5064 0.1500 3.0140 4.0560 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 6.591 6.591 8.438 × 10 -1 14.0 MeV 5.616 × 10 1 5.158 5.158 1.537 × 10 0 20.0 MeV 6.802 × 10 1 4.041 4.041 2.866 × 10 0 30.0 MeV 8.509 × 10 1 3.145 3.145 5.710 × 10 0 40.0 MeV 1.003 × 10 2 2.691 2.691 9.170 × 10 0 80.0 MeV 1.527 × 10 2 2.030 2.030 2.682 × 10 1 100. MeV 1.764 × 10 2 1.908 1.908 3.701 × 10 1 140. MeV 2.218 × 10 2 1.786 1.786 5.878 × 10 1 200. MeV 2.868 × 10 2 1.719 1.719 9.315 × 10 1 288. MeV 3.788 × 10 2 1.699 0.000 1.699 Minimum ionization 300. MeV 3.917 × 10 2 1.699 0.000 1.699 1.518 × 10 2 400. MeV 4.945 × 10 2 1.711 0.000 1.711 2.105 × 10 2 800. MeV 8.995 × 10 2 1.789 0.000 0.000 1.790 4.391 × 10 2 1.00 GeV 1.101 × 10 3 1.823 0.000 0.000 1.824 5.497

204

Table  

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

Muons Muons in Radon Z A [g/mol] ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 86 (Rn) [222.01758 (2)]9.066 × 10 -3 794.0 0.20798 2.7409 1.5368 4.9889 13.2839 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 3.782 3.782 1.535 × 10 0 14.0 MeV 5.616 × 10 1 3.018 3.018 2.730 × 10 0 20.0 MeV 6.802 × 10 1 2.405 2.405 4.980 × 10 0 30.0 MeV 8.509 × 10 1 1.902 1.902 9.715 × 10 0 40.0 MeV 1.003 × 10 2 1.644 1.644 1.540 × 10 1 80.0 MeV 1.527 × 10 2 1.267 1.267 4.394 × 10 1 100. MeV 1.764 × 10 2 1.201 1.201 6.019 × 10 1 140. MeV 2.218 × 10 2 1.140 1.140 9.452 × 10 1 200. MeV 2.868 × 10 2 1.116 1.117 1.479 × 10 2 216. MeV 3.039 × 10 2 1.116 1.116 Minimum ionization 300. MeV 3.917 × 10 2 1.127 0.000 0.000 1.128 2.372 × 10 2 400. MeV 4.945 × 10 2 1.154 0.000 0.000 1.154 3.249 × 10 2 800. MeV 8.995 × 10 2 1.258 0.001 0.000 1.260 6.559 × 10 2 1.00 GeV 1.101 × 10 3 1.300 0.001 0.000 1.302 8.119

205

Table  

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

Muons Muons in Solid carbon dioxide (dry ice; CO 2 ) Z/A ρ [g/cm 3 ] I [eV] a k = m s x 0 x 1 C δ 0 0.49989 1.563 85.0 0.43387 3.0000 0.2000 2.0000 3.4513 0.00 T p Ionization Brems Pair prod Photonucl Total CSDA range [MeV/c] [MeV cm 2 /g] [g/cm 2 ] 10.0 MeV 4.704 × 10 1 7.057 7.057 7.841 × 10 -1 14.0 MeV 5.616 × 10 1 5.508 5.508 1.432 × 10 0 20.0 MeV 6.802 × 10 1 4.304 4.304 2.679 × 10 0 30.0 MeV 8.509 × 10 1 3.341 3.341 5.353 × 10 0 40.0 MeV 1.003 × 10 2 2.854 2.854 8.612 × 10 0 80.0 MeV 1.527 × 10 2 2.145 2.145 2.529 × 10 1 100. MeV 1.764 × 10 2 2.017 2.017 3.493 × 10 1 140. MeV 2.218 × 10 2 1.886 1.886 5.554 × 10 1 200. MeV 2.868 × 10 2 1.812 1.812 8.811 × 10 1 300. MeV 3.917 × 10 2 1.787 0.000 1.787 1.438 × 10 2 303. MeV 3.950 × 10 2 1.787 0.000 1.787 Minimum ionization 400. MeV 4.945 × 10 2 1.795 0.000 1.795 1.997 × 10 2 800. MeV 8.995 × 10 2 1.866 0.000 0.000 1.866 4.182 × 10 2 1.00 GeV 1.101 × 10 3 1.896 0.000 0.000 1.897 5.245 × 10

206

Muon pairs from In+In collision at SPS energy  

E-Print Network [OSTI]

NA60 collaboration has extracted the inverse slope parameters, T_{eff} of the dimuon spectra originating from the In+In collisions at root(s_NN)=17.3 GeV for various invariant mass region. They have observed that the inverse slope parameter as a function of invariant mass of the lepton pair drops beyond the rho-peak. In the present work, first we reproduce the observed invariant mass and transverse momentum spectra of the muon pairs. Then show that the slope parameters extracted from the transverse momentum distributions for various invariant mass region windows can be explained by assuming formation of a partonic phase initially which reverts to hadronic phase through a weak first order phase transition at a temperature T_c ~ 175 MeV. It is observed that a scenario without the formation of a partonic phase does not reproduce the non-monotonic behaviour of the inverse slope parameter non typical of radial flow.

Jajati K Nayak; Jan-e Alam; Tetsufumi Hirano; Sourav Sarkar; Bikash Sinha

2009-02-03T23:59:59.000Z

207

Long-range Cooper pair splitting Enhanced by Supercurrent  

E-Print Network [OSTI]

We investigate crossed Andreev reflection (CAR) in a long-range normal metal-superconductor-normal metal junction, with the superconductor carrying a supercurrent along the junction. The energy splitting of quasiparticles in the superconductor induced by the supercurrent opens an energy window, in which CAR can occur over a distance between two normal leads much larger than the superconducting coherence length, with another nonlocal process of elastic cotunneling being completely quenched. As a result, CAR is significantly enhanced within the energy window, and dominates the nonlocal transport, which can be directly measured by the nonlocal differential conductance. The nonlocal entangled electron pairs generated via inverse CAR may belong to opposite or equal energy levels beyond the tunneling limit, and the total entanglement production rate within a unit bias voltage is solely determined by the CAR probability as $\\mathcal{P}=2(1-A_2)A_2/h$. Our work indicates that a long-range Cooper pair splitter with high efficiency of nonlocal entanglement production can be implemented by simply driving a supercurrent.

Wei Chen; D. N. Shi; D. Y. Xing

2014-08-09T23:59:59.000Z

208

State recovery and lockstep execution restart in a system with multiprocessor pairing  

DOE Patents [OSTI]

System, method and computer program product for a multiprocessing system to offer selective pairing of processor cores for increased processing reliability. A selective pairing facility is provided that selectively connects, i.e., pairs, multiple microprocessor or processor cores to provide one highly reliable thread (or thread group). Each paired microprocessor or processor cores that provide one highly reliable thread for high-reliability connect with a system components such as a memory "nest" (or memory hierarchy), an optional system controller, and optional interrupt controller, optional I/O or peripheral devices, etc. The memory nest is attached to a selective pairing facility via a switch or a bus. Each selectively paired processor core is includes a transactional execution facility, whereing the system is configured to enable processor rollback to a previous state and reinitialize lockstep execution in order to recover from an incorrect execution when an incorrect execution has been detected by the selective pairing facility.

Gara, Alan; Gschwind, Michael K; Salapura, Valentina

2014-01-21T23:59:59.000Z

209

Density and pair-density scaling for deriving the Euler equation in density-functional and pair-density-functional theory  

SciTech Connect (OSTI)

A link between density and pair density functional theories is presented. Density and pair density scaling are used to derive the Euler equation in both theories. Density scaling provides a constructive way of obtaining approximations for the Pauli potential. The Pauli potential (energy) of the density functional theory is expressed as the difference of the scaled and original exchange-correlation potentials (energies).

Nagy, A. [Department of Theoretical Physics, University of Debrecen, H-4010 Debrecen (Hungary)

2011-09-15T23:59:59.000Z

210

N=2 Super Boussinesq Hierarchy: Lax Pairs and Conservation Laws  

E-Print Network [OSTI]

We study the integrability properties of the one-parameter family of $N=2$ super Boussinesq equations obtained earlier by two of us (E.I. \\& S.K., Phys. Lett. B 291 (1992) 63) as a hamiltonian flow on the $N=2$ super-$W_3$ algebra. We show that it admits nontrivial higher order conserved quantities and hence gives rise to integrable hierarchies only for three values of the involved parameter, $\\alpha=-2,\\;-1/2,\\;5/2$. We find that for the case $\\alpha = -1/2$ there exists a Lax pair formulation in terms of local $N=2$ pseudo-differential operators, while for $\\alpha = -2$ the associated equation turns out to be bi-hamiltonian.

S. Bellucci; E. Ivanov; S. Krivonos; A. Pichugin

1993-05-18T23:59:59.000Z

211

Valley pair qubits in double quantum dots of gapped graphene  

E-Print Network [OSTI]

The rise of graphene opens a new door to qubit implementation, as discussed in the recent proposal of valley pair qubits in double quantum dots of gapped graphene (Wu et al., arXiv: 1104.0443 [cond-mat.mes-hall]). The work here presents the comprehensive theory underlying the proposal. It discusses the interaction of electrons with external magnetic and electric fields in such structures. Specifically, it examines a strong, unique mechanism, i.e., the analogue of the 1st-order relativistic effect in gapped graphene. This mechanism is state mixing free and allows, together with the electrically tunable exchange coupling, a fast, all-electric manipulation of qubits via electric gates, in the time scale of ns. The work also looks into the issue of fault tolerance in a typical case, yielding at 10oK a long qubit coherence time (~O(ms)).

G. Y. Wu; N. -Y. Lue; L. Chang

2011-07-03T23:59:59.000Z

212

Interaction between graphene and metamaterials: split rings vs. wire pairs  

SciTech Connect (OSTI)

We have recently shown that graphene is unsuitable to replace metals in the current-carrying elements of metamaterials. At the other hand, experiments have demonstrated that a layer of graphene can modify the optical response of a metal-based metamaterial. Here we study this electromagnetic interaction between metamaterials and graphene. We show that the weak optical response of graphene can be modified dramatically by coupling to the strong resonant fields in metallic structures. A crucial element determining the interaction strength is the orientation of the resonant fields. If the resonant electric field is predominantly parallel to the graphene sheet (e.g., in a complementary split-ring metamaterial), the metamaterials resonance can be strongly damped. If the resonant field is predominantly perpendicular to the graphene sheet (e.g., in a wire-pair metamaterial), no significant interaction exists.

Zou, Yanhong; Tassin, Philippe; Koschny, Thomas; Soukoulis, Costas

2012-05-14T23:59:59.000Z

213

Search for neutralino pair production at the CERN LHC  

E-Print Network [OSTI]

We provide the next-to-leading order (NLO) predictions for the neutralino pair production via quark-antiquark annihilation and gluon-gluon fusion at the CERN Large Hadron Collider, focusing on the lightest neutralino which is likely to be the lightest supersymmetric particle. The dependence of total LO, NLO cross sections, and $K$ factor on the center-of-mass energy, the $M_2$-$\\mu$ mass plane, the squark mass, and the factorization and renormalization scales is comprehensively analyzed for three different scenarios in the minimal supersymmetric standard model and the constrained minimal supersymmetric standard model. We find that the LO cross section is considerably increased by the NLO correction, and the $K$ factor value is clearly related to the Higgsino/gaugino mass parameters, the squark mass, and the factorization and renormalization scales.

Demirci, M

2014-01-01T23:59:59.000Z

214

Search for neutralino pair production at the CERN LHC  

E-Print Network [OSTI]

We provide the next-to-leading order (NLO) predictions for the neutralino pair production via quark-antiquark annihilation and gluon-gluon fusion at the CERN Large Hadron Collider, focusing on the lightest neutralino which is likely to be the lightest supersymmetric particle. The dependence of total LO, NLO cross sections, and $K$ factor on the center-of-mass energy, the $M_2$-$\\mu$ mass plane, the squark mass, and the factorization and renormalization scales is comprehensively analyzed for three different scenarios in the minimal supersymmetric standard model and the constrained minimal supersymmetric standard model. We find that the LO cross section is considerably increased by the NLO correction, and the $K$ factor value is clearly related to the Higgsino/gaugino mass parameters, the squark mass, and the factorization and renormalization scales.

M. Demirci; A. I. Ahmadov

2014-04-02T23:59:59.000Z

215

Discovering the Higgs boson with low mass muon pairs  

Science Journals Connector (OSTI)

Many models of electroweak symmetry breaking have an additional light pseudoscalar. If the Higgs boson can decay to a new pseudoscalar, LEP searches for the Higgs can be significantly altered and the Higgs can be as light as 86GeV. Discovering the Higgs boson in these models is challenging when the pseudoscalar is lighter than 10GeV because it decays dominantly into tau leptons. In this paper, we discuss discovering the Higgs in a subdominant decay mode where one of the pseudoscalars decays to a pair of muons. This search allows for potential discovery of a cascade-decaying Higgs boson with the complete Tevatron data set or early data at the LHC.

Mariangela Lisanti and Jay G. Wacker

2009-06-10T23:59:59.000Z

216

Reduction in maximum time uncertainty of paired time signals  

DOE Patents [OSTI]

Reduction in the maximum time uncertainty (t/sub max/ - t/sub min/) of a series of paired time signals t/sub 1/ and t/sub 2/ varying between two input terminals and representative of a series of single events where t/sub 1/ less than or equal to t/sub 2/ and t/sub 1/ + t/sub 2/ equals a constant, is carried out with a circuit utilizing a combination of OR and AND gates as signal selecting means and one or more time delays to increase the minimum value (t/sub min/) of the first signal t/sub 1/ closer to t/sub max/ and thereby reduce the difference. The circuit may utilize a plurality of stages to reduce the uncertainty by factors of 20 to 800.

Theodosiou, G.E.; Dawson, J.W.

1981-02-11T23:59:59.000Z

217

Dynamically tunable Fano resonance in periodically asymmetric graphene nanodisk pair  

E-Print Network [OSTI]

We present a dynamically frequency tunable Fano resonance planar device composed of periodically asymmetric graphene nanodisk pair for the mid-infrared region. There are two kinds of modes in this structure, that is, the symmetric mode and the antisymmetric mode. The resonance coupling between the symmetric and antisymmetric modes creates a classical Fano resonance. Both of the Fano resonance amplitude and frequency of the structure can be dynamically controlled by varying the Fermi energy of graphene. Resonance transition in the structure is studied to reveal the physical mechanism behind the dynamically tunable Fano resonance. The features of the Fano resonant graphene nanostructures should have promising applications in tunable THz filters, switches, and modulators.

Zhang, Zhengren; Fan, Yuancheng; Yin, Pengfei; Zhang, Liwei; Shi, Xi

2015-01-01T23:59:59.000Z

218

Cooper-pair current in the presence of flux noise  

Science Journals Connector (OSTI)

We study the effect of flux noise on the Cooper pair current of a superconducting charge pump. We generalize the definition of the current in order to take into account the contribution induced by the environment. It turns out that this dissipative current vanishes for charge noise but it is finite in general for noise operators that do not commute with the charge operator. We discuss in a generic framework the effect of flux noise and present a way to engineer it by coupling the system to an additional external circuit. We calculate numerically the pumped charge through the device by solving the master equation for the reduced density matrix of the system and show how it depends on the coupling to the artificial environment.

P. Solinas; M. Mttnen; J. Salmilehto; J. P. Pekola

2012-01-20T23:59:59.000Z

219

Enhanced superconducting pairing interaction in indium-doped tin telluride  

SciTech Connect (OSTI)

The ferroelectric degenerate semiconductor Sn{sub 1-{delta}}Te exhibits superconductivity with critical temperatures, T{sub c}, of up to 0.3 K for hole densities of order 10{sup 21} cm{sup -3}. When doped on the tin site with greater than x{sub c} = 1.7(3)% indium atoms, however, superconductivity is observed up to 2 K, though the carrier density does not change significantly. We present specific heat data showing that a stronger pairing interaction is present for x > x{sub c} than for x < x{sub c}. By examining the effect of In dopant atoms on both T{sub c} and the temperature of the ferroelectric structural phase transition, T{sub SPT}, we show that phonon modes related to this transition are not responsible for this T{sub c} enhancement, and discuss a plausible candidate based on the unique properties of the indium impurities.

Erickson, A.S.

2010-05-03T23:59:59.000Z

220

Enhanced superconducting pairing interaction in indium-doped tin telluride  

SciTech Connect (OSTI)

The ferroelectric degenerate semiconductor Sn{sub 1-{delta}}Te exhibits superconductivity with critical temperatures, T{sub c}, of up to 0.3 K for hole densities of order 10{sup 21} cm{sup -3}. When doped on the tin site with greater than x{sub c} = 1.7(3)% indium atoms, however, superconductivity is observed up to 2 K, though the carrier density does not change significantly. We present specific heat data showing that a stronger pairing interaction is present for x > x{sub c} than for x < x{sub c}. By examining the effect of In dopant atoms on both T{sub c} and the temperature of the ferroelectric structural phase transition, T{sub SPT}, we show that phonon modes related to this transition are not responsible for this T{sub c} enhancement, and discuss a plausible candidate based on the unique properties of the indium impurities.

Erickson, A.S.; Chu, J.-H.; /Stanford U., Appl. Phys. Dept. /Stanford U., Geballe Lab.; Toney, M.F.; Geballe, T.H.; Fisher, I.R.; /SLAC, SSRL /Stanford U., Appl. Phys. Dept. /Stanford U., Geballe Lab.

2010-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Effective density dependent pairing forces in the T=1 and T=0 channels  

E-Print Network [OSTI]

Effective density dependent pairing forces of zero range are adjusted on gap values in T=0,1 channels calculated with the Paris force in symmetric nuclear matter. General discussions on the pairing force are presented. In conjunction with the effective k-mass the nuclear pairing force seems to need very little renormalization in the T=1 channel. The situation in the T=0 channel is also discussed.

Garrido, E; Moya de Guerra, E; Schuck, P

1999-01-01T23:59:59.000Z

222

Vaporization of color-singlet pairs from a quark-gluon plasma  

Science Journals Connector (OSTI)

We consider the hadronization of a QCD plasma by diffusion of quark-antiquark pairs through the plasma's surface. We apply the principle of detailed balance to argue that the surface is readily penetrable by color-singlet pairs. The resulting blackbody surface brightness exceeds that of other hadronization mechanisms. We note that the volume increase, needed to accommodate the plasma's high entropy in the dilute hadronic phase, compensates most of the combinatoric and statistical factors needed to select such pairs from the plasma. We conclude that the rate of evaporation of preformed pairs is ample to maintain phase equilibrium with a freely expanding meson gas outside the plasma.

Axel P. Vischer; Jitendra C. Parikh; Philip J. Siemens

1991-01-01T23:59:59.000Z

223

Natural orbits of atomic Cooper pairs in a nonuniform Fermi gas  

E-Print Network [OSTI]

We examine the basic mode structure of atomic Cooper pairs in an inhomogeneous Fermi gas. Based on the properties of Bogoliubov quasi-particle vacuum, the single particle density matrix and the anomalous density matrix share the same set of eigenfunctions. These eigenfunctions correspond to natural pairing orbits associated with the BCS ground state. We investigate these orbits for a Fermi gas in a spherical harmonic trap, and construct the wave function of a Cooper pair in the form of Schmidt decomposition. The issue of spatial quantum entanglement between constituent atoms in a pair is addressed.

Y. H. Pong; C. K. Law

2006-05-08T23:59:59.000Z

224

E-Print Network 3.0 - adolescent twin pairs Sample Search Results  

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

Sample search results for: adolescent twin pairs Page: << < 1 2 3 4 5 > >> 1 Genes, Brain and Behavior (2009) 8: 107113 2009 The Authors Journal compilation 2009 Blackwell...

225

E-Print Network 3.0 - affected sib-pair families Sample Search...  

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

pairs into two diagnostic categories: "narrow" when both affected sibs had autism, and "broad... the distribution of affected ... Source: Ecole Polytechnique, Centre de...

226

Dynamics of iron-acceptor-pair formation in co-doped silicon  

SciTech Connect (OSTI)

The pairing dynamics of interstitial iron and dopants in silicon co-doped with phosphorous and several acceptor types are presented. The classical picture of iron-acceptor pairing dynamics is expanded to include the thermalization of iron between different dopants. The thermalization is quantitatively described using Boltzmann statistics and different iron-acceptor binding energies. The proper understanding of the pairing dynamics of iron in co-doped silicon will provide additional information on the electronic properties of iron-acceptor pairs and may become an analytical method to quantify and differentiate acceptors in co-doped silicon.

Bartel, T.; Gibaja, F.; Graf, O.; Gross, D.; Kaes, M.; Heuer, M.; Kirscht, F. [Calisolar GmbH, Magnusstrasse 11, 12489 Berlin (Germany)] [Calisolar GmbH, Magnusstrasse 11, 12489 Berlin (Germany); Mller, C. [CiS Forschungsinstitut fr Mikrosensorik und Photovoltaik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt (Germany) [CiS Forschungsinstitut fr Mikrosensorik und Photovoltaik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt (Germany); TU Ilmenau, Institut fr Physik, Weimarer Str. 32, 98693 Ilmenau (Germany); Lauer, K. [CiS Forschungsinstitut fr Mikrosensorik und Photovoltaik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt (Germany)] [CiS Forschungsinstitut fr Mikrosensorik und Photovoltaik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt (Germany)

2013-11-11T23:59:59.000Z

227

Final state interactions at the threshold of Higgs boson pair production  

E-Print Network [OSTI]

We study the effect of final state interactions at the threshold of Higgs boson pair production in the Glashow-Weinberg-Salam model. We consider three major processes of the pair production in the model: lepton pair annihilation, ZZ fusion, and WW fusion. We find that the corrections caused by the effect for these processes are markedly different. According to our results, the effect can cause non-negligible corrections to the cross sections for lepton pair annihilation and small corrections for ZZ fusion, and this effect is negligible for WW fusion.

Zhang, Zhentao

2015-01-01T23:59:59.000Z

228

Massive-muon-pair production at high energy  

Science Journals Connector (OSTI)

A detailed analysis of the inclusive massive-?-pair production process in high-energy proton-proton collisions is presented based on the combined assumptions of light-cone (LC) expansions and multi-Regge theory. The scaling limit is LC dominated and the assumed strongly convergent Regge theory leads to dominance by the leading LC singularities. The resulting amplitude is expressed as a sum of two distinct contributions, a "pionization" piece, which dominates at large dimuon mass M, and a "fragmentation" piece, which dominates at smaller M. The result of the combination of these two contributions, each of fast decrease in M, can produce a shoulder in the d ?dM cross section, as seems to be present experimentally. This requires a small, perhaps vanishing, Pomeron-particle-Pomeron coupling at t=0. A phenomenological model, which simply incorporates the derived behaviors of the scattering amplitude, is introduced to fit the data quantitatively. A good fit to the d ?dM data (at fixed energy) fixes the (five) parameters. The model then is compared with the experimental curves for the transverse and longitudinal dimuon cross sections and the total (energy-dependent) cross section. Good agreement is found. A comparison with the parton model is also given.

R. A. Brandt, A. Kaufman, and G. Preparata

1974-07-01T23:59:59.000Z

229

Emission of Microwave Photon Pairs by a Tunnel Junction  

E-Print Network [OSTI]

Generation and control of non-classical electromagnetic fields is of crucial importance for quantum information physics. While usual methods for the production of such fields rely on a non-linearity (of a crystal, a Josephson junction, etc.), a recent experiment performed on a normal conductor, a tunnel junction under microwave irradiation, has unveiled an alternative: the use of electron shot noise in a quantum conductor\\cite{PAN_squeezing}. Here we show that such a device can emit \\emph{pairs of microwave photons} of different frequencies with a rate as high as that of superconducting Josephson junctions\\cite{Flurin}. This results in intensity fluctuations of the photon field at two different frequencies being correlated below the photon shot noise,i.e. two-mode amplitude squeezing. Our experiment constitutes a fundamental step towards the understanding of electronic noise in terms of quantum optics, and shows that even a normal conductor could be used as a resource for quantum information processing.

Jean-Charles Forgues; Christian Lupien; Bertrand Reulet

2014-03-21T23:59:59.000Z

230

The Detectability of Pair-Production Supernovae at z < 6  

E-Print Network [OSTI]

Nonrotating, zero metallicity stars with initial masses 140 production supernovae (PPSNe), in which an electron-positron pair-production instability triggers explosive nuclear burning. Interest in such stars has been rekindled by recent theoretical studies that suggest primordial molecular clouds preferentially form stars with these masses. Since metal enrichment is a local process, the resulting PPSNe could occur over a broad range of redshifts, in pockets of metal-free gas. Using the implicit hydrodynamics code KEPLER, we have calculated a set of PPSN light curves that addresses the theoretical uncertainties and allows us to assess observational strategies for finding these objects at intermediate redshifts. The peak luminosities of typical PPSNe are only slightly greater than those of Type Ia, but they remain bright much longer (~ 1 year) and have hydrogen lines. Ongoing supernova searches may soon be able to limit the contribution of these very massive stars to < 1% of the total star formation rate density out to z=2 which already provides useful constraints for theoretical models. The planned Joint Dark Energy Mission satellite will be able to extend these limits out to z=6.

Evan Scannapieco; Piero Madau; Stan Woosley; Alexander Heger; Andrea Ferrara

2005-07-08T23:59:59.000Z

231

Pair-production multiplicities in rotation-powered pulsars  

E-Print Network [OSTI]

We discuss the creation of electron-positron cascades in the context of pulsar polar cap acceleration models and derive several useful analytic and semi-analytic results for the spatial extent and energy response of the cascade. Instead of Monte Carlo simulations, we use an integro- differential equation which describes the development of the cascade energy spectrum in one space dimension quite well, when it is compared to existing Monte Carlo models. We reduce this full equation to a single integral equation, from which we can derive useful results, such as the energy loss between successive generations of photons and the spectral index of the response. We find that a simple analytic formula represents the pair cascade multiplicity quite well, provided that the magnetic field is below 10^12 Gauss, and that an only slightly more complex formula matches the numerically-calculated cascade at all other field strengths. Using these results, we find that cascades triggered by gamma rays emitted through inverse Compton scattering of thermal photons from the neutron star's surface, both resonant and non-resonant, are important for the dynamics of the polar cap region in many pulsars.

J. A. Hibschman; J. Arons

2001-07-11T23:59:59.000Z

232

Lateral distribution of muon pairs in deep underground muon showers  

Science Journals Connector (OSTI)

The lateral distribution of muon showers deep underground in the Utah muon detector has been studied. The results are presented in the form of a decoherence curve, which is defined to be the rate of pairs of coincident muons in two small detectors (as a function of their separation) divided by the product of the areas of the detectors. Rates are measured for separations from 1 to greater than 60 m for depths ranging from 2.4 105 gcm-2 to 5.6 105 gcm-2 and zenith angles ranging from 42.5 to 62.5 degrees. Significant improvements on previously reported data have been made due to increased detector-memory size, improved triggering efficiency, longer running time and better statistical analysis. When the decoherence curve is parameterized by the function R(x)=R0e-xx0 the value of the mean separation x0 at 47.5, 2.4 105 gcm-2 is 11.21 0.38 m. In a modified scaling model this separation suggests an average transverse momentum of roughly 0.65 GeV/c for muons from hadron-air collisions with energy > 10 TeV.

G. H. Lowe; H. E. Bergeson; J. W. Keuffel; M. O. Larson; J. L. Morrison; W. J. West

1976-06-01T23:59:59.000Z

233

Top Quark Properties from Top Pair Events and Decays  

SciTech Connect (OSTI)

Over a decade since the discovery of the top quark we are still trying to unravel mysteries of the heaviest observed particle and learn more about its nature. The continuously accumulating statistics of CDF and DO data provide the means for measuring top quark properties with ever greater precision and the opportunity to search for signs of new physics that could be manifested through subtle deviations from the standard model in the production and decays of top quarks. In the following we present a slice of the rich program in top quark physics at the Fermilab Tevatron: measurements of the properties of top quark decays and searches for unusual phenomena in events with pair produced tops. In particular, we discuss the most recent and precise CDF and DO measurements of the transverse polarization of W bosons from top decays, branching ratios and searches for flavor-changing neutral current decays, decays into charged Higgs and invisible decays. These analyses correspond to integrated luminosities ranging from 0.9 to 2.7 fb{sup -1}.

Ivanov, A.; /UC, Davis

2008-11-01T23:59:59.000Z

234

Two-Dimensional Simulations of Pulsational Pair-Instability Supernovae  

E-Print Network [OSTI]

Massive stars that end their lives with helium cores in the range of 35 to 65 Msun are known to produce repeated thermonuclear outbursts due to a recurring pair-instability. In some of these events, solar masses of material are ejected in repeated outbursts of several times 10$^{50}$ erg each. Collisions between these shells can sometimes produce very luminous transients that are visible from the edge of the observable universe. Previous 1D studies of these events produce thin, high-density shells as one ejection plows into another. Here, in the first multidimensional simulations of these collisions, we show that the development of a Rayleigh-Taylor instability truncates the growth of the high density spike and drives mixing between the shells. The progenitor is a 110 Msun solar-metallicity star that was shown in earlier work to produce a superluminous supernova. The light curve of this more realistic model has a peak luminosity and duration that are similar to those of 1D models but a structure that is smoot...

Chen, Ke-Jung; Heger, Alexander; Almgren, Ann; Whalen, Daniel

2014-01-01T23:59:59.000Z

235

A CLUSTER PAIR: A3532 AND A3530  

SciTech Connect (OSTI)

We present a detailed study of a close pair of clusters of galaxies, A3532 and A3530, and their environments. The Chandra X-ray image of A3532 reveals the presence of substructures on scales of {approx}20'' in its core. XMM-Newton maps of the clusters show excess X-ray emission from an overlapping region between them. Spectrally determined projected temperature and entropy maps do not show any signs of cluster scale mergers either in the overlapping region or in any of the clusters. In A3532, however, some signs of the presence of galaxy scale mergers are visible, e.g., anisotropic temperature variations in the projected thermodynamic maps, a wide-angle-tailed (WAT) radio source in the brighter nucleus of its dumbbell brightest cluster galaxy, and a candidate X-ray cavity coincident with the northwestern extension of the WAT source in the low-frequency radio observations. The northwestern extension in A3532 seems either a part of the WAT or an unrelated diffuse source in A3532 or in the background. There is an indication that the cool core in A3532 has been disrupted by the central activity of the galactic nucleus. A reanalysis of the redshift data reinforces the close proximity of the clusters. The excess emission in the overlapping region appears to be a result of tidal interactions as the two clusters approach each other for the first time. However, we cannot rule out the possibility of the excess being due to the chance superposition of their X-ray halos.

Lakhchaura, Kiran; Singh, K. P. [Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Mumbai 400 005 (India)] [Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Mumbai 400 005 (India); Saikia, D. J. [National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, Pune 411 007 (India)] [National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, Pune 411 007 (India); Hunstead, R. W., E-mail: kiran_astro@tifr.res.in [Sydney Institute for Astronomy, School of Physics, University of Sydney, Sydney, NSW 2006 (Australia)

2013-04-10T23:59:59.000Z

236

Resonance tunneling of cooper pairs in a superconductor-polymer-superconductor josephson junction  

SciTech Connect (OSTI)

It is shown that the superconducting current flowing though a polymer in a superconductor-polymer-superconductor Josephson structure is due to resonant tunneling of Cooper pairs. The critical current and the thickness of the polymer in which the superconducting current is observed depend on the coherence length of a Cooper pair in the superconductor contacting the polymer.

Ionov, A. I., E-mail: ionov@tuch.ioffe.ru [Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation)

2013-05-15T23:59:59.000Z

237

Multiple paternity in Asclepias syriaca using a paired-fruit analysis  

E-Print Network [OSTI]

Multiple paternity in Asclepias syriaca using a paired-fruit analysis Julie J. Gold and Joel S. Shore Introduction Abstract: We investigated the extent of multiple paternity within and between fruits within fruits. When pairs of fruits obtained from individual ramets were analyzed in a similar manner

Shore, Joel S.

238

OPPENHEIM CONJECTURE FOR PAIRS CONSISTING OF A LINEAR FORM AND A QUADRATIC FORM  

E-Print Network [OSTI]

OPPENHEIM CONJECTURE FOR PAIRS CONSISTING OF A LINEAR FORM AND A QUADRATIC of the Oppenheim conjecture, we prov* *e that the set {(Q(x), L(x)) : x 2 Zd} is dense in R2provided that Q; OPPENHEIM CONJECTURE FOR PAIRS 2 It is easy to see that the second condition

Gorodnik, Alexander

239

Monte Carlo calculations of pair production in high-intensity laser-plasma interactions  

E-Print Network [OSTI]

Gamma-ray and electron-positron pair production will figure prominently in laser-plasma experiments with next generation lasers. Using a Monte Carlo approach we show that straggling effects arising from the finite recoil an electron experiences when it emits a high energy photon, increase the number of pairs produced on further interaction with the laser fields.

Roland Duclous; John Kirk; Anthony Bell

2010-10-21T23:59:59.000Z

240

Iron Is an Essential Cause of Fishy Aftertaste Formation in Wine and Seafood Pairing  

Science Journals Connector (OSTI)

Iron Is an Essential Cause of Fishy Aftertaste Formation in Wine and Seafood Pairing ... Fishy aftertaste is sometimes perceived in wine with fish and seafood pairing. ... However, what component of wine clashes with seafood or what compound contributes to the unpleasant fishy aftertaste in the mouth remains an open problem. ...

Takayuki Tamura; Kiyoshi Taniguchi; Yumiko Suzuki; Toshiyuki Okubo; Ryoji Takata; Tomonori Konno

2009-08-26T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Nuclear Physics A 781 (2007) 317341 Symmetry energies, pairing energies, and mass  

E-Print Network [OSTI]

Nuclear Physics A 781 (2007) 317­341 Symmetry energies, pairing energies, and mass equations J of the respective mass equation since symmetry energies are related to the curvature of the nuclear mass surface and pairing energies of atomic nuclei are related to the differences between the excitation energies

O'Donnell, Tom

242

INTRODUCTION Meiosis is the specialized pair of cell divisions that normally  

E-Print Network [OSTI]

and late meiotic prophase. Although pairing and synapsis refer to similar and interrelated processes of homologous chromosomes are largely coincident processes, ruling out a role for premeiotic pairing reorganization are prerequisite steps to the DNA sequence- based homology-search process in higher eukaryotes

Bass, Hank W.

243

Kinetics of electron-positron pair plasmas using an adaptive Monte Carlo method  

E-Print Network [OSTI]

A new algorithm for implementing the adaptive Monte Carlo method is given. It is used to solve the relativistic Boltzmann equations that describe the time evolution of a nonequilibrium electron-positron pair plasma containing high-energy photons and pairs. The collision kernels for the photons as well as pairs are constructed for Compton scattering, pair annihilation and creation, bremsstrahlung, and Bhabha & Moller scattering. For a homogeneous and isotropic plasma, analytical equilibrium solutions are obtained in terms of the initial conditions. For two non-equilibrium models, the time evolution of the photon and pair spectra is determined using the new method. The asymptotic numerical solutions are found to be in a good agreement with the analytical equilibrium states. Astrophysical applications of this scheme are discussed.

Ravi P. Pilla; Jacob Shaham

1997-02-21T23:59:59.000Z

244

3D Relativistic Hartree-Bogoliubov model with a separable pairing interaction  

E-Print Network [OSTI]

A recently introduced separable pairing force for relativistic Hartree-Bogoliubov (RHB) calculations, adjusted in nuclear matter to the pairing gap of the Gogny force, is employed in the 3D RHB model for triaxial shapes. The pairing force is separable in momentum space but, when transformed to coordinate space in calculations of finite nuclei, it is no longer separable because of translational invariance. The corresponding pairing matrix elements are represented as a sum of a finite number of separable terms in the basis of a 3D harmonic oscillator. The 3D RHB model is applied to the calculation of binding energy surfaces and pairing energy maps for a sequence of even-A Sm isotopes.

T. Niksic; D. Vretenar; Y. Tian; Z. Y. Ma; P. Ring

2009-12-07T23:59:59.000Z

245

COSMIC EVOLUTION OF STAR FORMATION ENHANCEMENT IN CLOSE MAJOR-MERGER GALAXY PAIRS SINCE z = 1  

SciTech Connect (OSTI)

The infrared (IR) emission of 'M {sub *} galaxies' (10{sup 10.4} {<=} M {sub star} {<=} 10{sup 11.0} M {sub Sun }) in galaxy pairs, derived using data obtained in Herschel (PEP/HerMES) and Spitzer (S-COSMOS) surveys, is compared to that of single-disk galaxies in well-matched control samples to study the cosmic evolution of the star formation enhancement induced by galaxy-galaxy interaction. Both the mean IR spectral energy distribution and mean IR luminosity of star-forming galaxies (SFGs) in SFG+SFG (S+S) pairs in the redshift bin of 0.6 < z < 1 are consistent with no star formation enhancement. SFGs in S+S pairs in a lower redshift bin of 0.2 < z < 0.6 show marginal evidence for a weak star formation enhancement. Together with the significant and strong sSFR enhancement shown by SFGs in a local sample of S+S pairs (obtained using previously published Spitzer observations), our results reveal a trend for the star formation enhancement in S+S pairs to decrease with increasing redshift. Between z = 0 and z = 1, this decline of interaction-induced star formation enhancement occurs in parallel with the dramatic increase (by a factor of {approx}10) of the sSFR of single SFGs, both of which can be explained by the higher gas fraction in higher-z disks. SFGs in mixed pairs (S+E pairs) do not show any significant star formation enhancement at any redshift. The difference between SFGs in S+S pairs and in S+E pairs suggests a modulation of the sSFR by the intergalactic medium (IGM) in the dark matter halos hosting these pairs.

Xu, C. K.; Shupe, D. L.; Bock, J.; Bridge, C.; Cooray, A.; Lu, N.; Schulz, B. [California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Bethermin, M.; Aussel, H.; Elbaz, D.; Le Floc'h, E.; Riguccini, L. [Laboratoire AIM-Paris-Saclay, CEA/DSM/Irfu, CNRS, Universite Paris Diderot, CE-Saclay, pt courrier 131, F-91191 Gif-sur-Yvette (France); Berta, S.; Lutz, D.; Magnelli, B. [Max-Planck-Institut fuer Extraterrestrische Physik (MPE), Postfach 1312, D-85741 Garching (Germany); Conley, A. [Center for Astrophysics and Space Astronomy 389-UCB, University of Colorado, Boulder, CO 80309 (United States); Franceschini, A. [Dipartimento di Astronomia, Universita di Padova, vicolo Osservatorio, 3, I-35122 Padova (Italy); Marsden, G. [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada); Oliver, S. J. [Astronomy Centre, Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH (United Kingdom); Pozzi, F. [INAF-Osservatorio Astronomico di Roma, via di Frascati 33, I-00040 Monte Porzio Catone (Italy); and others

2012-11-20T23:59:59.000Z

246

Photon-pair generation in photonic crystal fibrebre with a 1.5GHz modelocked VECSEL  

E-Print Network [OSTI]

Four-wave mixing (FWM) in optical fibre is a leading technique for generating high-quality photon pairs. We report the generation of photon pairs by spontaneous FWM in photonic crystal fibre pumped by a 1.5 GHz repetition-rate vertical-external-cavity surface-emitting laser (VECSEL). The photon pairs exhibit high count rates and a coincidence-to-accidental ratio of over 80. The VECSEL's high repetition-rate, high average power, tunability, and small footprint make this an attractive source for quantum key distribution and photonic quantum-state engineering.

Oliver J. Morris; Robert J. A. Francis-Jones; Keith G. Wilcox; Anne C. Tropper; Peter J. Mosley

2014-09-09T23:59:59.000Z

247

Geometric Origin of Pair Production by Electric Field in de Sitter Space  

E-Print Network [OSTI]

The particle production in a de Sitter space provides an interesting model to understand the curvature effect on Schwinger pair production by a constant electric field or Schwinger mechanism on the de Sitter radiation. For that purpose, we employ the recently introduced complex analysis method, in which the quantum evolution in the complex time explains the pair production via the geometric transition amplitude and gives the pair-production rate as the contour integral. We compare the result by the contour integral with that of the phase-integral method.

Sang Pyo Kim

2014-04-15T23:59:59.000Z

248

Proton?Neutron Pairing Interaction in Neutron Rich A ?=?132 Nuclei  

Science Journals Connector (OSTI)

In infinite nuclear systems such as neutron stars pairing phenomena have a particular interest in the study of nuclear structure properties. Thus pairing lies at the heart of quantum many body problems and nuclear process connecting to nucleosynthesis. In this work we are interested on the contribution of this aspect for neutron rich nuclei far from stability in the vicinity of doubly magic 132 Sn . The study of A ?=?134 isobar which presents a proton?neutron mixing in valence space based on the proton?neutron correlation properties. Our results using the P d pairing gap calculations are in a good agreement with the experimental data.

N. Laouet; F. Benrachi; M. Khiter; N. Benmicia; H. Saifi

2010-01-01T23:59:59.000Z

249

Superconductivity of a system with quasilocalized pairs taking account of inequivalence of sites  

SciTech Connect (OSTI)

Superconductivity due to quasilocalized pairs (centers with a negative Hubbard energy U) is studied in the situation when the sites are not completely equivalent (for example, solid solutions). The problem is solved using the BCS theory in the molecular field approximation. The dependences of T/sub c/ and ..delta.. on the scatter of the site energies and on the ratio of the densities of electron pairs and sites are obtained. The highest T/sub c/ is obtained when the density of pairs is half the site density and the scatter of the site energies is least.

Moizhes, B.Y.; Suprun, S.G.

1985-05-01T23:59:59.000Z

250

Description of the even samarium isotopes in the collective pair approximation  

Science Journals Connector (OSTI)

A microscopic multi-j shell calculation is performed to describe the structure of the ground states of the even Sm isotopes within the pairing plus quadrupole model and in the collective pair approximation. Agreement with the experimental data is found for both quadrupole deformation ? and for the diffusivity of the Fermi surface. The variation with the mass number of the structure of the proton and neutron collective pairs is discussed in connection with the increased role of the quadrupole-quadrupole interaction and of the Pauli principle.

F. Catara; A. Insolia; E. Maglione; A. Vitturi

1984-05-01T23:59:59.000Z

251

Pairing states of superfluid {sup 3}He in uniaxially anisotropic aerogel  

SciTech Connect (OSTI)

Stable pairing states of superfluid {sup 3}He in aerogel are examined in the case with a global uniaxial anisotropy which may be created by applying a uniaxial stress to the aerogel. Due to such a global anisotropy, the stability region of an Anderson-Brinkman-Morel (ABM) pairing state becomes wider. In a uniaxially stretched aerogel, the pure polar pairing state with a horizontal line node is predicted to occur, as a three-dimensional superfluid phase, over a measurable width just below the superfluid transition at T{sub c}(P). A possible relevance of the present results to the case with no global anisotropy is also discussed.

Aoyama, Kazushi; Ikeda, Ryusuke [Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)

2006-02-01T23:59:59.000Z

252

Pairing of valence electrons as necessary condition for energy minimization in a crystal  

E-Print Network [OSTI]

Pairing of valence electrons can lead to energy minimization of a crystal. It can be proved by use of representation of the valence electrons as plane waves in periodic potential of the crystal.

Dolgopolov Stanislav Olegovich

2014-10-21T23:59:59.000Z

253

Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions  

E-Print Network [OSTI]

A search for neutral Higgs bosons in the minimal supersymmetric extension of the standard model (MSSM) decaying to tau-lepton pairs in pp collisions is performed, using events recorded by the CMS experiment at the LHC. The ...

CMS Collaboration

254

A New Class of RC4 Colliding Key Pairs with Greater Hamming Distance  

Science Journals Connector (OSTI)

In this paper, we discovered a new class of colliding key pairs of RC4, namely ... discovery of RC4 colliding keys with hamming distance greater than one, that is, the colliding ... the probability of the existen...

Jiageng Chen; Atsuko Miyaji

2010-01-01T23:59:59.000Z

255

Resolution of the pair-wise allosteric interactions found in phosphofructokinase from Bacillus stearothermophilus  

E-Print Network [OSTI]

remain, characterization of the remaining six homotropic interactions was performed. Utilizing a linked function approach to quantify the heterotropic and homotropic effects for each hybrid enzyme, we determined that 5 to 6 of the ten pair...

Ortigosa, Allison Dawn

2004-09-30T23:59:59.000Z

256

Neutral Higgs Boson Pair Production in Standard Model with the Fourth Generation Quarks at LHC  

Science Journals Connector (OSTI)

We investigated the neutral Higgs boson pair production at the CERN Large Hadron Collider (LHC) in the SM with four families. We found that the gluon-gluon fusion mode is the most dominant one in producing neutral Higgs boson pair at the LHC, and it can be used to probe the trilinear Higgs coupling. If the heavy quarks of the fourth generation really exist within the SM, they can manifest their effect on the cross section of the Higgs pair production process at the LHC. Our numerical results show that there will be neutral Higgs boson pair production events per year if the next generation heavy quarks really exist, while there will be only events produced per year if there are only three families in the SM.

Sun Hao; Ma Wen-Gan; Zhou Ya-Jin; Sun Yan-Bin; Zhang Ren-You; Hou Hong-Sheng

2004-01-01T23:59:59.000Z

257

Holographic Behavior in Ultrashort Pulse-pair 2d-Velocimetry  

Science Journals Connector (OSTI)

Two-dimensional velocity interferograms of shocked silicon surface illuminated by a pair of 3ps pulses separated by 260 ps can be treated as holograms to numerically refocus narrow...

Erskine, David J; Smith, Raymond F; Ali, Suzanne; Celliers, Peter M; Bolme, Cynthia A

258

Radiative Corrections to Boson Pair Production in e+e- Annihilation  

Science Journals Connector (OSTI)

The expected accuracy of the experiments of SLC and especially LEP I is a great challenge for theorists to produce adequate predictions for e+e- annihilation into fermion pairs at the Z resonance. Indeed their re...

M. Bhm

1989-01-01T23:59:59.000Z

259

Nucleon and nucleon-pair momentum distributions in A?12 nuclei  

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

We report variational Monte Carlo calculations of single-nucleon momentum distributions for A?12 nuclei and nucleon-pair and nucleon-cluster momentum distributions for A?8. The wave functions have been generated for a Hamiltonian containing the Argonne ?18 two-nucleon and Urbana X three-nucleon potentials. The single-nucleon and nucleon-pair momentum distributions exhibit universal features attributable to the one-pion-exchange tensor interaction The single-nucleon distributions are broken down into proton and neutron components and spin-up and spin-down components where appropriate. The nucleon-pair momentum distributions are given separately for pp and pn pairs. The nucleon-cluster momentum distributions include dp in 3He, tp and dd in S4He, ?d in 6Li,?t in 7Li, and ?? in 8Be. Detailed tables are provided on-line for download.

Wiringa, Robert B. [ANL; Schiavilla, Rocco [ODU, JLAB; Pieper, Steven C. [ANL; Carlson, Joseph A. [LANL

2014-02-01T23:59:59.000Z

260

Pairing preferences of the model mono-valence mono-atomic ions investigated by molecular simulation  

SciTech Connect (OSTI)

We carried out a series of potential of mean force calculations to study the pairing preferences of a series of model mono-atomic 1:1 ions with evenly varied sizes. The probabilities of forming the contact ion pair (CIP) and the single water separate ion pair (SIP) were presented in the two-dimensional plots with respect to the ion sizes. The pairing preferences reflected in these plots largely agree with the empirical rule of matching ion sizes in the small and big size regions. In the region that the ion sizes are close to the size of the water molecule; however, a significant deviation from this conventional rule is observed. Our further analysis indicated that this deviation originates from the competition between CIP and the water bridging SIP state. The competition is mainly an enthalpy modulated phenomenon in which the existing of the water bridging plays a significant role.

Zhang, Qiang [State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning (China) [State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning (China); Department of Chemistry, Bohai University, Jinzhou 121000 (China); Zhang, Ruiting; Zhao, Ying; Li, HuanHuan; Zhuang, Wei, E-mail: wzhuang@dicp.ac.cn, E-mail: gaoyq@pku.edu.cn [State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning (China)] [State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning (China); Gao, Yi Qin, E-mail: wzhuang@dicp.ac.cn, E-mail: gaoyq@pku.edu.cn [College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871 (China)

2014-05-14T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Optical AND and NOT gates at 40 Gbps using electro-absorption modulator/photodiode pairs.  

SciTech Connect (OSTI)

We demonstrate an optical gate architecture using electro-absorption modulator/photodiode pairs to perform AND and NOT functions. Optical bandwidth for both gates reach 40 GHz. Also shown are AND gate waveforms at 40 Gbps.

Tauke-Pedretti, Anna; Overberg, Mark E.; Skogen, Erik J.; Alford, Charles Fred; Sullivan, Charles Thomas; Vawter, Gregory Allen; Peake, Gregory Merwin; Torres, David L.

2010-06-01T23:59:59.000Z

262

Can disordered radical pair systems provide a basis for a magnetic compass in animals?  

Science Journals Connector (OSTI)

...an ordered subset of proteins, these proteins would then tumble due...become increasingly disordered. The alignment of these selected cytosolic proteins within the cell after...magnetic field angle for ensembles of 2500 radical pairs...

2010-01-01T23:59:59.000Z

263

Production of meson pairs, involving tensor and pseudotensor mesons, in photon-photon collisions  

E-Print Network [OSTI]

Starting from a bound-state model of weakly bound quarks for ($q \\bar{q}$) mesons, we derive a formalism for computing the production or decay of such mesons, whatever the value of their internal orbital angular momentum L. That formalism appears as a natural generalization of the Brodsky-Lepage model (valid only for L=0) that has been widely used in recent years for the computation of exclusive processes in perturbative QCD. We here apply it to the production, in photon-photon collisions, of: i) tensor-meson pairs; ii) pseudotensor-meson pairs; iii) hybrid pairs made of a pion and a pseudotensor meson. The numerical results we obtain allow for some hope of experimentally identifying such pairs, in the charged channels, at high-energy e^+e^- colliders of the next generation, provided integrated luminosities as high as

Houra-Yaou, L; Parisi, J; Murgia, F; Hansson, J

1996-01-01T23:59:59.000Z

264

Molecular Recognition of Alkylammonium Contact Ion-Pairs Using a Ditopic Receptor  

E-Print Network [OSTI]

-propylammonium chloride is at least 2 orders of magnitude greater than that for n-propylammonium acetate, n-pairs (Chart 1).10 Here, we report that 1 can also bind monoalkylammo- nium salts as contact ion

Smith, Bradley D.

265

Coherence and Pairing in a Doped Mott Insulator: Application to the Cuprates  

E-Print Network [OSTI]

The issues of single particle coherence and its interplay with singlet pairing are studied within the slave boson gauge theory of a doped Mott insulator. Prior work by one of us [T. Senthil, Phys. Rev. B 78, 045109 (2008)] ...

Lee, Patrick A.

266

First Measurement of the Charge Asymmetry in Beauty-Quark Pair Production  

E-Print Network [OSTI]

The difference in the angular distributions between beauty quarks and antiquarks, referred to as the charge asymmetry, is measured for the first time in b[bar over b] pair production at a hadron collider. The data used ...

Counts, Ian Thomas Hunt

267

Plasmon decay to a neutrino pair via neutrino electromagnetic moments in a strongly magnetized medium  

E-Print Network [OSTI]

We calculate the neutrino luminosity of a degenerate electron gas in a strong magnetic field via plasmon decay to a neutrino pair due to neutrino electromagnetic moments and obtain the relative upper bounds on the effective neutrino magnetic moment.

A. V. Borisov; P. E. Sizin

2014-06-12T23:59:59.000Z

268

Short-term irradiance variability: Preliminary estimation of station pair correlation as a function of distance  

E-Print Network [OSTI]

Review Short-term irradiance variability: Preliminary estimation of station pair correlation, 2010; SMUD, 2010; IEA, 2010). In a recently published article, Hoff and Perez (2010a,b) advanced

269

Low-mass Drell-Yan pairs at RHIC and LHC  

Science Journals Connector (OSTI)

We summarize the calculation of Drell-Yan transverse-momentum distributions using QCD perturbation theory. In particular, the transversemomentum spectrum of low-mass Drell-Yan pairs is calculated with all-orde...

George Fai; Jianwei Qiu

2005-03-01T23:59:59.000Z

270

Pairing mechanism in Bi-O superconductors: A finite-size chain calculation  

Science Journals Connector (OSTI)

We have studied the pairing mechanism in BiO3 systems by calculating the binding energy of a pair of holes in finite Bi-O chains, for parameters that simulate three-dimensional behavior. In agreement with previous results using perturbation theory in the hopping t, for covalent Bi-O binding and parameters for which the parent compound has a disproportionate ground state, pairing induced by the presence of biexcitons is obtained for sufficiently large interatomic Coulomb repulsion. The analysis of appropriate correlation functions shows a rapid metallization of the system as t and the number of holes increase. This fact shrinks the region of parameters for which the finite-size calculations can be trusted without further study. The same model for other parameters yields pairing in two other regimes: bipolaronic and magnetic excitonic.

A. A. Aligia; M. D. Nuez Regueiro; E. R. Gagliano

1989-09-01T23:59:59.000Z

271

Parallel Assembly of Large Genomes from Paired Short Reads (2010 JGI/ANL HPC Workshop)  

ScienceCinema (OSTI)

Srinivas Aluru from Iowa State University gives a presentation on "Parallel Assembly of Large Genomes from Paired Short Reads" at the JGI/Argonne HPC Workshop on January 25, 2010.

Aluru, Srinivas [Iowa State University

2011-06-08T23:59:59.000Z

272

Exceptional Lie Algebras, SU(3) and Jordan Pairs Part 2: Zorn-type Representations  

E-Print Network [OSTI]

A representation of the exceptional Lie algebras is presented. It reflects a simple unifying view and it is realized in terms of Zorn-type matrices. The role of the underlying Jordan pair and Jordan algebra content is crucial in the development of the structure. Each algebra contains three Jordan pairs sharing the same Lie algebra of automorphisms and the same external su(3) symmetry. Applications in physics are outlined.

Alessio Marrani; Piero Truini

2014-03-20T23:59:59.000Z

273

Weak-localization, near-magnetism, and triplet-pairing superconductivity in three dimensions  

SciTech Connect (OSTI)

In three-dimensional nearly magnetic Fermi liquids, disorder due to impurity scattering is shown to enhance the paramagnon strength and to weaken the triplet superconductivity pair-breaking parameter (through weak-localization quantum effects). As a result (a) ''heavy fermion'' superconductors are good candidates to exhibit triplet pairing and (b) normal liquid /sup 3/He can be considered as both nearly magnetic and nearly localized.

Beal-Monod, M.T.

1985-02-01T23:59:59.000Z

274

Parity mixing of pair at nuclear surface due to spin-orbit potential in $^{18}$F  

E-Print Network [OSTI]

We investigate the structure of $^{18}$F with the microscopic wave function based on the three-body $^{16}$O+$p$+$n$ model. In the calculation of the generator coordinate method (GCM) of the three-body model, $T=0$ energy spectra of $J^\\pi=1^+$, $3^+$, and $5^+$ states and $T=1$ spectra of $J^\\pi=0^+$, $2^+$ states in $^{18}$F are described reasonably. Based on the dinucleon picture, the effect of the spin-orbit force on the $T=0$ and $T=1$ $pn$ pairs around the $^{16}$O core is discussed. The $T=1$ pair in the $J^\\pi=0^+$ state gains the spin-orbit potential energy involving the odd-parity mixing in the pair. The spin-orbit potential energy gain with the parity mixing is not so efficient for the $T=0$ pair in the $J^\\pi=1^+$ state. The parity mixing in the pair is regarded as the internal symmetry breaking of the pair in the spin-orbit potential at the nuclear surface.

Yoshiko Kanada-En'yo; Fumiharu Kobayashi

2014-07-01T23:59:59.000Z

275

Expressions for the number of J=0 pairs in even-even Ti isotopes  

E-Print Network [OSTI]

We count the number of pairs in the single j-shell model of {44}Ti for various interactions. For a state of total angular momentum I, the wave function can be written in terms of the probability amplitude D(Jp Jn) that the protons couple to Jp and the neutrons to Jn. For I=0 there are three states with (I=0,T=0) and one with (I=0,T=2). The latter is the double analog of {44}Ca. In that case (T=2), the magnitude of D(JJ) is the same as that of a corresponding two-particle fractional parentage coefficient. In counting the number of pairs with an even angular momentum J, we find a new relationship obtained by diagonalizing a unitary nine-j symbol. We are also able to get results for the `no-interaction' case for T=0 states, for which it is found, e.g., that there are less (J=1,T=0) pairs than on the average. Relative to this `no-interaction case', we find for the most realistic interaction used that there is an enhancement of pairs with angular momentum J=0,2,1 and 7, and a depletion for the others. Also considered are interactions in which only the (J=0,T=1) pair state is at lower energy, only the (J=1,T=0) pair state is lowered and where both are equally lowered, as well as the QQ interaction. We are also able to obtain simplified formulae for the number of J=0 pairs for the I=0 states in {46}Ti and {48}Ti by noting that the unique state with isospin |Tz|+2 is orthogonal to all the states with isospin |Tz|.

L. Zamick; A. Escuderos; S. J. Lee; A. Z. Mekjian; E. Moya de Guerra; A. A. Raduta; P. Sarriguren

2005-01-26T23:59:59.000Z

276

Possible Effects of Pair Echoes on Gamma-Ray Burst Afterglow Emission  

E-Print Network [OSTI]

High-energy emission from gamma-ray bursts (GRBs) is widely expected but had been sparsely observed until recently when the Fermi satellite was launched. If >TeV gamma rays are produced in GRBs and can escape from the emission region, they are attenuated by the cosmic infrared background photons, leading to regeneration of GeV-TeV secondary photons via inverse-Compton scattering. This secondary emission can last for a longer time than the duration of GRBs, and it is called a pair echo. We investigate how this pair echo emission affects spectra and light curves of high energy afterglows, considering not only prompt emission but also afterglow as the primary emission. Detection of pair echoes is possible as long as the intergalactic magnetic field (IGMF) in voids is weak. We find (1) that the pair echo from the primary afterglow emission can affect the observed high-energy emission in the afterglow phase after the jet break, and (2) that the pair echo from the primary prompt emission can also be relevant, but only when significant energy is emitted in the TeV range, typically E_{gamma, >0.1 TeV} > (Y/(1+Y)) epsilon_e E_k. Even non-detections of the pair echoes could place interesting constraints on the strength of IGMF. The more favorable targets to detect pair echoes may be the "naked" GRBs without conventional afterglow emission, although energetic naked GRBs would be rare. If the IGMF is weak enough, it is predicted that the GeV emission extends to >30-300 s.

Kohta Murase; Bing Zhang; Keitaro Takahashi; Shigehiro Nagataki

2009-02-27T23:59:59.000Z

277

Novel Isotope Effects on the Pairing Pseudogap in High-$T_{c}$ Cuprates: Evidences for Polaronic Metal and Precursor BCS-Like Pairing of Large Polarons  

E-Print Network [OSTI]

We have studied the novel isotope effects on the pairing pseudogap in underdoped and optimally doped cuprates within the large-polaron model and two non-standard BCS-like approaches. We have shown that in the intermediate-coupling regime the precursor pairing of large polarons occurs at a mean-field temperature $T^{\\ast}>T_{c}$ and the near-absent, sizable and very large oxygen and copper isotope effects on $T^{\\ast}$ exist in cuprates with small and large Fermi surfaces. Our results for $T^{\\ast}$, isotope shifts and exponents in slightly underdoped and optimally doped cuprates are in quantitative agreement with existing experiments and explain the discrepancy between various experiments.

S. Dzhumanov; O. K. Ganiev; Sh. S. Djumanov

2010-06-15T23:59:59.000Z

278

Beyond the Lone-Pair Model for Structurally Distorted Metal Oxides  

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

Beyond the Lone-Pair Model for Structurally Distorted Metal Oxides Print Beyond the Lone-Pair Model for Structurally Distorted Metal Oxides Print "Ferroelectricity," by analogy to ferromagnetism, is defined as the presence of spontaneous electrical polarization in a material, often arising from distortions in the material's crystal structure. In oxides of the metals lead and bismuth, such distortions were for many years attributed to the existence of "lone pair" electrons: pairs of chemically inert, nonbonding valence electrons in hybrid orbitals that leave noticeable voids in the crystal structure. At the ALS, researchers from the U.K., Ireland, and the U.S. have now obtained definitive experimental evidence that this lone-pair model must be revised. High-resolution x-ray photoemission spectroscopy (XPS) and soft x-ray emission spectroscopy (XES) have clarified the subtle electronic origins of the prototypical distortions in these crystal structures. The results have important implications for the tantalizing possibility of spintronic or superconducting devices combining ferroelectric and ferromagnetic properties.

279

Beyond the Lone-Pair Model for Structurally Distorted Metal Oxides  

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

Beyond the Lone-Pair Model for Structurally Distorted Metal Oxides Print Beyond the Lone-Pair Model for Structurally Distorted Metal Oxides Print "Ferroelectricity," by analogy to ferromagnetism, is defined as the presence of spontaneous electrical polarization in a material, often arising from distortions in the material's crystal structure. In oxides of the metals lead and bismuth, such distortions were for many years attributed to the existence of "lone pair" electrons: pairs of chemically inert, nonbonding valence electrons in hybrid orbitals that leave noticeable voids in the crystal structure. At the ALS, researchers from the U.K., Ireland, and the U.S. have now obtained definitive experimental evidence that this lone-pair model must be revised. High-resolution x-ray photoemission spectroscopy (XPS) and soft x-ray emission spectroscopy (XES) have clarified the subtle electronic origins of the prototypical distortions in these crystal structures. The results have important implications for the tantalizing possibility of spintronic or superconducting devices combining ferroelectric and ferromagnetic properties.

280

Perturbative and nonperturbative EM lepton pair production in relativistic heavy-ion collisions  

SciTech Connect (OSTI)

In this talk, the authors focus on electromagnetic dilepton production from the QED-vacuum in relativistic heavy-ion collisions. Heavy ions in relativistic motion generate strong time-dependent EM fields with large Fourier components which give rise to sizable pair production. There are several motivations for this study: Lepton pair production by hadronic (Drell-Yan) processes has been widely discussed as a possible signature of the quark-gluon plasma formation. The dominant background will come from electromagnetic sources and could even mask the signals from the plasma phase. Electromagnetically produced lepton pairs also impose severe constraints on the design of relativistic heavy-ion colliders such as RHIC and LHC. In addition to the free pair production discussed above, pair-production with capture of the negatively charged lepton into a bound state is also possible. This change of the charge state of the ions is the leading mechanism for beam loss of relativistic colliders. Accurate predictions of the cross section for this process are important because the cross section increases with energy.

Oberacker, V.E.; Wells, J.C.; Umar, A.S. [Oak Ridge National Lab., TN (United States)]|[Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy; Strayer, M.R. [Oak Ridge National Lab., TN (United States)

1993-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Dynamically Close Galaxy Pairs and Merger Rate Evolution in the CNOC2 Redshift Survey  

E-Print Network [OSTI]

We investigate redshift evolution in the galaxy merger and accretion rates, using a well-defined sample of 4184 galaxies with 0.12 < z < 0.55 and R_C < 21.5. We identify 88 galaxies in close (5 < r_p < 20 h^{-1} kpc) dynamical (delta v < 500 km/s) pairs. These galaxies are used to compute global pair statistics, after accounting for selection effects resulting from the flux limit, k-corrections, luminosity evolution, and spectroscopic incompleteness. We find that the number of companions per galaxy (for -21 < M_B^{k,e} < -18) is Nc = 0.0321 +/- 0.0077 at z=0.3. The luminosity in companions, per galaxy, is Lc = 0.0294 +/- 0.0084 x 10^10 h^2 L_sun. We assume that Nc is proportional to the galaxy merger rate, while Lc is directly related to the mass accretion rate. After increasing the maximum pair separation to 50 h^{-1} kpc, and comparing with the low redshift SSRS2 pairs sample, we infer evolution in the galaxy merger and accretion rates of (1+z)^{2.3 +/- 0.7} and (1+z)^{2.3 +/- 0.9} respectively. These are the first such estimates to be made using only confirmed dynamical pairs. When combined with several additional assumptions, this implies that approximately 15% of present epoch galaxies with -21 < M_B < -18 have undergone a major merger since z=1.

D. R. Patton; C. J. Pritchet; R. G. Carlberg; R. O. Marzke; H. K. C. Yee; P. B. Hall; H. Lin; S. L. Morris; M. Sawicki; C. W. Shepherd; G. D. Wirth

2001-09-24T23:59:59.000Z

282

THE SPIN ALIGNMENTS IN GALAXY PAIRS AS A TEST OF BOUNCING COUPLED DARK ENERGY  

SciTech Connect (OSTI)

We investigate the effect of coupled dark energy (cDE) on the spin alignments in isolated pairs of galactic halos using the publicly available data from the hydrodynamic cDE simulations (H-CoDECs) that were run for various cDE models such as EXP001, EXP002, EXP003 (with exponential potential and constant coupling), EXP008e3 (with exponential potential and exponential coupling), and SUGRA003 (with supergravity potential and negative constant coupling), as well as for a standard {Lambda}CDM cosmology (with the WMAP7 parameters). Measuring the cosines of the angles between the spin axes in isolated pairs of galactic halos for each model and determining its probability density distribution, we show that for the SUGRA003 model with bouncing cDE the null hypothesis of no spin alignment in pairs of galactic halos is rejected at a 99.999% confidence level. In contrast, the {Lambda}CDM cosmology yields no significant signal of spin alignment, and the other four cDE models also exhibit only weak signals of spin alignments. The strength of the spin alignment signal is found to be almost independent of the total halo mass and separation distance in galaxy pairs. Showing also that no signal is detected from the Sloan Digital Sky Survey DR 7, we conclude that the spin alignments in galaxy pairs are in principle a unique test of bouncing cDE models.

Lee, Jounghun, E-mail: jounghun@astro.snu.ac.kr [Department of Physics and Astronomy, Seoul National University, Seoul 151-747 (Korea, Republic of)

2012-06-01T23:59:59.000Z

283

Probing Material Reactivity Using X-ray Pair Distribution Function Methods  

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

Material Reactivity Using X-ray Pair Distribution Material Reactivity Using X-ray Pair Distribution Function Methods Karena W. Chapman X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA Understanding how advanced functional materials react and transform, at an atomic scale, is a characterization challenge with many diverse phenomena possible; components with varying particle size, morphology, and microstructure can evolve from multi-atom clusters to multi-million atom crystals. The pair distribution function (PDF) method shows great promise for providing quantitative insight such reactions. Recent advances in experimental methods, have improved the efficiency of X-ray PDF measurements, to allow time-resolved experiments with sufficient resolution to study reactions in solid

284

Spin-aligned neutron-proton pairs in N=Z nuclei  

SciTech Connect (OSTI)

A study is carried out on the role of the aligned neutron-proton pair with angular momentum J=9 and isospin T=0 in the low-energy spectroscopy of the N=Z nuclei {sup 96}Cd, {sup 94}Ag, and {sup 92}Pd. Shell-model wave functions resulting from realistic interactions are analyzed in terms of a variety of two-nucleon pairs corresponding to different choices of their coupled angular momentum J and isospin T. The analysis is performed exactly for four holes ({sup 96}Cd) and carried further for six and eight holes ({sup 94}Ag and {sup 92}Pd) by means of a mapping to an appropriate version of the interacting boson model. The study allows the identification of the strengths and deficiencies of the aligned-pair approximation.

Zerguine, S. [Department of Physics, PRIMALAB Laboratory, University of Batna, Avenue Boukhelouf M El Hadi, 05000 Batna (Algeria); Van Isacker, P. [Grand Accelerateur National d'Ions Lourds, CEA/DSM-CNRS/IN2P3, B.P. 55027, F-14076 Caen Cedex 5 (France)

2011-06-15T23:59:59.000Z

285

Towards Optimal Measurement of Power Spectra I: Minimum Variance Pair Weighting and the Fisher Matrix  

E-Print Network [OSTI]

This is the first of a pair of papers which address the problem of measuring the unredshifted power spectrum in optimal fashion from a survey of galaxies, with arbitrary geometry, for Gaussian or non-Gaussian fluctuations, in real or redshift space. In this first paper, that pair weighting is derived which formally minimizes the expected variance of the unredshifted power spectrum windowed over some arbitrary kernel. The inverse of the covariance matrix of minimum variance estimators of windowed power spectra is the Fisher information matrix, which plays a central role in establishing optimal estimators. Actually computing the minimum variance pair window and the Fisher matrix in a real survey still presents a formidable numerical problem, so here a perturbation series solution is developed. The properties of the Fisher matrix evaluated according to the approximate method suggested here are investigated in more detail in the second paper.

A. J. S. Hamilton

1997-01-04T23:59:59.000Z

286

Top quark pair production cross section using the ATLAS detector at the LHC  

E-Print Network [OSTI]

Measurements of the inclusive top quark pair production cross sections in proton-proton collisions with the ATLAS detector at the Large Hadron Collider are presented. The measurements are performed requiring one or two electrons or muons in the final state. Various experimental techniques are compared. The most accurate result in obtained requiring opposite sign electrons and muons, achieves a precision of a few percent, and is in good agreement with a recent NNLO+NNLL QCD calculation. In addition, a di erential measurement of the top transverse momentum and kinematic properties of the top pair system are presented. This measurement requires one electron or muon in the final state and probes our understanding of top pair production in the TeV regime and is compared to recent Monte Carlo generators and theory calculations.

Theveneaux-Pelzer, Timothee; The ATLAS collaboration

2014-01-01T23:59:59.000Z

287

A CLOSE-PAIR ANALYSIS OF DAMP MERGERS AT INTERMEDIATE REDSHIFTS  

SciTech Connect (OSTI)

We have studied the kinematics of {approx}2800 candidate close-pair galaxies at 0.1 < z < 1.2 identified from the Canada-France-Hawaii Telescope Legacy Survey fields. Spectra of these systems were obtained using spectrometers on the 6.5 m Magellan and 5 m Hale telescopes. These data allow us to constrain the rate of dry mergers at intermediate redshifts and to test the 'hot halo' model for quenching of star formation. Using virial radii estimated from the correlation between dynamical and stellar masses published by Leauthaud et al., we find that around 1/5 of our candidate pairs are likely to share a common dark matter halo (our metric for close physical association). These pairs are divided into red-red, blue-red, and blue-blue systems using the rest-frame colors classification method introduced in Chou et al.. Galaxies classified as red in our sample have very low star formation rates, but they need not be totally quiescent, and hence we refer to them as 'damp', rather than 'dry', systems. After correcting for known selection effects, the fraction of blue-blue pairs is significantly greater than that of red-red and blue-red pairs. Red-red pairs are almost entirely absent from our sample, suggesting that damp mergers are rare at z {approx} 0.5. Our data support models with a short merging timescale (<0.5 Gyr) in which star formation is enhanced in the early phase of mergers, but quenched in the late phase. Hot halo models may explain this behavior, but only if virial shocks that heat gas are inefficient until major mergers are nearly complete.

Chou, Richard C. Y.; Abraham, Roberto G. [Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON M5S 3H4 (Canada); Bridge, Carrie R., E-mail: chou@astro.utoronto.ca, E-mail: abraham@astro.utoronto.ca, E-mail: bridge@astro.caltech.edu [Department of Astronomy, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States)

2012-12-01T23:59:59.000Z

288

Conversion of relativistic pair energy into radiation in the jets of active galactic nuclei  

E-Print Network [OSTI]

It is generally accepted that relativistic jet outflows power the nonthermal emission from active galactic nuclei (AGN). The composition of these jets -- leptonic versus hadronic -- is still under debate. We investigate the microphysical details of the conversion process of the kinetic energy in collimated relativistic pair outflows into radiation through interactions with the ambient interstellar medium. Viewed from the coordinate system comoving with the pair outflow, the interstellar protons and electrons represent a proton-electron beam propagating with relativistic speed in the pair plasma. We demonstrate that the beam excites both electrostatic and low-frequency magnetohydrodynamic Alfven-type waves via a two-stream instability in the pair background plasma, and we calculate the time evolution of the distribution functions of the beam particles and the generated plasma wave turbulence power spectra. For standard AGN jet outflow and environment parameters we show that the initial beam distributions of interstellar protons and electrons quickly relax to plateau-distributions in parallel momentum, transferring thereby one-half of the initial energy density of the beam particles to electric field fluctuations of the generated electrostatic turbulence. On considerably longer time scales, the plateaued interstellar electrons and protons will isotropise by their self-generated transverse turbulence and thus be picked-up in the outflow pair plasma. These longer time scales are also characteristic for the development of transverse hydromagnetic turbulence from the plateaued electrons and protons. This hydromagnetic turbulence upstream and downstream is crucial for diffusive shock acceleration to operate at external or internal shocks associated with pair outflows.

R. Schlickeiser; R. Vainio; M. Boettcher; I. Lerche; M. Pohl; C. Schuster

2002-07-02T23:59:59.000Z

289

Sector 27 35 Prod Schedule 11_3_13 Rev i.xlsx  

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

Rev i date 11-13-13 Rev i date 11-13-13 Production Schedule For Sector 35 & 27 Contract No. 3G-30001, Rev F, 8/8/13 RE Hutch Number Eng Assigned Submittal Drawings Sent to Argonne Submittal Drawings Approved Fabrication Drawings Complete, Lead and Steel Ordered Steel and Lead Received, Fabrication Underway Fabrication Complete- Panels Ship on Dates Shown Panels Arrive at Argonne Field Installation of Panels Complete Field Installation of Roof, Floor Trims,Handr ail Painting Complete Electrical, PSS and Piping Complete Estimated Beneficial Occupancy from Orginal Contract Date 35-ID-B Troy M Complete Complete Complete Complete Complete Complete Complete Complete Complete Complete Complete 35-ID-C Jeff H Complete Complete Complete Complete Complete Complete Complete Complete Complete Complete Complete 35-ID-D

290

PROD. TYPE: COM PP:1-17 (col.fig.: nil) CBM856 MODE+  

E-Print Network [OSTI]

a testing dataset generated17 with the help of nuclear radiologists, performance of the instantiated KBANN nuclear radiologists as a diagnosis procedure for PE, are conveniently defined in terms of13 a set of if profiled on the same dataset for the purpose of comparison with that of the KBANN. Simulation results

Serpen, Gursel

291

http://cemp.dri.edu/cgi-bin/cemp_stations.pl?stn=tono&prod=11  

National Nuclear Security Administration (NNSA)

Station Wind Rose Tonopah Nevada Earliest available data: September 1999. Latest available data: May 2011. Check Data Inventory for data availability between earliest and latest...

292

All Warehouses Sorted By Part Code Texas Tech University -Physical Plant PROD Physical Plant  

E-Print Network [OSTI]

: (HENRY 430) 010.14.01001.9-CW Adhesive-Insulation Foam. CW Everything A3-315 7 11.5024 80.5168 Mfr

Gelfond, Michael

293

http://cemp.dri.edu/cgi-bin/cemp_stations.pl?stn=tono&prod=11  

National Nuclear Security Administration (NNSA)

the CEMP to provide to the public accurate, near real-time monitoring data through this web site. However, it should be noted that these data are provisional and therefore may be...

294

Number-conserving approach to the pairing problem: Application to Kr and Sn isotopic chains  

Science Journals Connector (OSTI)

The recently proposed symmetry-conserving energy density functional approach [G. Hupin, D. Lacroix, and M. Bender, Phys. Rev. C 84, 014309 (2011)] is applied to perform variation after projection onto the good particle number using the Skyrme interaction, including density-dependent terms. We propose a simplification to reduce the numerical effort to perform the variation. We present a systematic study of the Kr and Sn isotopic chains. This approach leads to nonzero pairing in magic nuclei and a global enhancement of the pairing gap compared to the original theory, which breaks particle number symmetry.

Guillaume Hupin and Denis Lacroix

2012-08-17T23:59:59.000Z

295

Determination of the interaction potential from the pair distribution function: An inverse Monte Carlo technique  

Science Journals Connector (OSTI)

In this work we present an efficient procedure to evaluate effective pair potentials compatible with experimental distribution functions using a Monte Carlo simulation scheme. Using computer simulation results for the pair distribution functions, we have applied the method to a Lennard-Jones fluid and to a model of liquid aluminum. In both cases the procedure was able to recover with high accuracy the actual interaction potential of the systems. Moreover, the procedure can easily incorporate additional information, for instance, thermodynamic properties, in order to improve the reliability of the results.

N. G. Almarza and E. Lomba

2003-07-03T23:59:59.000Z

296

First-Order Transition from Superfluid to Bose-Metal State in Systems with Resonant Pairing  

Science Journals Connector (OSTI)

Systems showing resonant superfluidity, driven by an exchange coupling of strength g between uncorrelated pairs of itinerant fermions and tightly bound ones, undergo a first-order phase transition as g increases beyond some critical value gc. The superfluid phase for g?gc is characterized by a gap in the fermionic single-particle spectrum and an acoustic sound-wave-like collective mode of the bosonic resonating fermion pairs inside this gap. For g>gc this state gives way to a phase-uncorrelated bosonic liquid with a q2 spectrum.

T. Stauber and J. Ranninger

2007-07-26T23:59:59.000Z

297

Neutrinoless Double Beta Decay within QRPA with Proton-Neutron Pairing  

E-Print Network [OSTI]

We have investigated the role of proton-neutron pairing in the context of the Quasiparticle Random Phase approximation formalism. This way the neutrinoless double beta decay matrix elements of the experimentally interesting A= 48, 76, 82, 96, 100, 116, 128, 130 and 136 systems have been calculated. We have found that the inclusion of proton-neutron pairing influences the neutrinoless double beta decay rates significantly, in all cases allowing for larger values of the expectation value of light neutrino masses. Using the best presently available experimental limits on the half life-time of neutrinoless double beta decay we have extracted the limits on lepton number violating parameters.

G. Pantis; F. Simkovic; J. D. Vergados; Amand Faessler

1996-12-14T23:59:59.000Z

298

Field-induced decay of quantum vacuum: visualizing pair production in a classical photonic system  

E-Print Network [OSTI]

The phenomenon of vacuum decay, i.e. electron-positron pair production due to the instability of the quantum electrodynamics vacuum in an external field, is a remarkable prediction of Dirac theory whose experimental observation is still lacking. Here a classic wave optics analogue of vacuum decay, based on light propagation in curved waveguide superlattices, is proposed. Our photonic analogue enables a simple and experimentally-accessible visualization in space of the process of pair production as break up of an initially negative-energy Gaussian wave packet, representing an electron in the Dirac sea, under the influence of an oscillating electric field.

Stefano Longhi

2010-09-01T23:59:59.000Z

299

Reduced effect of impurities on the universal pairing scale in the cuprates  

E-Print Network [OSTI]

in the overdoped and op- timally doped cuprates. At such dopings correlations are rela- tively strong but not enough so to break a large normal-state Fermi surface #1;FS#2; into the hole and electron pockets. Recently, Abanov et al.1 analyzed the pairing...;1#2;, which are mostly relevant to the cuprates, T #1; goes through a shallow maxi- mum and is approximately 0.02v f /a. The same pairing scale was obtained in FLEX calculations for the Hubbard model,2 in two-particle self-consistent calculations,3...

Vorontsov, A. B.; Abanov, Artem; Vavilov, M. G.; Chubukov, A. V.

2010-01-01T23:59:59.000Z

300

Equal-spin pairing state of superfluid He3 in aerogel  

Science Journals Connector (OSTI)

The equal-spin pairing state, the so-called A-like phase, of superfluid He3 in aerogels is studied theoretically in the Ginzburg-Landau region by examining thermodynamics, and the resulting equilibrium phase diagram is mapped out. We find that the ABM pairing state with presumably quasi-long-ranged superfluid order has a lower free energy than the planar and robust states and is the best candidate of the A-like phase with a strange lowering of the polycritical point observed experimentally.

Kazushi Aoyama and Ryusuke Ikeda

2005-07-28T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Hall coefficient and angle-resolved photoemission in systems with strong pair fluctuations  

Science Journals Connector (OSTI)

We examine the normal-state temperature and doping dependence of the Hall coefficient in the context of a pair-fluctuation scenario, based on a model where itinerant electrons are hybridized with localized electron pairs via a charge exchange term. We show that an anomalous behavior of the Hall effect, qualitatively similar to that observed in high-Tc superconductors, can be attributed to the non-Fermi-liquid properties of the single-particle spectral function that exhibits pseudogap features. Our calculations are based on a dynamical mean-field procedure that relates the transport coefficients to the single-particle spectral function in an exact way.

Alfonso Romano and Julius Ranninger

2000-08-01T23:59:59.000Z

302

Recent results from HADES on electron pair production in relativistic heavy-ion collisions  

E-Print Network [OSTI]

Systematic investigations of dilepton production are performed at the SIS accelerator of GSI with the HADES spectrometer. The goal of this program is a detailed understanding of di-electron emission from hadronic systems at moderate temperatures and densities. New results obtained in HADES experiments focussing on electron pair production in elementary collisions are reported here. They pave the way to a better understanding of the origin of the so-called excess pairs earlier on observed in heavy-ion collisions by the DLS collaboration and lately confirmed in two measurements of the HADES collaboration using C+C and Ar+KCl collisions. Results of these studies are discussed.

The HADES Collaboration; T. Galatyuk; G. Agakishiev; A. Balanda; D. Belver; A. V. Belyaev; A. Blanco; M. Bhmer; J. L. Boyard; P. Braun-Munzinger; P. Cabanelas; E. Castro; S. Chernenko; T. Christ; M. Destefanis; J. Daz; F. Dohrmann; A. Dybczak; L. Fabbietti; O. V. Fateev; P. Finocchiaro; P. Fonte; J. Friese; I. Frhlich; J. A. Garzn; R. Gernhuser; A. Gil; C. Gilardi; M. Golubeva; D. Gonzlez-Daz; F. Guber; T. Hennino; R. Holzmann; I. Iori; A. Ivashkin; M. Jurkovic; B. Kmpfer; T. Karavicheva; D. Kirschner; I. Koenig; W. Koenig; B. W. Kolb; R. Kotte; F. Krizek; R. Krcken; W. Khn; A. Kugler; A. Kurepin; S. Lang; J. S. Lange; K. Lapidus; T. Liu; L. Lopes; M. Lorenz; L. Maier; A. Mangiarotti; J. Markert; V. Metag; B. Michalska; J. Michel; E. Morinire; J. Mousa; C. Mntz; L. Naumann; J. Otwinowski; Y. C. Pachmayer; M. Palka; Y. Parpottas; V. Pechenov; O. Pechenova; J. Pietraszko; W. Przygoda; B. Ramstein; A. Reshetin; A. Rustamov; A. Sadovsky; P. Salabura; A. Schmah; E. Schwab; Yu. G. Sobolev; S. Spataro; B. Spruck; H. Strbele; J. Stroth; C. Sturm; M. Sudol; A. Tarantola; K. Teilab; P. Tlusty; M. Traxler; R. Trebacz; H. Tsertos; V. Wagner; M. Weber; M. Wisniowski; T. Wojcik; J. Wstenfeld; S. Yurevich; Y. V. Zanevsky; P. Zhou

2009-11-12T23:59:59.000Z

303

Recent results from HADES on electron pair production in relativistic heavy-ion collisions  

E-Print Network [OSTI]

Systematic investigations of dilepton production are performed at the SIS accelerator of GSI with the HADES spectrometer. The goal of this program is a detailed understanding of di-electron emission from hadronic systems at moderate temperatures and densities. New results obtained in HADES experiments focussing on electron pair production in elementary collisions are reported here. They pave the way to a better understanding of the origin of the so-called excess pairs earlier on observed in heavy-ion collisions by the DLS collaboration and lately confirmed in two measurements of the HADES collaboration using C+C and Ar+KCl collisions. Results of these studies are discussed.

Galatyuk, T; Balanda, A; Belver, D; Belyaev, A V; Blanco, A; Bhmer, M; Boyard, J L; Braun-Munzinger, P; Cabanelas, P; Castro, E; Chernenko, S; Christ, T; Destefanis, M; Daz, J; Dohrmann, F; Dybczak, A; Fabbietti, L; Fateev, O V; Finocchiaro, P; Fonte, P; Friese, J; Frhlich, I; Garzn, J A; Gernhuser, R; Gil, A; Gilardi, C; Golubeva, M; Gonzlez-Daz, D; Guber, F; Hennino, T; Holzmann, R; Iori, I; Ivashkin, A; Jurkovic, M; Kmpfer, B; Karavicheva, T; Kirschner, D; Koenig, I; Koenig, W; Kolb, B W; Kotte, R; Krizek, F; Krcken, R; Khn, W; Kugler, A; Kurepin, A; Lang, S; Lange, J S; Lapidus, K; Liu, T; Lopes, L; Lorenz, M; Maier, L; Mangiarotti, A; Markert, J; Metag, V; Michalska, B; Michel, J; Morinire, E; Mousa, J; Mntz, C; Naumann, L; Otwinowski, J; Pachmayer, Y C; Palka, M; Parpottas, Y; Pechenov, V; Pechenova, O; Pietraszko, J; Przygoda, W; Ramstein, B; Reshetin, A; Rustamov, A; Sadovsky, A; Salabura, P; Schmah, A; Schwab, E; Sobolev, Yu G; Spataro, S; Spruck, B; Strbele, H; Stroth, J; Sturm, C; Sudol, M; Tarantola, A; Teilab, K; Tlusty, P; Traxler, M; Trebacz, R; Tsertos, H; Wagner, V; Weber, M; Wisniowski, M; Wojcik, T; Wstenfeld, J; Yurevich, S; Zanevsky, Y V; Zhou, P

2009-01-01T23:59:59.000Z

304

Identification of Parton Pairs in a Dijet Event and Investigation of Its Effects on Dijet Resonance Search  

E-Print Network [OSTI]

Being able to distinguish parton pair type in a dijet event could significantly improve the search for new particles that are predicted by the theories beyond the Standard Model at the Large Hadron Collider. To explore whether parton pair types manifesting themselves as a dijet event could be distinguished on an event-by-event basis, I performed a simulation based study considering observable jet variables. I found that using a multivariate approach can filter out about 80% of the other parton pairs while keeping more than half of the quark-quark or gluon-gluon parton pairs in an inclusive QCD dijet distribution. The effects of event-by-event parton pair tagging for dijet resonance searches were also investigated and I found that improvement on signal significance after applying parton pair tagging can reach up to 4 times for gluon-gluon resonances.

Sertac Ozturk

2014-10-30T23:59:59.000Z

305

reliable starting vectors for curve calculation. So far we did not try any algorithm to handle these patch pairs; we just kept their diameter " smaller than the display precision and treated  

E-Print Network [OSTI]

. small pairs disjoint pairs input input Resulting curve pieces Waste- basket Resulting small pairs Pairs in quadtrees and should exchange \\bag data" only if necessary for load balancing, using advanced \\hot potato

Schaback, Robert

306

Hot spots and transition from d-wave to another pairing symmetry in the electron-doped cuprate superconductors  

Science Journals Connector (OSTI)

We present a simple theoretical explanation for a transition from d-wave to another superconducting pairing observed in the electron-doped cuprates. The dx2-y2 pairing potential ?, which has the maximal magnitude and opposite signs at the hot spots on the Fermi surface, becomes suppressed with the increase of electron doping, because the hot spots approach the Brillouin zone diagonals, where ? vanishes. Then, dx2-y2 pairing is replaced by either singlet s-wave or triplet p-wave pairing. We argue in favor of the latter and propose experiments to uncover it.

V. A. Khodel; Victor M. Yakovenko; M. V. Zverev; Haeyong Kang

2004-04-02T23:59:59.000Z

307

A Distributed Scheme for Efficient Pair-wise Comparison of Complete Genomes  

E-Print Network [OSTI]

#12;48 A Distributed Scheme for Efficient Pair-wise Comparison of Complete Genomes Valerian S}@mcs.kent.edu 1 Corresponding author Abstract The comparisons of newly sequenced genomes against a genome and a CORBA-based implementation to compare and align gene sequences in large complete genomes, using multiple

Bansal, Arvind K.

308

Identifying interacting pairs of sites in infinite range Ising Antonio Galves  

E-Print Network [OSTI]

Identifying interacting pairs of sites in infinite range Ising models Antonio Galves , Enza Orlandi and Daniel Yasumasa Takahashi June 23, 2010 Abstract We consider Ising models (pairwise interaction Gibbs of interacting sites from a finite sample of independent realizations of the Ising model. The sample contains

Orlandi, Enza

309

TRANSIT TIMING VARIATION OF NEAR-RESONANCE PLANETARY PAIRS: CONFIRMATION OF 12 MULTIPLE-PLANET SYSTEMS  

SciTech Connect (OSTI)

We extract transit timing variation (TTV) signals for 12 pairs of transiting planet candidates that are near first-order mean motion resonances (MMR), using publicly available Kepler light curves (Q0-Q14). These pairs show significant sinusoidal TTVs with theoretically predicted periods, which demonstrate these planet candidates are orbiting and interacting in the same system. Although individual masses cannot be accurately extracted based only on TTVs because of the well-known degeneracy between mass and eccentricity, TTV phases and amplitudes can still place upper limits on the masses of the candidates, confirming their planetary nature. Furthermore, the mass ratios of these planet pairs can be relatively tightly constrained using these TTVs. The planetary pair in KOI 880 seems to have particularly high mass and density ratios, which might indicate very different internal compositions of these two planets. Some of these newly confirmed planets are also near MMR with other candidates in the system, forming unique resonance chains (e.g., KOI 500)

Xie, Ji-Wei, E-mail: xiejiwei@gmail.com, E-mail: jwxie@astro.utoronto.ca [Department of Astronomy and Key Laboratory of Modern Astronomy and Astrophysics in Ministry of Education, Nanjing University, Nanjing 210093 (China)

2013-10-01T23:59:59.000Z

310

A Possible Mechanism of Direct Production of Muon Pairs at High Energies  

Science Journals Connector (OSTI)

......significant fraction of cosmic ray muons with energies greater than several TeVis produced...separation much greater than twice the muon rest energy, the probability of muon pair...meson produc- tion by very high energy muons.7) It should be noted that......

Satio Hayakawa; Ken Kikuchi

1969-02-01T23:59:59.000Z

311

Pair-copula based mixture models and their application in clustering  

Science Journals Connector (OSTI)

Finite mixtures are often used to perform model based clustering of multivariate data sets. In real life applications, such data may exhibit complex nonlinear form of dependence among the variables. Also, the individual variables (margins) may follow ... Keywords: Clustering, D-vine, Mixture models, Pair-copula construction

Anandarup Roy; Swapan K. Parui

2014-04-01T23:59:59.000Z

312

Superfluid Local Density Approximation: A Density Functional Theory Approach to the Nuclear Pairing Problem  

E-Print Network [OSTI]

I describe the foundation of a Density Functional Theory approach to include pairing correlations, which was applied to a variety of systems ranging from dilute fermions, to neutron stars and finite nuclei. Ground state properties as well as properties of excited states and time-dependent phenomena can be achieved in this manner within a formalism based on microscopic input.

Aurel Bulgac

2012-04-10T23:59:59.000Z

313

Tuning Smart Microgel Swelling and Responsive Behavior through Strong and Weak Polyelectrolyte Pair Assembly  

E-Print Network [OSTI]

The layer-by-layer (LbL) assembly of polyelectrolyte pairs on temperature and pH-sensitive cross-linked poly(N-isopropylacrylamide)-co-(methacrylic acid), poly(NIPAAm-co-MAA), microgels enabled a fine-tuning of the gel ...

Costa, Eunice

314

Imidazopyridine/Pyrrole and Hydroxybenzimidazole/Pyrrole Pairs for DNA Minor Groove Recognition  

E-Print Network [OSTI]

to aberrant gene expression and the ability to reprogram transcription in a cell by chemical methods could of the pyrrole ring Py of the natural products netropsin and distamycin A which bind in the minor groove of DNA.3 Watson- Crick base pairs are modulated by specific hydrogen-bonds and shape complementarity. For example

Dervan, Peter B.

315

Cooper pair transport and Coulomb blockade in one dimensional Josephson junction arrays  

E-Print Network [OSTI]

Cooper pair transport and Coulomb blockade in one dimensional Josephson junction arrays Peter š?ogskoletryckeriet, Stockholm, 2000 #12; Abstract One dimensional Josephson junction arrays have been fabricated, measured small capacitance Josephson junction is described using a Serial Resistive and Inductive Junction (SRLJ

Haviland, David

316

Exciton Energy Transfer in Pairs of Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

Exciton Energy Transfer in Pairs of Single-Walled Carbon Nanotubes Huihong Qian, Carsten Georgi­3 At nanoscale distances, energy transfer from large to small band gap nanotubes is expected to occur to be quenched in bundles.7­10 Very recently, resonant exciton energy transfer between semiconducting nanotubes

Novotny, Lukas

317

Effective Polynomial Families for Generating More Pairing-Friendly Elliptic Curves  

E-Print Network [OSTI]

1 Effective Polynomial Families for Generating More Pairing-Friendly Elliptic Curves Pu Duan, Shi University Singapore dp@pmail.ntu.edu.sg cuishi@pmail.ntu.edu.sg ecwchan@ntu.edu.sg Abstract Finding suitable without restrictions on embedding degree k and cofactor h. We propose the idea of effective polynomial

318

Special Polynomial Families for Generating More Suitable Elliptic Curves for Pairing-Based Cryptosystems  

E-Print Network [OSTI]

Technological University Singapore dp@pmail.ntu.edu.sg cuishi@pmail.ntu.edu.sg ecwchan@ntu.edu.sg Abstract of effective polynomial families of pairing-friendly elliptic curves. For larger values of k, Brezing and Weng enough to make 4q ­ t2 small as to produce effective values of D. Barreto and Naehrig [17] generated non

319

Generation and Control of Chains of Entangled Atom-Ion Pairs with Quantum Light  

SciTech Connect (OSTI)

Coherent control using quantum light incident upon molecules in an optical lattice is shown to give rise to a direct way of writing arbitrary sequences of entangled atom-ion pairs. There is no evident limitation on the length of the word (i.e., the number of qbits) that can be formed.

Shapiro, Moshe [Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3 (Canada); Department of Chemical Physics, Weizmann Institute, Rehovot 76100 (Israel); Brumer, Paul [Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6 (Canada)

2011-04-15T23:59:59.000Z

320

OPPENHEIM CONJECTURE FOR PAIRS CONSISTING OF A LINEAR FORM AND A QUADRATIC FORM  

E-Print Network [OSTI]

OPPENHEIM CONJECTURE FOR PAIRS CONSISTING OF A LINEAR FORM AND A QUADRATIC FORM ALEXANDER GORODNIK. As a generalization of the Oppenheim conjecture, we prove that the set {(Q(x), L(x)) : x Zd } is dense in R2 provided of author's PhD thesis at Ohio State University done under supervision of Prof. Bergelson. 1 #12;OPPENHEIM

Gorodnik, Alexander

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

THE TRUE COST OF PAIR PROGRAMMING: DEVELOPMENT OF A COMPREHENSIVE MODEL AND TEST  

E-Print Network [OSTI]

teams at Symantec produced cleaner test classes and better coverage tests through the pair- programming process (Morales, 2002). Jensen, a consultant for the Software Technology Support Center, Hill Air Force Base, reported an error rate of 0.001 in a...

Sun, Wenying

2011-09-19T23:59:59.000Z

322

Living Polymers: A Tool in Studies of Ions and Ion-Pairs  

Science Journals Connector (OSTI)

...a loose ion-pair was demonstrated by nuclear magnetic resonance spectroscopy (30...service or performs an old task with reduced cost. The burden of this article is to indicate...for system use because of high initial cost, short operating lifetime, and burden-some...

M. Szwarc

1970-10-02T23:59:59.000Z

323

Secure Device Pairing Based on a Visual Channel: Design and Usability Study  

E-Print Network [OSTI]

to impersonate one or both of these devices in the process. The adversary is assumed to be capable of listening1 Secure Device Pairing Based on a Visual Channel: Design and Usability Study Nitesh Saxena" is the establishment of authenticated key agreement between two devices over a wireless channel. Such devices are ad

Saxena, Nitesh

324

Invariant mass distributions for heavy quark-antiquark pairs in deep inelastic electroproduction  

E-Print Network [OSTI]

We have completed the ${\\cal O}(\\alpha_s)$ QCD corrections to exclusive heavy quark-antiquark distributions in deep inelastic electroproduction and present here the differential distributions in the masses of charm-anticharm and bottom-antibottom pairs at the electron-proton collider HERA.

B. W. Harris; J. Smith

1995-02-15T23:59:59.000Z

325

Experimental evidence that extra-pair mating drives asymmetrical introgression of a sexual trait  

Science Journals Connector (OSTI)

...manipulation experiment using Kruskal-Wallis mean comparisons of number of...number of within-pair young (Kruskal-Wallis H = 3.7, d.f. = 2, p...proportion of males cuckolded (Kruskal-Wallis H = 2.91, d.f. = 2, p...

2013-01-01T23:59:59.000Z

326

Parity violating observables in radiative neutrino pair emission from metastable atoms  

E-Print Network [OSTI]

We report on a possibility of measuring parity violating effects in radiative neutrino pair emission from metastable atoms; asymmetric angular distribution of emitted photons from oriented atoms and emergent circular polarization. Their observation, along with the continuous photon energy spectrum which has 6 thresholds, may be interpreted as events being a combined weak and QED process, emission of $\\gamma \

M. Yoshimura; A. Fukumi; N. Sasao; T. Yamaguchi

2009-07-03T23:59:59.000Z

327

Behaviour 149 (2012) 407440 brill.nl/beh Behavioral characteristics of pair bonding in the black  

E-Print Network [OSTI]

and Jeffrey A. French c,d a Department of Psychology, University of Tromsø, Tromsø, Norway b Department and an- other is between members of a breeding pair (reviewed in Insel et al., 1995; Broad et al., 2006­female relationships, display intruder- directed aggression (Epple, 1977, 1978; French & Snowdon, 1981; French

French, Jeffrey A.

328

Gap anisotropy and universal pairing scale in a spin-fluctuation model of cuprate superconductors  

E-Print Network [OSTI]

of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA 3Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA #1;Received 23 October 2008; published 19 December 2008#2; We consider the evolution of dx2?y2 pairing...

Abanov, Artem; Chubukov, A. V.; Norman, M. R.

2008-01-01T23:59:59.000Z

329

Search for the associated production of the Higgs boson with a top-quark pair  

E-Print Network [OSTI]

A search for the standard model Higgs boson produced in association with a top-quark pair (ttH) is presented, using data samples corresponding to integrated luminosities of up to 5.1 fb?1 and 19.7 fb?1 collected in pp ...

CMS Collaboration

330

PAIRED ACCELERATED FRAMES: THE PERFECT INTERFEROMETER WITH EVERYWHERE SMOOTH WAVE AMPLITUDES \\Lambda  

E-Print Network [OSTI]

PAIRED ACCELERATED FRAMES: THE PERFECT INTERFEROMETER WITH EVERYWHERE SMOOTH WAVE AMPLITUDES In the absence of gravitation the distinguishing feature of any linearly and uniformly accelerated frame event horizons relative to each of the two frames. This acceleration­ induced partitioning of spacetime

Gerlach, Ulrich

331

Empirical Validation of Test-Driven Pair Programming in Game Development Shaochun Xu  

E-Print Network [OSTI]

competition of software market, and increasing complexities of software. This also happens in game development. In order to solve those problems, agile software development processes, like Scrum, FDD, ExtremeEmpirical Validation of Test-Driven Pair Programming in Game Development Shaochun Xu Department

332

Three-party simultaneous quantum secure direct communication scheme with EPR pairs  

E-Print Network [OSTI]

We present a scheme for three-party simultaneous quantum secure direct communication by using EPR pairs. In the scheme, three legitimate parties can simultaneously exchange their secret messages. It is also proved to be secure against the intercept-and-resend attack, the disturbance attack and the entangled-and-measure attack.

Mei-Yu Wang; Feng-Li Yan

2007-01-09T23:59:59.000Z

333

Synchrotron and inverse-Compton emissions from pairs formed in GRB afterglows (analytical treatment)  

E-Print Network [OSTI]

We calculate the synchrotron and inverse-Compton emissions from pairs formed in GRB afterglows from high-energy photons (above 100 MeV), assuming a power-law photon spectrum C_nu ~ nu^{-2} and considering only the pairs generated from primary high-energy photons. The essential properties of these pairs (number, minimal energy, cooling energy, distribution with energy) and of their emission (peak flux, spectral breaks, spectral slope) are set by the observables GeV fluence Phi (t) = Ft and spectrum, and by the Lorentz factor Gamma and magnetic field B of the source of high-energy photons, at observer-time t. Optical and X-ray pseudo--light-curves F_nu (Gamma) are calculated for given B; proper synchrotron self-Compton light-curves are calculated by setting the dynamics Gamma(t) of the high-energy photons source to be that of a decelerating, relativistic shock. It is found that the emission from pairs can accommodate the flux and decays of the optical flashes measured during the prompt (GRB) phase and of the fa...

Panaitescu, A

2014-01-01T23:59:59.000Z

334

Symmetry-restoring treatment of the pairing Hamiltonian in the quasiparticle representation  

Science Journals Connector (OSTI)

In analogy with a symmetry-restoring treatment of rotational invariance for deformed Hamiltonians, we discuss the case of a separable monopole pairing Hamiltonian in the quasiparticle basis. The results are compared to estimates of a conventional treatment based on the quasiparticle random phase approximation.

O. Civitarese and M. C. Licciardo

1988-08-01T23:59:59.000Z

335

Donor-vacancy pairs in irradiated n-Ge: A searching look at the problem  

SciTech Connect (OSTI)

The present situation concerning the identification of vacancy-donor pairs in irradiated n-Ge is discussed. The challenging points are the energy states of these defects deduced from DLTS spectra. Hall effect data seem to be at variance with some important conclusions drawn from DLTS measurements. Critical points of the radiation-produced defect modeling in n-Ge are highlighted.

Emtsev, Vadim; Oganesyan, Gagik [IoffePhysicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ulitsa 26, 194021 St. Petersburg (Russian Federation)

2014-02-21T23:59:59.000Z

336

Neutron localization induced by the pairing field in inhomogeneous neutron matter  

Science Journals Connector (OSTI)

It is shown that in an inhomogeneous neutron matter the pairing field bounds neutrons around the Fermi level leading to the formation of localized Andreev states. In the case of the inner crust of neutron stars the localization length is determined as a function of nuclear density.

Piotr Magierski

2007-01-09T23:59:59.000Z

337

AER EAR: A Matched Silicon Cochlea Pair with Address Event Representation Interface  

E-Print Network [OSTI]

AER EAR: A Matched Silicon Cochlea Pair with Address Event Representation Interface André van, the Address Event Representation (AER) interface has become the standard interface protocol in recent years. The AER approach allows us to model biological systems using discrete level (spikes) and continuous

Liu, Shih-Chii

338

Anomalous pairing vibration in neutron-rich Sn isotopes beyond the N=82 magic number  

E-Print Network [OSTI]

Two-neutron transfer associated with the pair correlation in superfluid neutron-rich nuclei is studied with focus on low-lying $0^+$ states in Sn isotopes beyond the N=82 magic number. We describe microscopically the two-neutron addition and removal transitions by means of the Skyrme-Hartree-Fock-Bogoliubov mean-field model and the continuum quasiparticle random phase approximation formulated in the coordinate space representation. It is found that the pair transfer strength for the transitions between the ground states becomes significantly large for the isotopes with $A \\ge 140$, reflecting very small neutron separation energy and long tails of the weakly bound $3p$ orbits. In $^{132-140}$Sn, a peculiar feature of the pair transfer is seen in transitions to low-lying excited $0^+$ states. They can be regarded as a novel kind of pair vibrational mode which is characterized by an anomalously long tail of the transition density extending to far outside of the nuclear surface, and a large strength comparable to that of the ground-state transitions. The presence of the weakly bound neutron orbits plays a central role for these anomalous behaviors.

Hirotaka Shimoyama; Masayuki Matsuo

2011-06-09T23:59:59.000Z

339

Search for pair production of excited top quarks in the lepton + jets final state  

E-Print Network [OSTI]

A search is performed for pair-produced spin-3/2 excited top quarks (t[superscript ?][ over t][superscript ?]), each decaying to a top quark and a gluon. The search uses data collected with the CMS detector from pp ...

Apyan, Aram

340

Polarization entangled photon-pair source based on quantum nonlinear photonics and interferometry  

E-Print Network [OSTI]

demonstration and long-distance distribution of the paired photons 10 B. Entanglement analysis for the |- state capabablities [2]. Related networking protocols, such as entanglement based quantum relay operations, are employed as a means for extending the distance of quantum communication links [3, 4]. On the other hand

Boyer, Edmond

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Digital Photography with Flash and No-Flash Image Pairs Georg Petschnigg Maneesh Agrawala Hugues Hoppe  

E-Print Network [OSTI]

: This candlelit setting from the wine cave of a castle is difficult to photograph due to its low light nature pairs. Our applications include denoising and detail transfer (to merge the ambient qualities of the no that are of higher quality than either of the originals. Keywords: Noise removal, detail transfer, sharpening, image

Majumder, Aditi

342

The Contribution of Electron-Positron Pair Production to the Vacuum Energy  

E-Print Network [OSTI]

The vacuum, defined as the state where no particles can be observed, is interpreted here to imply that the lifetime of the e-p pair should be equal to the Planck time. Concerning the title's subject, a perfect theory would require that the true vacuum expectation value of the operator associated with pair production, be compatible with the normalization of the true vacuum. At present, a calculation of the vacuum energy based on Feynman diagrams reveals a serious difficulty: if only second order terms of the S-matrix are retained, and because there are no external lines, it follows that the space-time integrations over the coordinates, involved in the calculation of the vacuum expectation value of the S-matrix, give rise to two identical delta functions: the amplitude is thus proportional to the space-time volume of integration, L4. The square of the amplitude defies then any physically meaningful interpretation. One is faced here with two evils: modify the interaction Lagrangian so that the amplitude becomes proportional to L2, or abstain from any calculation. It is felt that the first one is the lesser evil. If the square of the amplitude is proportional to L4 (instead of L8), it, can be interpreted as being the number, N, of events (pairs created), in the volume of integration. In the calculations for N it was assumed that the integral over momentums (rescaled to be dimensionless) was of the order unity, and that processes with small virtual photon-energy are predominant. The pairs' contribution to the vacuum density is then given by the mass of the particles multiplied, by the number of events per unit volume and unit time, as well as, by the pairs lifetime. It is found that the calculated value for the vacuum density is in surprisingly good agreement with the observations.

Bernard R. Durney

2012-08-22T23:59:59.000Z

343

Fosmid Cre-LoxP Inverse PCR Paired-End (Fosmid CLIP-PE), a Novel Method for Constructing Fosmid Pair-End Library (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

ScienceCinema (OSTI)

Ze Peng from DOE JGI presents "Fosmid Cre-LoxP Inverse PCR Paired-End (Fosmid CLIP-PE), a Novel Method for Constructing Fosmid Pair-End Library" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Peng, Ze [DOE JGI

2013-01-25T23:59:59.000Z

344

Fosmid Cre-LoxP Inverse PCR Paired-End (Fosmid CLIP-PE), a Novel Method for Constructing Fosmid Pair-End Library (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

SciTech Connect (OSTI)

Ze Peng from DOE JGI presents "Fosmid Cre-LoxP Inverse PCR Paired-End (Fosmid CLIP-PE), a Novel Method for Constructing Fosmid Pair-End Library" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Peng, Ze [DOE JGI] [DOE JGI

2012-06-01T23:59:59.000Z

345

NOETHERIAN BANACH JORDAN PAIRS N. Boudi*, A. Fern'andez L'opezy, E. Garc'ia  

E-Print Network [OSTI]

NOETHERIAN BANACH JORDAN PAIRS N. Boudi*, A. Fern'andez L by Benslimane and Boudi [BeB1] to the alternative case. For a Jordan algebra J or a Jordan pair V a* *nd Boudi [BeB2] proved that a complex Noetherian Banach Jordan algebra is finite dimensional

346

Strongly prime Jordan pairs with nonzero socle Antonio Fern'andez L'opez and Maribel Toc'on Barroso  

E-Print Network [OSTI]

Strongly prime Jordan pairs with nonzero socle Antonio Fern'andez L'opez and Maribel Abstract A free-characteristic description of strongly prime Jordan pairs with minimal inner and Racine [33] for Jordan algebras and extended later by Fern'andez et al. [18] to Jordan triples

347

Quantum Dissociation of a Vortex-Antivortex Pair in a Long Josephson Junction M.V. Fistul,1  

E-Print Network [OSTI]

Quantum Dissociation of a Vortex-Antivortex Pair in a Long Josephson Junction M.V. Fistul,1 A VAV pair manifests itself in a switching of the Josephson junction from the superconducting biased single Josephson junctions (JJs), various SQUIDs, and small Josephson junction arrays, contain

Wallraff, Andreas

348

W0 pairing in ,,N,N... carbon nanotubes away from half filling Enrico Perfetto, Gianluca Stefanucci, and Michele Cini  

E-Print Network [OSTI]

,1 nanotube confirm the expectations. For (N,N) nanotubes of length l, the binding energy of the pair dependsW?0 pairing in ,,N,N... carbon nanotubes away from half filling Enrico Perfetto, Gianluca bands of carbon single-wall (N,N) nanotubes. A detailed symmetry analysis shows that the model allows W

Stefanucci, Gianluca

349

Abstract 2227: An automatic pipeline to find and annotate rare subclonal somatic variants in a paired tumor/normal sample  

Science Journals Connector (OSTI)

...5-9, 2014; San Diego, CA Abstract 2227: An automatic pipeline to find and annotate rare subclonal somatic variants in a paired...Thomas Knudsen, Dan Richards, Roald Forsberg. An automatic pipeline to find and annotate rare subclonal somatic variants in a paired...

Anika Joecker; Nathan Pearson; Cecilie Boysen; Naomi Thomson; Anne-Mette Hein; Bodil Oster; Anne Arens; Bjarne Knudsen; Thomas Knudsen; Dan Richards; Roald Forsberg

2014-10-01T23:59:59.000Z

350

Advances in Applied Clifford Algebras Boosted Surfaces: Synthesis of 3D Meshes using Point Pair Generators in the  

E-Print Network [OSTI]

, and the interpolation of point pairs. Applying these rotors to points and circles provides an novel and efficient basis algebra can be leveraged as generators of "simple" orbit-inducing rotors. In the current work, null point of points, and the interpolation of point pairs. Applying these rotors to points and circles provides

California at Santa Barbara, University of

351

Moderately dense gas quantum kinetic theory: Aspects of pair correlations R. F. Snider and G. W. Wei  

E-Print Network [OSTI]

Boltzmann equation emphasizes the need to explicitly include pair correlations and the conversion of kinetic energy to potential energy as important effects in the kinetic theory of moderately dense gases that the pair density operator used for collisions should be such that it factors both before and after

Wei, Guo-Wei

352

Determination of the Multipolarity of Nuclear Electromagnetic Transitions Using a Magnetic Pair Spectrometer  

Science Journals Connector (OSTI)

An intermediate-image magnetic pair spectrometer has been modified so as to respond to positron-electron internal pairs emitted at large relative angles (50???90) thereby making the pair-line transmission depend sensitively on the multipolarity of electromagnetic transitions above 2 MeV. The modification consists of a specially designed spiral baffle system which selects pairs emitted within 105 azimuthal sectors on opposite sides of the axis. Measurements are made of the net yield of an internal-pair-conversion coincidence line, both in the normal spectrometer operation (pairs with relative angles 0???90) and with the spiral baffle installed, giving a reduction ratio R?=Ywith baffle Ywithout baffle . Experimental ratios were determined for 14 known transitions including E0, E1, M1, E2, M2, and E3 multipoles between 3 and 7 MeV. Theoretical calculations were carried out on the spectrometer transmission, when using the baffle, for E0, E1 through E4, and M1 through M4 transitions from nonaligned nuclei over a wide energy range. These transmissions were combined with previous calculations of the transmission without the baffle in order to derive curves of R?(l) versus transition energy for the various multipoles. A best fit to the experimental ratios for the known multipoles was made in the calculations by adjusting slightly the values of the mean spectrometer-entrace angle and the sector angle ? of the baffle. The various ratio curves thus obtained are spaced widely enough apart to allow clear multipole assignments to be made in most cases. For mixed transitions from aligned nuclei, calculations were made of correction factors to be applied to the experimentally determined ratios. It is shown how the correction factors can be derived from separate measurements of the angular distributions of the corresponding gamma rays. The method has been applied to a number of previously unassigned transitions in Be10, B10, C14, and N14 leading to new spin and parity information on certain levels in these nuclei. In particular, it is found that the Be10 6.18-MeV level and the C14 6.58-MeV level are both 0+ and the N14 5.10-MeV level has odd parity.

E. K. Warburton; D. E. Alburger; A. Gallmann; P. Wagner; L. F. Chase; Jr.

1964-01-13T23:59:59.000Z

353

Polarization Effects In The Charged Lepton Pair Production By A Neutrino (Antineutrino) In A Magnetic Field  

SciTech Connect (OSTI)

The probability of the process of the charged lepton pair production by a neutrino (an antineutrino) with allowance for the longitudinal and transverse polarizations of the charged leptons in a magnetic field is presented. The dependence of the probability of the process on the spin variables of the charged leptons and on the azimuthal and polar angles of the initial and final neutrinos (antineutrinos) are investigated. It is shown that the probability of the process is sensitive to the spin variables of the charged leptons and to the direction of the neutrino (antineutrino) momentum. It is determined that the neutrino (antineutrino) energy and momentum loss through the production of a charged lepton pair happens asymmetrically.

Huseynov, Vali A. [Department of General and Theoretical Physics, Nakhchivan State University, AZ 7000, Nakhchivan (Azerbaijan); Laboratory of Physical Research, Nakhchivan Division of Azerbaijan National Academy of Sciences, AZ 7000, Nakhchivan (Azerbaijan); Ahmad, Ali S. [Department of General and Theoretical Physics, Nakhchivan State University, AZ 7000, Nakhchivan (Azerbaijan)

2007-06-13T23:59:59.000Z

354

Superfluid phases of triplet pairing and rapid cooling of the neutron star in Cassiopeia A  

E-Print Network [OSTI]

In a simple model it is demonstrated that the neutron star surface temperature evolution is sensitive to the phase state of the triplet superfluid condensate. A multicomponent triplet pairing of superfluid neutrons in the core of a neutron star with participation of several magnetic quantum numbers leads to neutrino energy losses exceeding the losses from the unicomponent pairing. A phase transition of the neutron condensate into the multicomponent state triggers more rapid cooling of superfluid core in neutron stars. This makes it possible to simulate an anomalously rapid cooling of neutron stars within the minimal cooling paradigm without employing any exotic scenarios suggested earlier for rapid cooling of isolated neutron star in Cassiopeia A.

Leinson, Lev B

2014-01-01T23:59:59.000Z

355

Molecular ion-pair states in ungerade H{sub 2}  

SciTech Connect (OSTI)

Molecular ion-pair states are analogs of electronic Rydberg states, but with the electron replaced by a much heavier ion. We calculate ab initio the long-range vibrational H{sup +}H{sup -} ion-pair states in H{sub 2} for ungerade {sup 1}{Sigma}{sub u}{sup +} symmetry, corresponding to recent observations by Ekey and McCormack [Phys. Rev. A 84, 020501 (2011)]. The overall trends in the experiment are reproduced and many peaks can be assigned. The calculations yield interloper resonances corresponding to vibrational states trapped inside the barriers on the potential-energy curves 5,6 {sup 1}{Sigma}{sub u}{sup +}.

Kirrander, Adam [Laboratoire Aime Cotton du Centre National de la Recherche Scientifique, Universite de Paris-Sud, F-91405 Orsay (France); Jungen, Christian [Laboratoire Aime Cotton du Centre National de la Recherche Scientifique, Universite de Paris-Sud, F-91405 Orsay (France); Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)

2011-11-15T23:59:59.000Z

356

Spatial correlation of photon pairs produced in spontaneous parametric down-conversion  

SciTech Connect (OSTI)

We report the observation of spatial biphoton correlation in spontaneous parametric down conversion. The optical bench includes a type-I BBO crystal of effective length 2 mm, pumped by a 100 mW violet laser diode centered at 405.38 nm. Photon pairs are created with degenerate wavelength {approx_equal}810.76 nm. Once the horizontal counting rates have been measured, a simple geometrical recipe is shown to be useful in calculating bounds for the width of vertical counting rates. The spatial correlation between idler and signal photons is illustrated with a coincidence distribution of the coordinate pair (x{sub s},x{sub i}), with x{sub i,s} the idler (signal) detector position in horizontal scan.

Procopio, L. M. [Departamento de Fisica, Cinvestav, A.P. 14-740, Mexico D.F. 07000 (Mexico); Rosas-Ortiz, O. [Departamento de Fisica, Cinvestav, A.P. 14-740, Mexico D.F. 07000 (Mexico); Instituto de Fisica, Universidad Nacional Autonoma de Mexico, A.P. 20-364, Mexico D.F. 01000 (Mexico); Velazquez, V. [Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, A.P. 20-364, Mexico D.F. 04510 (Mexico)

2010-10-11T23:59:59.000Z

357

Parity violating radiative emission of neutrino pair in heavy alkaline earth atoms of even isotopes  

E-Print Network [OSTI]

Metastable excited states ${}^3P_2, {}^3P_0$ of heavy alkaline earth atoms of even isotopes are studied for parity violating (PV) effects in radiative emission of neutrino pair (RENP). PV terms arise from interference between two diagrams containing neutrino pair emission of valence spin current and nuclear electroweak charge density proportional to the number of neutrons in nucleus. This mechanism gives large PV effects, since it does not suffer from the suppression of 1/(electron mass) usually present for non-relativistic atomic electrons. A controllable magnetic field is crucial to identify RENP process by measuring PV observables. Results of PV asymmetries under the magnetic field reversal and the photon circular polarization reversal are presented for an example of Yb atom.

M. Yoshimura; N. Sasao; S. Uetake

2014-03-26T23:59:59.000Z

358

Search for the standard model Higgs boson in tau lepton pair final states  

E-Print Network [OSTI]

We present a search for the standard model Higgs boson in final states with an electron or muon and a hadronically decaying tau lepton in association with zero, one, or two or more jets using data corresponding to an integrated luminosity of up to 7.3 fb^{-1} collected with the D0 detector at the Fermilab Tevatron collider. The analysis is sensitive to Higgs boson production via gluon gluon fusion, associated vector boson production, and vector boson fusion, and to Higgs boson decays to tau lepton pairs or W boson pairs. Observed (expected) limits are set on the ratio of 95% C.L. upper limits on the cross section times branching ratio, relative to those predicted by the Standard Model, of 14 (22) at a Higgs boson mass of 115 GeV and 7.7 (6.8) at 165 GeV.

D0 Collaboration

2012-05-16T23:59:59.000Z

359

The influence of pairing on the nuclear matrix elements of the neutrinoless double beta decays  

E-Print Network [OSTI]

We study in this letter the behavior of the neutrinoless double beta decay nuclear matrix elements (NME's) in the framework of the Interacting Shell Model. We analize them in terms of the total angular momentum of the decaying neutron pair and as a function of the seniority truncations in the nuclear wave functions. This point of view turns out to be very adequate to gauge the accuracy of the NME's predicted by different nuclear structure models. In addition, it gives back the due protagonism in this process to the pairing interaction, the interaction which is responsible for the very existence of double beta decay emitters. We show that low seniority approximations, comparable to those implicit in the quasiparticle RPA in an spherical basis, tend to overestimate the values of the NME's in several decays.

E. Caurier; J. Menendez; F. Nowacki; A. Poves

2007-09-13T23:59:59.000Z

360

A proposal for testing subcritical vacuum pair production with high power lasers  

E-Print Network [OSTI]

We present a proposal for testing the prediction of non-equilibrium quantum field theory below the Schwinger limit. The proposed experiments should be able to detect a measurable number of gamma rays resulting from the annihilation of pairs in the focal spot of two opposing high intensity laser beams. We discuss the dependence of the expected number of gamma rays with the laser parameters and compare with the estimated background level of gamma hits for realistic laser conditions.

G. Gregori; D. B. Blaschke; P. P. Rajeev; H. Chen; R. J. Clarke; T. Huffman; C. D. Murphy; A. V. Prozorkevich; C. D. Roberts; G. Rpke; S. M. Schmidt; S. A. Smolyansky; S. Wilks; R. Bingham

2010-05-18T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Baecklund transformation, Lax pair, and solutions for the Caudrey-Dodd-Gibbon equation  

SciTech Connect (OSTI)

By using Bell polynomials and symbolic computation, we investigate the Caudrey-Dodd-Gibbon equation analytically. Through a generalization of Bells polynomials, its bilinear form is derived, based on which, the periodic wave solution and soliton solutions are presented. And the soliton solutions with graphic analysis are also given. Furthermore, Baecklund transformation and Lax pair are derived via the Bells exponential polynomials. Finally, the Ablowitz-Kaup-Newell-Segur system is constructed.

Qu Qixing; Sun Kun; Jiang Yan [School of Science, Beijing University of Posts and Telecommunications, P.O. Box 122, Beijing 100876 (China); Tian Bo [School of Science, Beijing University of Posts and Telecommunications, P.O. Box 122, Beijing 100876 (China); State Key Laboratory of Software Development Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191 (China); Key Laboratory of Information Photonics and Optical Communications (BUPT), Ministry of Education, Beijing University of Posts and Telecommunications, P.O. Box 122, Beijing 100876 (China)

2011-01-15T23:59:59.000Z

362

Comment on 'Two-way protocols for quantum cryptography with a nonmaximally entangled qubit pair'  

SciTech Connect (OSTI)

Three protocols of quantum cryptography with a nonmaximally entangled qubit pair [Phys. Rev. A 80, 022323 (2009)] were recently proposed by Shimizu, Tamaki, and Fukasaka. The security of these protocols is based on the quantum-mechanical constraint for a state transformation between nonmaximally entangled states. However, we find that the second protocol is vulnerable under the correlation-elicitation attack. An eavesdropper can obtain the encoded bit M although she has no knowledge about the random bit R.

Qin Sujuan; Gao Fei; Wen Qiaoyan [State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876 (China); Guo Fenzhuo [School of Science, Beijing University of Posts and Telecommunications, Beijing, 100876 (China)

2010-09-15T23:59:59.000Z

363

Jordan Pairs, E6 and U-Duality in Five Dimensions  

E-Print Network [OSTI]

By exploiting the Jordan pair structure of U-duality Lie algebras in D = 3 and the relation to the super-Ehlers symmetry in D = 5, we elucidate the massless multiplet structure of the spectrum of a broad class of D = 5 supergravity theories. Both simple and semi-simple, Euclidean rank-3 Jordan algebras are considered. Theories sharing the same bosonic sector but with different supersymmetrizations are also analyzed.

Sergio Ferrara; Alessio Marrani; Bruno Zumino

2012-08-01T23:59:59.000Z

364

Plane wave diffraction by a pair of parallel soft and hard overlapped half-planes  

Science Journals Connector (OSTI)

The diffraction of plane waves by a pair of parallel, overlapped half-planes characterized by Dirichlet and Neumann boundary conditions, respectively, is investigated. The corresponding boundary value problem is formulated as a matrix Weiner-Hopf equation whose solution is obtained through the weak factorization method. This method reduces the problems to an infinite system of linear algebraic equations which are solved numerically. An analysis of the scattered field, which depends on the solution obtained numerically, is also performed in some detail.

Alinur Bykaksoy; Erdem Topsakal; Mithat ?demen

1994-01-01T23:59:59.000Z

365

Bogoliubov Shadow Bands in the Normal State of Superconducting Systems with Strong Pair Fluctuations  

Science Journals Connector (OSTI)

On the basis of a scenario where electron pairing is induced by resonant two-particle scattering (the boson-fermion model), we show how precursors of the superconducting statein the form of overdamped Bogoliubov modesemerge in the normal state upon approaching the transition temperature from above. This result is obtained by a renormalization technique based on continuous unitary transformations (the flow equations), projecting out the coherent contributions in the electron spectral function from an incoherent background.

T. Domanski and J. Ranninger

2003-12-18T23:59:59.000Z

366

Tutorial guide to the tau lepton and close-mass lepton pairs  

SciTech Connect (OSTI)

This is a tutorial guide to present knowledge of the tau lepton, to the tau decay mode puzzle, and to present searches for close-mass lepton pairs. The test is minimal; the emphasis is on figures, tables and literature references. It is based on a lecture given at the 1988 International School of Subnuclear Physics: The Super World III. 54 refs., 9 figs., 7 tabs.

Perl, M.L.

1988-10-01T23:59:59.000Z

367

Probing transverse momentum dependent gluon distribution functions from hadronic quarkonium pair production  

E-Print Network [OSTI]

The inclusive hadronic production of $\\eta_Q$($\\eta_c$ or $\\eta_b$) pair is proposed to extract the transverse momentum dependent(TMD) gluon distribution functions. We use nonrelativistic QCD(NRQCD) for the production of $\\eta_Q$. Under nonrelativistic limit TMD factorization for this process is assumed to make a lowest order calculation. For unpolarized initial hadrons, unpolarized and linearly polarized gluon distributions can be extracted by studying different angular distributions.

Guang-Peng Zhang

2014-06-20T23:59:59.000Z

368

Next-to-leading order slepton pair production at hadron colliders  

E-Print Network [OSTI]

We compute total cross sections for various slepton pair production reactions in next-to-leading order QCD. For pbarp collisions at root S=2TeV, we find leading order cross sections to be enhanced by typically 35% to 40%. For pp collisions at root S=14TeV, the enhancement ranges from 25% to 35% depending on the mass of the sleptons. We comment upon the phenomenological implications of these results.

Howard Baer; B. W. Harris; Mary Hall Reno

1997-12-09T23:59:59.000Z

369

NON-FREE POINTS FOR GROUPS GENERATED BY A PAIR OF 2 2 MATRICES.  

E-Print Network [OSTI]

NON-FREE POINTS FOR GROUPS GENERATED BY A PAIR OF 2 ? 2 MATRICES. JOHN BAMBERG Abstract. A point in the complex plane is said to be free if the group generated by the matrices ( 1 2 0 1 ) and ( 1 0 1 ) is free. In this paper we give an infinite family of polynomials whose roots are the non-free points. The main idea

Bamberg, John

370

Aligned neutron--proton pairs in $N\\sim Z$ nuclei  

E-Print Network [OSTI]

It is argued that $N\\sim Z$ nuclei with $90\\leq A\\leq100$ can be interpreted in terms of aligned neutron--proton pairs with angular momentum $J=2j$ and isospin T=0. Based on this observation, a version of the interacting boson model is formulated in terms of isoscalar high-spin bosons. To illustrate its possible use, the model is applied to the $21^+$ isomer in $^{94}$Ag.

P. Van Isacker

2012-07-06T23:59:59.000Z

371

Virtual corrections to Higgs boson pair production in the large top quark mass limit  

Science Journals Connector (OSTI)

Abstract We calculate the three-loop matching coefficient C H H , required for a consistent description of Higgs boson pair production in gluon fusion through next-to-next-to-leading order QCD in the heavy top quark approximation. We also compute the g g ? H H amplitude in m t ? ? approximation in the full theory and show its consistency with an earlier computation in heavy-top effective theory.

Jonathan Grigo; Kirill Melnikov; Matthias Steinhauser

2014-01-01T23:59:59.000Z

372

Decomposition of harmonic and jet contributions to particle-pair correlations at ultrarelativistic energies  

SciTech Connect (OSTI)

Methodology is presented for analysis of two-particle azimuthal angle correlation functions obtained in collisions at ultrarelativistic energies. We show that harmonic and di-jet contributions to these correlation functions can be reliably decomposed by two techniques to give an accurate measurement of the jet-pair distribution. Results from detailed Monte Carlo simulations are used to demonstrate the efficacy of these techniques in the study of possible modifications to jet topologies in heavy ion reactions.

Ajitanand, N.N.; Alexander, J.M.; Chung, P.; Holzmann, W.G.; Issah, M.; Lacey, Roy A.; Shevel, A.; Taranenko, A.; Danielewicz, P. [Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794 (United States); Michigan State University, East Lansing, Michigan 48824-1321 (United States)

2005-07-01T23:59:59.000Z

373

Decomposition of Harmonic and Jet Contributions to Particle-pair Correlations at Ultra-relativistic Energies  

E-Print Network [OSTI]

Methodology is presented for analysis of two-particle azimuthal angle correlation functions obtained in collisions at ultra-relativistic energies. We show that harmonic and di-jet contributions to these correlation functions can be reliably decomposed by two techniques to give an accurate measurement of the jet-pair distribution. Results from detailed Monte Carlo simulations are used to demonstrate the efficacy of these techniques in the study of possible modifications to jet topologies in heavy ion reactions.

N. N. Ajitanand; J. M. Alexander; P. Chung; W. G. Holzmann; M. Issah; Roy A. Lacey; A. Shevel; A. Taranenko; P. Danielewicz

2005-01-25T23:59:59.000Z

374

Assessment of the importance of the pairing interaction in the continuum  

Science Journals Connector (OSTI)

A pairing interaction fitted to be applied in nuclei with active particles moving close to the continuum threshold or even immersed in the continuum itself is introduced. It is found that the effects of the nonresonant continuum upon physically meaningful quantities is unimportant. We applied the theory to heavy tin isotopes and good agreement between theory and the very few available experimental data is found.

R. Id Betan; G. G. Dussel; R. J. Liotta

2008-10-27T23:59:59.000Z

375

Renormalization group-induced phenomena of top pairs from four-quark effective operators  

E-Print Network [OSTI]

We study the renormalization group(RG) evolution of four-quark operators that contribute to the top pair production. In particular, we focus on the cases in which certain observables are \\emph{first} induced from the one-loop RG while being absent at tree-level. From the operator mixing pattern, we classify all such RG-induced phenomena and underlying models that can induce them. We then calculate the full one-loop QCD RG evolution as the leading estimator of the effects and address the question of which RG-induced phenomena have largest and observable effects. The answer is related to the color structure of QCD. The studied topics include the RG-induction of top asymmetries, polarizations and polarization mixings as well as issues arising at this order. The RG-induction of top asymmetries is further compared with the generation of asymmetries from QCD and QED at one-loop order. We finally discuss the validity of using the RG as the proxy of one-loop effects on the top pair production. As an aside, we clarify the often-studied relations between top pair observables.

Sunghoon Jung; P. Ko; Yeo Woong Yoon; Chaehyun Yu

2014-06-18T23:59:59.000Z

376

Pair-truncated shell-model analysis of nuclei around mass 130  

SciTech Connect (OSTI)

Low-lying states for even-even, odd-mass, and doubly odd nuclei in the mass A{approx}130 region are systematically investigated using a pair-truncated shell model. In this model the collective nucleon pairs with angular momenta zero and two are the basic ingredients for even-even nuclei. Additional unpaired nucleons are added to the even-even core for a description of odd-mass and doubly odd nuclei. The effective interactions consist of single-particle energies and monopole and quadrupole pairing plus quadrupole-quadrupole interactions, whose strengths are assumed to be linearly changed as functions of the number of nucleons so as to describe the level schemes of the even-even and odd-mass nuclei. Energy levels of the low-lying collective states for even-even Xe, Ba, Ce, and Nd isotopes are reproduced very well along with intraband and interband B(E2) values, which simulate the typical features of the O(6) limit of the interacting boson model. For odd-mass and doubly odd nuclei, complicated level schemes and electromagnetic moments are in excellent agreement with the experimental data.

Higashiyama, Koji [Department of Physics, Chiba Institute of Technology, Narashino, Chiba 275-0023 (Japan); Yoshinaga, Naotaka [Department of Physics, Saitama University, Saitama City 338-8570 (Japan)

2011-03-15T23:59:59.000Z

377

Nanoscale strain-induced pair suppression as a vortex-pinning mechanism in high- temperature superconductors  

SciTech Connect (OSTI)

Boosting large-scale superconductor applications require nanostructured conductors with artificial pinning centres immobilizing quantized vortices at high temperature and magnetic fields. Here we demonstrate a highly effective mechanism of artificial pinning centers in solution-derived high-temperature superconductor nanocomposites through generation of nanostrained regions where Cooper pair formation is suppressed. The nanostrained regions identified from transmission electron microscopy devise a very high concentration of partial dislocations associated with intergrowths generated between the randomly oriented nanodots and the epitaxial YBa{sub 2}Cu{sub 3}O{sub 7} matrix. Consequently, an outstanding vortex-pinning enhancement correlated to the nanostrain is demonstrated for four types of randomly oriented nanodot, and a unique evolution towards an isotropic vortex-pinning behaviour, even in the effective anisotropy, is achieved as the nanostrain turns isotropic. We suggest a new vortex-pinning mechanism based on the bond-contraction pairing model, where pair formation is quenched under tensile strain, forming new and effective core-pinning regions.

Llordes, Anna [ICMAB, Barcelona, Spain; Palau, A. [ICMAB, Barcelona, Spain; Gazquez, J. [Oak Ridge National Laboratory (ORNL); Coll, M. [ICMAB, Barcelona, Spain; Vlad, R. [ICMAB, Barcelona, Spain; Pomar, A. [ICMAB, Barcelona, Spain; Arbiol, Jordi [ICMAB, Barcelona, Spain; Guzman, Roger [ICMAB, Barcelona, Spain; Ye, S. [ICMAB, Barcelona, Spain; Rouco, V [ICMAB, Barcelona, Spain; Sandiumenge, Felip [ICMAB, Barcelona, Spain; Ricart, Susagna [ICMAB, Barcelona, Spain; Puig, Teresa [ICMAB, Barcelona, Spain; Varela del Arco, Maria [ORNL; Chataigner, D. [CRISMAT, Caen, France; Vanacken, J. [INPAC-Institute for Nanoscale Physics and Chemistry, Leuven, Belgium; Gutierrez, J. [INPAC-Institute for Nanoscale Physics and Chemistry, Leuven, Belgium; Moschalkov, V. [INPAC-Institute for Nanoscale Physics and Chemistry, Leuven, Belgium; Deutscher, G. [Tel Aviv University; Magen Dominguez, Cesar [ORNL; Obradors, Xavier [ICMAB, Barcelona, Spain

2012-01-01T23:59:59.000Z

378

B-DNA structure is intrinsically polymorphic: even at the level of base pair positions  

SciTech Connect (OSTI)

Increasingly exact measurement of single crystal X-ray diffraction data offers detailed characterization of DNA conformation, hydration and electrostatics. However, instead of providing a more clear and unambiguous image of DNA, highly accurate diffraction data reveal polymorphism of the DNA atomic positions and conformation and hydration. Here we describe an accurate X-ray structure of B-DNA, painstakingly fit to a multistate model that contains multiple competing positions of most of the backbone and of entire base pairs. Two of ten base-pairs of CCAGGCCTGG are in multiple states distinguished primarily by differences in slide. Similarly, all the surrounding ions are seen to fractionally occupy discrete competing and overlapping sites. And finally, the vast majority of water molecules show strong evidence of multiple competing sites. Conventional resolution appears to give a false sense of homogeneity in conformation and interactions of DNA. In addition, conventional resolution yields an average structure that is not accurate, in that it is different from any of the multiple discrete structures observed at high resolution. Because base pair positional heterogeneity has not always been incorporated into model-building, even some high and ultrahigh-resolution structures of DNA do not indicate the full extent of conformational polymorphism.

Maehigashi, Tatsuya; Hsiao, Chiaolong; Woods, Kristen Kruger; Moulaei, Tinoush; Hud, Nicholas V.; Williams, Loren Dean (GIT)

2012-10-23T23:59:59.000Z

379

STUDYING INTERCLUSTER GALAXY FILAMENTS THROUGH STACKING gmBCG GALAXY CLUSTER PAIRS  

SciTech Connect (OSTI)

We present a method to study the photometric properties of galaxies in filaments by stacking the galaxy populations between pairs of galaxy clusters. Using Sloan Digital Sky Survey data, this method can detect the intercluster filament galaxy overdensity with a significance of {approx}5{sigma} out to z = 0.40. Using this approach, we study the g - r color and luminosity distribution of filament galaxies as a function of redshift. Consistent with expectation, filament galaxies are bimodal in their color distribution and contain a larger blue galaxy population than clusters. Filament galaxies are also generally fainter than cluster galaxies. More interestingly, the observed filament population seems to show redshift evolution at 0.12 < z < 0.40: the blue galaxy fraction has a trend to increase at higher redshift; such evolution is parallel to the ''Butcher-Oemler effect'' of galaxy clusters. We test the dependence of the observed filament density on the richness of the cluster pair: richer clusters are connected by higher density filaments. We also test the spatial dependence of filament galaxy overdensity: this quantity decreases when moving away from the intercluster axis between a cluster pair. This method provides an economical way to probe the photometric properties of filament galaxies and should prove useful for upcoming projects like the Dark Energy Survey.

Zhang Yuanyuan; Dietrich, Joerg P.; McKay, Timothy A.; Nguyen, Alex T. Q. [Department of Physics, University of Michigan, Ann Arbor, MI (United States); Sheldon, Erin S. [Brookhaven National Laboratory, Upton, NY (United States)

2013-08-20T23:59:59.000Z

380

Changing Ionization Conditions in SDSS Galaxies with AGN as a Function of Environment from Pairs to Clusters  

E-Print Network [OSTI]

We study how AGN activity changes across environments from galaxy pairs to clusters using $143\\, 843$ galaxies with $zenvironmental effects while removing contamination. We confirm that galaxy interactions enhance AGN activity. However, conditions in the central regions of clusters are inhospitable for AGN activity even if galaxies are in pairs. These results can be explained through models of gas dynamics in which pair interactions stimulate the transfer of gas to the nucleus and clusters suppress gas availability for accretion onto the central black hole.

Khabiboulline, Emil T; Silverman, John D; Ellison, Sara L; Mendel, J Trevor; Patton, David R

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Deformation effects on the coexistence between neutron-proton and particle like pairing in N=Z medium mass nuclei  

E-Print Network [OSTI]

A model combining self-consistent mean-field and shell-model techniques is used to study the competition between particle like and proton-neutron pairing correlations in fp-shell even-even self-conjugate nuclei. Results obtained using constant two-body pairing interactions as well as more sophisticated interactions are presented and discussed. The standard BCS calculations are systematically compared with more refined approaches including correlation effects beyond the independent quasi-particle approach. The competition between proton-neutron correlations in the isoscalar and isovector channels is also analyzed, as well as their dependence on the deformation properties. Besides the expected role of the spin-orbit interaction and particle number conservation, it is shown that deformation leads to a reduction of the pairing correlations. This reduction originates from the change of the single-particle spectrum and from a quenching of the residual pairing matrix elements. The competition between isoscalar and i...

Gambacurta, D

2014-01-01T23:59:59.000Z

382

Exchange-correlation energy from pairing matrix fluctuation and the particle-particle random phase approximation  

SciTech Connect (OSTI)

Despite their unmatched success for many applications, commonly used local, semi-local, and hybrid density functionals still face challenges when it comes to describing long-range interactions, static correlation, and electron delocalization. Density functionals of both the occupied and virtual orbitals are able to address these problems. The particle-hole (ph-) Random Phase Approximation (RPA), a functional of occupied and virtual orbitals, has recently known a revival within the density functional theory community. Following up on an idea introduced in our recent communication [H. van Aggelen, Y. Yang, and W. Yang, Phys. Rev. A 88, 030501 (2013)], we formulate more general adiabatic connections for the correlation energy in terms of pairing matrix fluctuations described by the particle-particle (pp-) propagator. With numerical examples of the pp-RPA, the lowest-order approximation to the pp-propagator, we illustrate the potential of density functional approximations based on pairing matrix fluctuations. The pp-RPA is size-extensive, self-interaction free, fully anti-symmetric, describes the strong static correlation limit in H{sub 2}, and eliminates delocalization errors in H{sub 2}{sup +} and other single-bond systems. It gives surprisingly good non-bonded interaction energies competitive with the ph-RPA with the correct R{sup ?6} asymptotic decay as a function of the separation R, which we argue is mainly attributable to its correct second-order energy term. While the pp-RPA tends to underestimate absolute correlation energies, it gives good relative energies: much better atomization energies than the ph-RPA, as it has no tendency to underbind, and reaction energies of similar quality. The adiabatic connection in terms of pairing matrix fluctuation paves the way for promising new density functional approximations.

Aggelen, Helen van [Department of Inorganic and Physical Chemistry, Ghent University, Ghent (Belgium) [Department of Inorganic and Physical Chemistry, Ghent University, Ghent (Belgium); Department of Chemistry, Duke University, Durham, North Carolina 27708 (United States); Yang, Yang [Department of Chemistry, Duke University, Durham, North Carolina 27708 (United States)] [Department of Chemistry, Duke University, Durham, North Carolina 27708 (United States); Yang, Weitao [Department of Chemistry and Department of Physics, Duke University, Durham, North Carolina 27708 (United States)] [Department of Chemistry and Department of Physics, Duke University, Durham, North Carolina 27708 (United States)

2014-05-14T23:59:59.000Z

383

Energy cost reduction in the synchronization of a pair of nonidentical coupled Hindmarsh-Rose neurons  

E-Print Network [OSTI]

Many biological processes involve synchronization between nonequivalent systems, i.e, systems where the difference is limited to a rather small parameter mismatch. The maintenance of the synchronized regime in this cases is energetically costly \\cite{1}. This work studies the energy implications of synchronization phenomena in a pair of structurally flexible coupled neurons that interact through electrical coupling. We show that the forced synchronization between two nonidentical neurons creates appropriate conditions for an efficient actuation of adaptive laws able to make the neurons structurally approach their behaviours in order to decrease the flow of energy required to maintain the synchronization regime.

A. Moujahid; A. D'Anjou; F. J. Torrealdea; C. Sarasola

2012-04-17T23:59:59.000Z

384

Nonperturbative electromagnetic muon-pair production with capture in peripheral relativistic heavy-ion collisions  

SciTech Connect (OSTI)

We discuss preliminary calculations of impact-parameter-dependent probabilities and cross sections for muon-pair production with capture of the negative muon into the K-shell of the target caused by the time-dependent electromagnetic fields generated in peripheral relativistic heavy-ion collisions. Our approach is nonperturbative in that we calculate probabilities by solving the time-dependent Dirac equation on a three-dimensional Cartesian lattice using the basis-spline collocation method. Use of the axial gauge for the electromagnetic potentials produces an interaction easier to implement on the lattice than the Lorentz gauge. 19 refs., 5 figs.

Wells, J.C. (Oak Ridge National Lab., TN (United States) Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy); Oberacker, V.E.; Umar, A.S. (Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy); Bottcher, C.; Strayer, M.R.; Wu, J.S. (Oak Ridge National Lab., TN (United States))

1991-01-01T23:59:59.000Z

385

Threshold resummation for WZ and ZZ pair production at the LHC  

Science Journals Connector (OSTI)

We perform the threshold resummation for WZ and ZZ pair production at the next-to-next-to-leading logarithmic accuracy in soft-collinear effective theory at the LHC. Our results show that the resummation effects increase the total cross sections by about 7% for ZZ production and 12% for WZ production with S=7, 8, 13 and 14TeV, respectively, and the scale uncertainties are significantly reduced. Besides, our numerical results are consistent with experimental data reported by the ATLAS and CMS collaborations.

Yan Wang; Chong Sheng Li; Ze Long Liu; Ding Yu Shao

2014-08-11T23:59:59.000Z

386

Search for first generation leptoquark pair production in the electron + missing energy + jets final state  

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

We present a search for the pair production of first generation scalar leptoquarks (LQ) in data corresponding to an integrated luminosity of 5.4 fb-1 collected with the D0 detector at the Fermilab Tevatron Collider in pp? collisions at ?s = 1.96 TeV. In the channel LQLQ ? eq?eq?, where q,q? are u or d quarks, no significant excess of data over background is observed, and we set a 95% C.L. lower limit of 326 GeV on the leptoquark mass, assuming equal probabilities of leptoquark decays to eq and ?eq?.

Abazov, Victor Mukhamedovich; Abbott, Braden Keim; Acharya, Bannanje Sripath; Adams, Mark Raymond; Adams, Todd; Alexeev, Guennadi D.; Alkhazov, Georgiy D.; Alton, Andrew K.; Alverson, George O.; Alves, Gilvan Augusto; Aoki, Masato

2011-10-11T23:59:59.000Z

387

Non-empirical nuclear energy functionals, pairing gaps and odd-even mass differences  

E-Print Network [OSTI]

First, we briefly outline some aspects of the starting project to design non-empirical energy functionals based on low-momentum vacuum interactions and many-body perturbation theory. Second, we present results obtained within an approximation of such a scheme where the pairing part of the energy density functional is constructed at first order in the nuclear plus Coulomb two-body interaction. We discuss in detail the physics of the odd-even mass staggering and the necessity to compute actual odd-even mass differences to analyze it meaningfully.

T. Duguet; T. Lesinski

2009-07-06T23:59:59.000Z

388

Excited states in 104Cd described with the interacting boson model plus broken pairs  

Science Journals Connector (OSTI)

The high-spin structure of 104Cd has been studied through the 50Cr(58Ni,4p) reaction at a beam energy of 220 MeV. The level scheme has been extended up to an excitation energy of 11.9 MeV. Four collective structures have been identified based on two-quasineutron configurations. The low-lying states of both parities, as well as the main ?I=2 regular structures observed at high spin, are described in the framework of the interacting boson-fermion model with broken pairs.

G. de Angelis; C. Fahlander; D. Vretenar; S. Brant; A. Gadea; A. Algora; Y. Li; Q. Pan; E. Farnea; D. Bazzacco; G. Bonsignori; F. Brandolini; M. De Poli; D. De Acuna; S. Lunardi; G. Maron; D. R. Napoli; P. Pavan; C. M. Petrache; C. Rossi Alvarez; P. Spolaore; G. Vedovato

1999-06-17T23:59:59.000Z

389

Finite Size Effects on the Real-Space Pair Distribution Function of Nanoparticles  

SciTech Connect (OSTI)

The pair distribution function (PDF) method is a powerful approach for the analysis of the structure of nanoparticles. An important approximation used in nanoparticle PDF simulations is the incorporation of a form factor describing nanoparticle size and shape. The precise effect of the form factor on the PDF is determined by both particle shape and structure if these characteristics are both anisotropic and correlated. The correct incorporation of finite size effects is important for distinguishing and quantifying the structural consequences of small particle size in nanomaterials.

Gilbert, Benjamin

2008-10-01T23:59:59.000Z

390

d sigma/dy Distribution of Drell-Yan Dielectron Pairs  

SciTech Connect (OSTI)

The authors report on the measurement of the rapidity distribution, d{sigma}/dY, over the full kinematic range for e{sup +}e{sup -} pairs produced in p{bar p} collisions at {radical}s = 1.96 TeV in the Z boson region of 66 < M{sub ee} < 116 GeV/c{sup 2}. The data sample consists of 1.1 fb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV taken by the Collider Detector at Fermilab (CDF). The d{sigma}/dy is compared with the NLO theory prediction.

Han, Jiyeon; Bodek, A.; Sakumoto, W.; Chung, Y.; /Rochester U.

2007-11-01T23:59:59.000Z

391

Muon-Pair Production by Atmospheric Muons in CosmoALEPH  

Science Journals Connector (OSTI)

Data from a dedicated cosmic ray run of the ALEPH detector were used in a study of muon trident production, i.e., muon pairs produced by muons. Here the overburden and the calorimeters are the target materials while the ALEPH time projection chamber provides the momentum measurements. A theoretical estimate of the muon trident cross section is obtained by developing a MonteCarlo simulation for muon propagation in the overburden and the detector. Two muon trident candidates were found to match the expected theoretical pattern. The observed production rate implies that the nuclear form factor cannot be neglected for muon tridents.

F. Maciuc; C. Grupen; N.-O. Hashim; S. Luitz; A. Mailov; A.-S. Mller; A. Putzer; H.-G. Sander; S. Schmeling; M. Schmelling; R. Tcaciuc; H. Wachsmuth; Th. Ziegler; K. Zuber

2006-01-19T23:59:59.000Z

392

Approximate interacting solitary wave solutions for a pair of coupled nonlinear Schrdinger equations  

Science Journals Connector (OSTI)

Using a modified Cole-Hopf transformation and the Hirota method for series solutions, approximate interacting solitary wave solutions for a pair of coupled nonlinear Schrdinger equations have been investigated. Previous solutions have been regained. It is noted that if the solution of the first order term satisfied by the Schrdinger equation for a free particle has been taken as a linear superposition of the solutions, then the envelope of the interacting solitary waves are time dependent. If the coupling coefficient is negative, then the amplitudes of the envelope interacting solitary waves are reduced from those in the decoupled limit.

J. C. Bhakta

1994-06-01T23:59:59.000Z

393

Electric-field dependence of pairing temperature and tunneling in high-temperature superconductors  

Science Journals Connector (OSTI)

Using the Bethe-Salpeter equation including high electric fields, the dependence of the critical temperature of onsetting superconductivity on the applied field is calculated analytically. The critical temperature of pairing is shown to increase with the applied field strength. This is a new field effect and could contribute to the explanation of recent experiments on field-induced superconductivity. From the field dependence of the Bethe-Salpeter equation, the two-particle bound-state solution is obtained as a resonance with a tunneling probability analogous to the WKB solution of a single particle confined in a potential and coupled to an electrical field.

K. Morawetz

2002-11-27T23:59:59.000Z

394

Self-regulation of the reconnecting current layer in relativistic pair plasma reconnection  

E-Print Network [OSTI]

We investigate properties of the reconnecting current layer in relativistic pair plasma reconnection. We found that the current layer self-regulates its thickness when the current layer runs out current carriers, and so relativistic reconnection retains a fast reconnection rate. Constructing a steady state Sweet-Parker model, we discuss conditions for the current sheet expansion. Based on the energy argument, we conclude that the incompressible assumption is invalid in relativistic Sweet-Parker reconnection. The guide field cases are more incompressible than the anti-parallel cases, and we find a more significant current sheet expansion.

S. Zenitani; M. Hesse

2008-05-28T23:59:59.000Z

395

Search for heavy metastable particles decaying to quark pairs at CDF  

SciTech Connect (OSTI)

We report on the search for heavy metastable particles that decay into quark pairs with a macroscopic lifetime (c{tau} {approx} 1 cm) using data taken with the CDF II detector at Fermilab. We use a data driven background approach, where they build probability density functions to model Standard Model secondary vertices from known processes in order to estimate the background contribution from the Standard Model. No statistically significant excess is observed above the background. Limits on the production cross section in a Hidden Valley benchmark phenomenology are set for various Higgs boson masses as well as metastable particle masses and lifetimes.

Kwang, Shawn Andrew; /Chicago U.

2011-03-01T23:59:59.000Z

396

Higher-order pair-conversion peaks in heavy-ion collisions  

Science Journals Connector (OSTI)

We analyze quantum electrodynamic pair creation from vibrating nuclear quasimolecules which may occur in collisions of heavy ions. We find that higher-order processes, which can be phenomenologically relevant for sufficiently long lived systems, can result in coincident narrow peaks even for subcritical systems. The Z dependence of the energy of the peaks can be much softer than that predicted for positrons from sparking of the vacuum. Our results may be relevant to peaks which have been observed at the Gesellschaft fr Schwerionenforschung (GSI).

Denis Carrier and Lawrence M. Krauss

1988-09-01T23:59:59.000Z

397

Electron pair emission detected by time-of-flight spectrometers: Recent progress  

SciTech Connect (OSTI)

We present results for electron coincidence spectroscopy using two time-of-flight (ToF) spectrometers. Excited by electron impact, the energy and momentum distribution of electron pairs emitted from the Cu(111) surface are resolved and a spectral feature related to the Shockley surface state is identified. By combining the two ToF spectrometers with a high-order harmonic generation light source, we demonstrate double photoemission spectroscopy in the laboratory that required synchrotron radiation in the past. Utilizing this setup, we report results for (?,2e) on NiO(001) on Ag(001) excited with light at 30?eV photon energy.

Huth, Michael; Schumann, Frank O. [Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle (Germany); Chiang, Cheng-Tien; Trtzschler, Andreas; Kirschner, Jrgen [Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle (Germany); Institute of Physics, Martin-Luther-Universitt Halle-Wittenberg, Von-Danckelmann-Platz 3, D-06120 Halle (Saale) (Germany); Widdra, Wolf [Institute of Physics, Martin-Luther-Universitt Halle-Wittenberg, Von-Danckelmann-Platz 3, D-06120 Halle (Saale) (Germany); Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle (Germany)

2014-02-10T23:59:59.000Z

398

The electronic structure of an S-pair in barrier-less metal/silicon junctions  

SciTech Connect (OSTI)

With S atoms doping into a bulk Si, it is revealed through first principles calculations that the highly S concentrated bulk Si is metallic. S atoms can be highly doped in the bulk Si because an S-pair located face to face in adjacent Si lattice sites gains a large energy and forms sp{sup 2} + p{sub z} electronic configurations and extra donor electrons. Schottky junction will be thus barrier-less by the Si metallization, well agreeing with experimental analyses.

Kato, K.; Nishi, Y.; Marukame, T.; Mitani, Y. [Advanced LSI Technology Laboratory, Toshiba Corporate R and D Center (Japan)

2013-12-04T23:59:59.000Z

399

Biexciton emission from single isoelectronic traps formed by nitrogen-nitrogen pairs in GaAs  

SciTech Connect (OSTI)

We have studied photoluminescence (PL) from individual isoelectronic traps formed by nitrogen-nitrogen (NN) pairs in GaAs. Sharp emission lines due to exciton and biexciton were observed from individual isoelectronic traps in nitrogen atomic-layer doped (ALD) GaAs. The binding energy of biexciton bound to individual isoelectronic traps was approximately 8 meV. Both the exciton and biexciton luminescence lines show completely random polarization and no fine-structure splitting. These results are desirable to the application to the quantum cryptography used in the field of quantum information technology.

Takamiya, Kengo; Fukushima, Toshiyuki; Yagi, Shuhei; Hijikata, Yasuto; Yaguchi, Hiroyuki [Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku , Saitama 338-8570 (Japan); Mochizuki, Toshimitsu; Yoshita, Masahiro; Akiyama, Hidefumi [Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan); Kuboya, Shigeyuki; Onabe, Kentaro [Department of Advanced Materials Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan); Katayama, Ryuji [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan)

2013-12-04T23:59:59.000Z

400

Target duality in N=?8 superconformal mechanics and the coupling of dual pairs  

SciTech Connect (OSTI)

We couple dual pairs of N=?8 superconformal mechanics with conical targets of dimension d and 8?d. The superconformal coupling generates an oscillator-type potential on each of the two target factors, with a frequency depending on the respective dual coordinates. In the case of the inhomogeneous (3,8,5) model, which entails a monopole background, it is necessary to add an extra supermultiplet of constants for half of the supersymmetry. The N=?4 analog, joining an inhomogeneous (1,4,3) with a (3,4,1) multiplet, is also analyzed in detail.

Gonzales, Marcelo [Carrera de Fsica Universidad Autnoma Toms Fras, Av. Del Maestro s/n, Casilla 36, Potos (Bolivia, Plurinational State of)] [Carrera de Fsica Universidad Autnoma Toms Fras, Av. Del Maestro s/n, Casilla 36, Potos (Bolivia, Plurinational State of); Khodaee, Sadi; Toppan, Francesco [TEO, CBPF Rua Dr. Xavier Sigaud 150 (Urca), Rio de Janeiro (RJ), cep 22290-180 (Brazil)] [TEO, CBPF Rua Dr. Xavier Sigaud 150 (Urca), Rio de Janeiro (RJ), cep 22290-180 (Brazil); Lechtenfeld, Olaf [Institut fr Theoretische Physik and Riemann Center for Geometry and Physics, Leibniz Universitt Hannover, Appelstrae 2, 30167 Hannover (Germany) [Institut fr Theoretische Physik and Riemann Center for Geometry and Physics, Leibniz Universitt Hannover, Appelstrae 2, 30167 Hannover (Germany); Centre for Quantum Engineering and Space-Time Research, Leibniz Universitt Hannover, Welfengarten 1, 30167 Hannover (Germany)

2013-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Optical excitation of quasiparticle pairs in the vortex core of high- T sub c superconductors  

SciTech Connect (OSTI)

A far-infrared resonance has been observed in superconducting YBa{sub 2}Cu{sub 3}O{sub 7} thin films in the presence of high magnetic fields. It corresponds to the quasiparticle pair creation process inside the vortex core. The resonance frequency is {omega}{sub 0}=1.3{ital kT}{sub {ital c}}/{h bar} with a linewidth 1/{tau}{congruent}0.6{omega}. This value for {omega}{sub 0} implies, within BCS theory, a large energy gap in YBa{sub 2}Cu{sub 3}O{sub 7}.

Karraie, K.; Choi, E.J.; Dunmore, F.; Liu, S.H.; Drew, H.D. (Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, Maryland 20742 (United States) Laboratory for Physical Sciences, College Park, Maryland 20740 (United States)); Li, Q.; Fenner, D.B. (Advanced Fuel Research, E. Hartford, Connecticut 06138 (United States)); Zhu, Y.D.; Zhang, F. (Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221 (United States))

1992-07-06T23:59:59.000Z

402

Pair-Preference and Site-Preference Models for Rare-Earth Iron Garnets Exhibiting Noncubic Magnetic Anisotropies  

Science Journals Connector (OSTI)

The pair anisotropy model is extended to include the next-nearest-neighbor tetrahedral-iron ions. An anisotropy model based on growth-induced preferential site occupation is derived using the pair model. With the site model the nearest-neighbor tetrahedral- and nearest-neighbor octahedral-iron ions lead solely to a uniaxial anisotropy under both growth facets. Inclusion of the next-nearest-neighbor tetrahedral-iron ions results in the experimentally observed orthorhombic anisotropies.

A. Rosencwaig; W. J. Tabor; R. D. Pierce

1971-03-29T23:59:59.000Z

403

Bound-free pair production cross section in heavy-ion colliders from the equivalent photon approach  

E-Print Network [OSTI]

Exact calculations of the electron-positron pair production by a single photon in the Coulomb field of a nucleus with simultaneous capture of the electron into the K-shell are discussed for different nuclear charges. Using the equivalent photon method of Weizsaecker and Williams, a simple expression for the bound-free production of electron-positron pairs by colliding very-high-energy fully stripped heavy ions is derived for nuclei of arbitrary charge.

Andreas Aste

2008-01-16T23:59:59.000Z

404

Investigation of the deformed fermi surfaces mechanism for pairing of two species of fermions with mismatched fermi surfaces  

E-Print Network [OSTI]

INVESTIGATION OF THE DEFORMED FERMI SURFACES MECHANISM FOR PAIRING OF TWO SPECIES OF FERMIONS WITH MISMATCHED FERMI SURFACES A Thesis by JIANXU LU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 2007 Major Subject: Physics INVESTIGATION OF THE DEFORMED FERMI SURFACES MECHANISM FOR PAIRING OF TWO SPECIES OF FERMIONS WITH MISMATCHED FERMI SURFACES A Thesis by JIANXU LU Submitted to the Office...

Lu, Jianxu

2008-10-10T23:59:59.000Z

405

Production of e+e- Pairs Accompanied by Nuclear Dissociation in Ultra-peripheral Heavy Ion Collisions  

SciTech Connect (OSTI)

We present the first data on e{sup +}e{sup -} pair production accompanied by nuclear breakup in ultra-peripheral gold-gold collisions at a center of mass energy of 200 GeV per nucleon pair. The nuclear breakup requirement selects events at small impact parameters, where higher-order corrections to the pair production cross section should be enhanced. We compare the pair kinematic distributions with two calculations: one based on the equivalent photon approximation, and the other using lowest-order quantum electrodynamics (QED); the latter includes the photon virtuality. The cross section, pair mass, rapidity and angular distributions are in good agreement with both calculations. The pair transverse momentum, p{sub T}, spectrum agrees with the QED calculation, but not with the equivalent photon approach. We set limits on higher-order contributions to the cross section. The e{sup +} and e{sup -} p{sub T} spectra are similar, with no evidence for interference effects due to higher-order diagrams.

Adams, J.; Adler, C.; Aggarwal, M.M.; Ahammed, Z.; Allgower, C.; Amonett, J.; Anderson, B.D.; Anderson, M.; Arkhipkin, D.; Averichev, G.S.; Bai, Y.; Balewski, J.; Barannikova, O.; Barnby, L.S.; Baudot, J.; Bekele, S.; Belaga, V.V.; Bellwied, R.; Berger, J.; Bichsel, H.; Billmeier, A.; Bland, L.C.; Blyth, C.O.; Bonner, B.E.; Boucham, A.; Brandin, A.; Bravar, A.; Cadman, R.V.; Caines, H.; Calderon de la Barca Sanchez, M.; Cardenas, A.; Carroll, J.; Castillo, J.; Castro, M.; Cebra, D.; Chaloupka, P.; Chattopadhyay, S.; Chen, Y.; Chernenko, S.P.; Cherney, M.; Chikanian, A.; Choi, B.; Christie, W.; Coffin, J.P.; Cormier, T.M.; Corral, M.M.; Cramer, J.G.; Crawford, H.J.; Deng, W.S.; Derevschikov, A.A.; Didenko, L.; Dietel, T.; Draper, J.E.; Dunin, V.B.; Dunlop, J.C.; Eckardt, V.; Efimov, L.G.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Fachini, P.; Faine, V.; Faivre, J.; Fatemi, R.; Filimonov, K.; Finch, E.; Fisyak, Y.; Flierl, D.; Foley, K.J.; Fu, J.; Gagliardi, C.A.; Gagunashvili, N.; Gans, J.; Gaudichet, L.; Germain, M.; Geurts, F.; Ghazikhanian, V.; Grachov, O.; Grigoriev, V.; Guedon, M.; Guertin, S.M.; Gushin, E.; Hallman, T.J.; Hardtke, D.; Harris, J.W.; Heinz, M.; Henry, T.W.; Heppelmann, S.; Herston, T.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffmann, G.W.; Horsley, M.; Huang, H.Z.; Humanic, T.J.; Igo, G.; Ishihara, A.; Ivanshin, Yu.I.; Jacobs, P.; Jacobs, W.W.; Janik, M.; Johnson, I.; Jones, P.G.; Judd, E.G.; Kaneta, M.; Kaplan, M.; Keane, D.; Kiryluk, J.; Kisiel, A.; Klay, J.; Klein, S.R.; Klyachko, A.; Kollegger, T.; Konstantinov, A.; Kopytine, S.M.; Kotchenda, L.; Kovalenko, A.D.; Kramer, M.; Kravtsov, P.; Krueger, K.; Kuhn, C.; Kulikov, A.I.; Kunde, G.J.; Kunz, C.L.; Kutuev, R.K.; Kuznetsov, A.A.; Lamont, M.A.C.; Landgraf, J.M.; Lange, S.; Lansdell, C.P.; Lasiuk, B.; Laue, F.; Lauret, J.; Lebedev, A.; Lednicky, R.; Leontiev, V.M.; LeVine, M.J.; Li, Q.; Lindenbaum, S.J.; Lisa, M.A.; Liu, F.; Liu, L.; Liu, Z.; et al.

2004-04-07T23:59:59.000Z

406

Charged Higgs and Neutral Higgs pair production of weak gauge bosons fusion process in e+ e- collision  

E-Print Network [OSTI]

In this paper, we study the pair production and their decays of the Higges in the neutrinophilic Higgs two doublet model. The pair production occurs through W and Z gauge bosons fusion process. In the neutrinophilic model, the vacuum expectation value (VEV) of the second Higgs doublet is small and is proportional to the neutrino mass. The smallness of VEV is associated with the approximate global U(1) symmetry which is slightly broken. Therefore, there is a suppression factor for the U(1) charge breaking process. The second Higgs doublet has U(1) charge and its single production from the gauge boson fusion violates the U(1) charge conservation and is suppressed strongly to occur. In contrast to the single production, the pair production of the Higgses conserves U(1) charge and the approximate symmetry does not forbid it. To search for the pair productions in collider experiment,we study the production cross section of a pair of the charged Higgs and neutral Higgs bosons in e+ e- collision with center of energy from 600 (GeV) to 2000 (GeV). The total cross section varies from 10^{-4}(fb) to 10^{-3}(fb) for degenerate (200 GeV) charged and neutral Higgses mass case. The background process to the signal is gauge bosons pair W + Z production and their decays. We show the signal over background ratio is about 2% ~ 3% by combining the cross section ratio with ratios of branching fractions.

Takuya Morozumi; Kotaro Tamai

2014-03-31T23:59:59.000Z

407

Pair Interaction Potentials of Colloids by Extrapolation of Confocal Microscopy Measurements of Collective Structure  

E-Print Network [OSTI]

A method for measuring the pair interaction potential between colloidal particles by extrapolation measurement of collective structure to infinite dilution is presented and explored using simulation and experiment. The method is particularly well suited to systems in which the colloid is fluorescent and refractive index matched with the solvent. The method involves characterizing the potential of mean force between colloidal particles in suspension by measurement of the radial distribution function using 3D direct visualization. The potentials of mean force are extrapolated to infinite dilution to yield an estimate of the pair interaction potential, $U(r)$. We use Monte Carlo (MC) simulation to test and establish our methodology as well as to explore the effects of polydispersity on the accuracy. We use poly-12-hydroxystearic acid-stabilized poly(methyl methacrylate) (PHSA-PMMA) particles dispersed in the solvent dioctyl phthalate (DOP) to test the method and assess its accuracy for three different repulsive systems for which the range has been manipulated by addition of electrolyte.

Christopher R. Iacovella; Reginald R. Rogers; Sharon C. Glotzer; Michael J. Solomon

2010-10-27T23:59:59.000Z

408

Magnetic monopole loops supported by a meron pair as the quark confiner  

E-Print Network [OSTI]

We give a definition of gauge-invariant magnetic monopoles in Yang-Mills theory without using the Abelian projection due to 't Hooft. They automatically appear from the Wilson loop operator. This is shown by rewriting the Wilson loop operator using a non-Abelian Stokes theorem. The magnetic monopole defined in this way is a topological object of co-dimension 3, i.e., a loop in four-dimensions. We show that such magnetic loops indeed exist in four-dimensional Yang-Mills theory. In fact, we give an analytical solution representing circular magnetic monopole loops joining a pair of merons in the four-dimensional Euclidean SU(2) Yang-Mills theory. This is achieved by solving the differential equation for the adjoint color (magnetic monopole) field in the two--meron background field within the recently developed reformulation of the Yang-Mills theory. Our analytical solution corresponds to the numerical solution found by Montero and Negele on a lattice. This result strongly suggests that a meron pair is the most relevant quark confiner in the original Yang-Mills theory, as Callan, Dashen and Gross suggested long ago.

Kei-Ichi Kondo

2008-12-21T23:59:59.000Z

409

Pair-dominated GeV-optical flash in GRB 130427A  

E-Print Network [OSTI]

We show that the light curve of the double GeV+optical flash in GRB 130427A is consistent with radiation from the blast wave in a wind-type medium with density parameter $A=\\rho r^2\\sim 5\\times 10^{10}$ g cm$^{-1}$. The peak of the flash is emitted by copious $e^\\pm$ pairs created and heated in the blast wave; our first-principle calculation determines the pair-loading factor and temperature of the shocked plasma. Using detailed radiative transfer simulations we reconstruct the observed double flash. The optical flash is dominated by synchrotron emission from the thermal plasma behind the forward shock, and the GeV flash is produced via inverse Compton (IC) scattering by the same plasma. The seed photons for IC scattering are dominated by the prompt MeV radiation during the first tens of seconds, and by the optical to X-ray afterglow thereafter. IC cooling of the thermal plasma behind the forward shock reproduces all GeV data from a few seconds to $\\sim 1$ day. We find that the blast-wave Lorentz factor at th...

Vurm, Indrek; Beloborodov, Andrei M

2014-01-01T23:59:59.000Z

410

NNLO QCD corrections to Higgs pair production via vector boson fusion at hadron colliders  

E-Print Network [OSTI]

The measurement of the Higgs pair production via vector boson fusion can be used to test the trilinear Higgs self-coupling and the $VVHH$ $(V=Z,W)$ quartic gauge interactions. In this paper we present the calculations of the next-to-next-to-leading order (NNLO) QCD corrections to the SM Higgs boson pair production via vector boson fusion at hadron colliders with the center-of-mass energy of $14~{\\rm TeV}$, $33~{\\rm TeV}$ and $100~{\\rm TeV}$ by using the structure function approach, and study the residual uncertainties from the factorization/renormalization scale, parton distribution functions and $\\alpha_s$ on the total cross section. We also provide the distributions of transverse momenta, rapidities, invariant mass and azimuthal angle separations of final products. We observe a considerable quantitative reduction in the scale uncertainty due to the NNLO QCD corrections, and find that the total cross section is sensitive to the trilinear Higgs self-coupling.

Liu-Sheng, Ling; Wen-Gan, Ma; Lei, Guo; Wei-Hua, Li; Xiao-Zhou, Li

2014-01-01T23:59:59.000Z

411

NNLO QCD corrections to Higgs pair production via vector boson fusion at hadron colliders  

E-Print Network [OSTI]

The measurement of the Higgs pair production via vector boson fusion can be used to test the trilinear Higgs self-coupling and the $VVHH$ $(V=Z,W)$ quartic gauge interactions. In this paper we present the calculations of the next-to-next-to-leading-order QCD corrections to the SM Higgs boson pair production via vector boson fusion at hadron colliders with the center-of-mass energy of $14$, $33$, and $100 {\\rm TeV}$ by using the structure function approach, and study the residual uncertainties from the factorization/renormalization scale, parton distribution functions and $\\alpha_s$ on the total cross section. We also provide the distributions of transverse momenta, rapidities, invariant mass and azimuthal angle separations of final Higgs bosons. We observe a considerable quantitative reduction in the scale uncertainty due to the next-to-next-to-leading-order QCD corrections, and find that the total cross section is sensitive to the trilinear Higgs self-coupling.

Ling Liu-Sheng; Zhang Ren-You; Ma Wen-Gan; Guo Lei; Li Wei-Hua; Li Xiao-Zhou

2014-01-30T23:59:59.000Z

412

New Statistical Techniques in the Measurement of the inclusive Top Pair Production Cross Section  

E-Print Network [OSTI]

We present several different types of multivariate statistical techniques used in the measurement of the inclusive top pair production cross section in $p \\bar{p}$-collisions at $\\sqrt{s} = 1.96 \\text{TeV}$ employing the full RunII data ($9.7\\textrm{fb}^{-1}$) collected with the D0 detector at the Fermilab Tevatron Collider. We consider the final state of the top quark pair decays containing one electron or muon and at least two jets. We proceed various statistical homogeneity tests such as Anderson - Darling, Kolmogorov - Smirnov, and $\\varphi$-divergences tests to determine, which variables have good data-MC agreement, as well as a good separation power. We adjusted all tests for using weighted empirical distribution functions. Further we separate $t\\bar{t}$ signal from the background by the application of Generalized Linear Models, Gaussian Mixture Models), Neural Networks with Switching Units and confront them with familiar methods from ROOT TMVA package such as Boosted Decision Trees, and Multi-layer Per...

Franc, Ji?; t?pnek, Michal; K?s, Vclav

2014-01-01T23:59:59.000Z

413

Renormalization group-induced phenomena of top pairs from four-quark effective operators  

E-Print Network [OSTI]

We study the renormalization group(RG) evolution of four-quark operators that contribute to the top pair production. In particular, we focus on the cases in which certain observables are first induced from the one-loop RG while being absent at tree-level. From the operator mixing pattern, we classify all such RG-induced phenomena and underlying models that can induce them. We then calculate the full one-loop QCD RG evolution as the leading estimator of the effects and address the question of which RG-induced phenomena have largest and observable effects. The answer is related to the color structure of QCD. The studied topics include the RG-induction of top asymmetries, polarizations and polarization mixings as well as issues arising at this order. The RG-induction of top asymmetries is further compared with the generation of asymmetries from QCD and QED at one-loop order. We finally discuss the validity of using the RG as the proxy of one-loop effects on the top pair production. As an aside, we clarify the of...

Jung, Sunghoon; Yoon, Yeo Woong; Yu, Chaehyun

2014-01-01T23:59:59.000Z

414

Quasi-particle and collective magnetism: Rotation, pairing and blocking in high-K isomers  

SciTech Connect (OSTI)

For the first time, a wide range of collective magnetic g-factors gR, obtained from a novel analysis of experimental data for multi-quasi-particle configurations in high-K isomers, is shown to exhibit a striking systematic variation with the relative number of proton and neutron quasi-particles, Np Nn. Using the principle of additivity, the quasi-particle contribution to magnetism in high-K isomers of Lu Re, Z=71 75, has been estimated. Based on these estimates, band-structure branching ratio data are used to explore the behavior of the collective contribution as the number and proton/neutron nature (Np, Nn), of the quasi-particle excitations, change. Basic ideas of pairing, its quenching by quasi-particle excitation and the consequent changes to moment of inertia and collective magnetism are discussed. Existing model calculations do not reproduce the observed gR variation adequately. The paired superfluid system of nucleons in these nuclei, and their excitations, present properties of general physics interest. The new-found systematic behavior of gR in multi-quasi-particle excitations of this unique system, showing variation from close to zero for multi-neutron states to above 0.5 for multi-proton states, opens a fresh window on these effects and raises the important question of just which nucleons contribute to the collective properties of these nuclei.

Stone, N. J. [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK); Stone, Jirina R [ORNL] [ORNL; Walker, P. M. [University of Surrey, UK] [University of Surrey, UK; Bingham, C. R. [University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL)] [University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL)

2013-01-01T23:59:59.000Z

415

The curious case of HD41248. A pair of static signals buried behind red-noise  

E-Print Network [OSTI]

Gaining a better understanding of the effects of stellar induced radial velocity noise is critical for the future of exoplanet studies, since the discovery of the lowest-mass planets using this method will require us to go below the intrinsic stellar noise limit. An interesting test case in this respect is that of the southern solar analogue HD41248. The radial velocity time series of this star has been proposed to contain either a pair of signals with periods of around 18 and 25 days, that could be due to a pair of resonant super-Earths, or a single and varying 25 day signal that could arise due to a complex interplay between differential rotation and modulated activity. In this letter we build-up more evidence for the former scenario, showing that the signals are still clearly significant even after more than 10 years of observations and they likely do not change in period, amplitude, or phase as a function of time, the hallmarks of static Doppler signals. We show that over the last two observing seasons th...

Jenkins, James S

2014-01-01T23:59:59.000Z

416

Interstellar Hydroxyl Masers in the Galaxy. II. Zeeman Pairs and the Galactic Magnetic Field  

E-Print Network [OSTI]

We have identified and classified Zeeman pairs in the survey by Argon, Reid, & Menten of massive star-forming regions with 18 cm (2 Pi 3/2, J = 3/2) OH maser emission. We have found a total of more than 100 Zeeman pairs in more than 50 massive star-forming regions. The magnetic field deduced from the Zeeman splitting has allowed us to assign an overall line-of-sight magnetic field direction to many of the massive star-forming regions. Combining these data with other data sets obtained from OH Zeeman splitting, we have looked for correlations of magnetic field directions between star-forming regions scattered throughout the Galaxy. Our data do not support a uniform, Galactic-scale field direction, nor do we find any strong evidence of magnetic field correlations within spiral arms. However, our data suggest that in the Solar neighborhood the magnetic field outside the Solar circle is oriented clockwise as viewed from the North Galactic Pole, while inside the Solar circle it is oriented counterclockwise. This pattern, including the magnetic field reversal near the Sun, is in agreement with results obtained from pulsar rotation measures.

Vincent L. Fish; Mark J. Reid; Alice L. Argon; Karl M. Menten

2003-07-08T23:59:59.000Z

417

SATELLITES IN MILKY-WAY-LIKE HOSTS: ENVIRONMENT DEPENDENCE AND CLOSE PAIRS  

SciTech Connect (OSTI)

Previous studies showed that an estimate of the likelihood distribution of the Milky Way (MW) halo mass can be derived using the properties of the satellites similar to the Large and Small Magellanic Clouds (LMC and SMC). However, it would be straightforward to interpret such an estimate only if the properties of the Magellanic Clouds (MCs) are fairly typical and are not biased by the environment. In this study, we explore whether the environment of the MW affects the properties of the SMC and LMC such as their velocities. To test for the effect of the environment, we compare velocity distributions for MC-sized subhalos around MW hosts in a sample selected simply by mass and in the second sample of such halos selected with additional restrictions on the distance to the nearest cluster and the local galaxy density, designed to mimic the environment of the Local Group (LG). We find that satellites in halos in the LG-like environments do have somewhat larger velocities, as compared to the halos of similar mass in the sample without environmental constraints. For example, the fraction of subhalos matching the velocity of the LMC is 23% {+-} 2% larger in the LG-like environments. We derive the host halo likelihood distribution for the samples in the LG-like environment and in the control sample and find that the environment does not significantly affect the derived likelihood. We use the updated properties of the SMC and LMC to derive the constraint on the MW halo mass of log(M{sub 200}/M{sub Sun }) = 12.06{sub -0.19}{sup +0.31} (90% confidence interval). We also explore the incidence of close pairs with relative velocities and separations similar to those of the LMC and SMC and find that such pairs are quite rare among {Lambda}CDM halos. Only 2% of halos in the MW mass range have a relatively close pair ({Delta}r < 40 kpc and {Delta}s < 160 km s{sup -1}) of subhalos with circular velocities v{sub circ} > 50 km s{sup -1}. Pairs with masses and separations similar to those of the LMC and SMC ({Delta}r{sub MC} = 23.4 {+-} 10 kpc and {Delta}s{sub MC} = 128 {+-} 32 km s{sup -1}) are found only in one out of Almost-Equal-To 30, 000 MW-sized halos. Interestingly, the halo mass likelihood distribution for host halos constrained to have MC-like close pairs of subhalos is quite different from the global likelihood from which the MW halo mass constraint discussed above was derived. Taking into account the close separation of the MCs in the Busha et al. method results in the shift of the MW halo mass estimate to smaller masses, with the peak shifting approximately by a factor of two.

Gonzalez, Roberto E.; Kravtsov, Andrey V.; Gnedin, Nickolay Y., E-mail: regonzar@oddjob.uchicago.edu [Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637 (United States)

2013-06-20T23:59:59.000Z

418

THE ENIGMATIC PAIR OF DWARF GALAXIES LEO IV AND LEO V: COINCIDENCE OR COMMON ORIGIN?  

SciTech Connect (OSTI)

We have obtained deep photometry in two 1{sup 0} x 1{sup 0} fields covering the close pair of dwarf spheroidal galaxies Leo IV and Leo V and part of the area in between. From the distribution of likely red giant branch (RGB) and horizontal-branch (HB) stars in the data set, we find that both Leo IV and Leo V are significantly larger than indicated by previous measurements based on shallower data. With a half-light radius of r{sub h} = 4.'6 +- 0.'8 (206 +- 36 pc) and r{sub h} = 2.'6 +- 0.'6 (133 +- 31 pc), respectively, both systems are now well within the physical size bracket of typical dwarf spheroidal Milky Way satellites. Both are also found to be significantly elongated with an ellipticity of epsilon {approx_equal} 0.5, a characteristic shared by many of the fainter (M{sub V} > - 8) Milky Way dwarf spheroidals. The large spatial extent of our survey allows us to search for extra-tidal features in the area between the two dwarf galaxies with unprecedented sensitivity. The spatial distribution of candidate RGB and HB stars in this region is found to be non-uniform at the {approx}3sigma level. Interestingly, this substructure is aligned along the direction connecting the two systems, indicative of a possible 'bridge' of extra-tidal material. Fitting the stellar distribution with a linear Gaussian model yields a significance of 4sigma for this overdensity, a most likely FWHM of {approx}16 arcmin, and a central surface brightness of {approx_equal}32 mag arcsec{sup -2}. We investigate different scenarios to explain the close proximity of Leo IV and Leo V, and the possible tidal bridge between them. Orbit calculations demonstrate that the two systems cannot share the exact same orbit, while a compromise orbit does not approach the Galactic center more than {approx}160 kpc, rendering it unlikely that they are remnants of a single disrupted progenitor. A comparison with cosmological simulations shows that a chance collision between unrelated subhalos is negligibly small. Given their relative distance and velocity, Leo IV and Leo V could be a bound 'tumbling pair', if their combined mass exceeds (8 +- 4) x 10{sup 9} M{sub sun}. The scenario of an internally interacting pair that fell into the Milky Way together appears to be the most viable explanation for this close celestial companionship.

De Jong, Jelte T. A.; Martin, Nicolas F.; Rix, Hans-Walter; Smith, Kester W.; Maccio, Andrea V. [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany); Jin, Shoko, E-mail: dejong@mpia.d [Astronomisches Rechen-Institut, Zentrum fuer Astronomie der Universitaet Heidelberg, Moenchhofstrasse 12-14, D-69120 Heidelberg (Germany)

2010-02-20T23:59:59.000Z

419

Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-Tc Superconductor  

SciTech Connect (OSTI)

We report the discovery of a self-doped multi-layer high T{sub c} superconductor Ba{sub 2}Ca{sub 3}Cu{sub 4}O{sub 8}F{sub 2} (F0234) which contains distinctly different superconducting gap magnitudes along its two Fermi surface(FS) sheets. While formal valence counting would imply this material to be an undoped insulator, it is a self-doped superconductor with a T{sub c} of 60K, possessing simultaneously both electron- and hole-doped FS sheets. Intriguingly, the FS sheet characterized by the much larger gap is the electron-doped one, which has a shape disfavoring two electronic features considered to be important for the pairing mechanism: the van Hove singularity and the antiferromagnetic ({pi}/a, {pi}/a) scattering.

Chen, Y.

2010-05-03T23:59:59.000Z

420

Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-T(c) Superconductor  

SciTech Connect (OSTI)

We report the discovery of a self-doped multilayer high T{sub c} superconductor Ba{sub 2}Ca{sub 3}Cu{sub 4}O{sub 8}F{sub 2} (F0234) which contains distinctly different superconducting gap magnitudes along its two Fermi-surface sheets. While formal valence counting would imply this material to be an undoped insulator, it is a self-doped superconductor with a T{sub c} of 60 K, possessing simultaneously both electron- and hole-doped Fermi-surface sheets. Intriguingly, the Fermi-surface sheet characterized by the much larger gap is the electron-doped one, which has a shape disfavoring two electronic features considered to be important for the pairing mechanism: the van Hove singularity and the antiferromagnetic ({pi}/{alpha}, {pi}/{alpha}) scattering.

Chen, Yulin; Iyo, Akira; Yang, Wanli; Zhou, Xingjiang; Lu, Donghui; Eisaki, Hiroshi; Devereaux, Thomas P.; Hussain, Zahid; Shen, Z.-X.; /Stanford U., Phys. Dept. /SLAC,

2007-02-12T23:59:59.000Z

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421

Photoassociation of a cold-atom-molecule pair: Long-range quadrupole-quadrupole interactions  

SciTech Connect (OSTI)

The general formalism of the multipolar expansion of electrostatic interactions is applied to the calculation of the potential energy between an excited atom (without fine structure) and a ground-state diatomic molecule at large mutual separations. Both partners exhibit a permanent quadrupole moment so that their mutual long-range interaction is dominated by a quadrupole-quadrupole term, which is attractive enough to bind trimers. Numerical results are given for an excited Cs(6{sup 2}P) atom and a ground-state Cs{sub 2} molecule. The prospects for achieving photoassociation of a cold-atom-dimer pair are thus discussed and found promising. The formalism can be generalized to the long-range interaction between molecules to investigate the formation of cold tetramers.

Lepers, M.; Dulieu, O. [Laboratoire Aime Cotton, CNRS, UPR3321, Batiment 505, Universite Paris-Sud, F-91405 Orsay Cedex (France); Kokoouline, V. [Laboratoire Aime Cotton, CNRS, UPR3321, Batiment 505, Universite Paris-Sud, F-91405 Orsay Cedex (France); Department of Physics, University of Central Florida, Orlando, Florida 32816 (United States)

2010-10-15T23:59:59.000Z

422

Bose-Einstein condensation in finite noninteracting systems: A relativistic gas with pair production. II  

Science Journals Connector (OSTI)

An asymptotic evaluation of the specific heat of an ideal relativistic Bose gas confined to a cuboidal enclosure (L1L2L3) is carried out, under periodic boundary conditions, taking into account the possibility of particle-antiparticle pair production in the system. Finite-size corrections to the standard bulk behavior are calculated explicitly in the regions t>0 and t0 finite-size corrections turn out to be exponential for all geometries, for t<0 this is true only in the case of a film; for other geometries, such as a cuboid or a rectangular channel, these corrections conform to a power law instead. Finally, we consider the situation in the core region, where | Lit |=O(1), and examine the location t* and the height c?* of the specific-heat maximum; finite-size corrections in this region turn out to be O(L<-1), where L< denotes the shortest side of the enclosure.

Surjit Singh and R. K. Pathria

1984-12-01T23:59:59.000Z

423

Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities  

E-Print Network [OSTI]

In the Solar system the planets' compositions vary with orbital distance, with rocky planets in close orbits and lower-density gas giants in wider orbits. The detection of close-in giant planets around other stars was the first clue that this pattern is not universal, and that planets' orbits can change substantially after their formation. Here we report another violation of the orbit-composition pattern: two planets orbiting the same star with orbital distances differing by only 10%, and densities differing by a factor of 8. One planet is likely a rocky `super-Earth', whereas the other is more akin to Neptune. These planets are thirty times more closely spaced--and have a larger density contrast--than any adjacent pair of planets in the Solar system.

Carter, Joshua A; Chaplin, William J; Basu, Sarbani; Bedding, Timothy R; Buchhave, Lars A; Christensen-Dalsgaard, Jrgen; Deck, Katherine M; Elsworth, Yvonne; Fabrycky, Daniel C; Ford, Eric B; Fortney, Jonathan J; Hale, Steven J; Handberg, Rasmus; Hekker, Saskia; Holman, Matthew J; Huber, Daniel; Karoff, Christopher; Kawaler, Steven D; Kjeldsen, Hans; Lissauer, Jack J; Lopez, Eric D; Lund, Mikkel N; Lundkvist, Mia; Metcalfe, Travis S; Miglio, Andrea; Rogers, Leslie A; Stello, Dennis; Borucki, William J; Bryson, Steve; Christiansen, Jessie L; Cochran, William D; Geary, John C; Gilliland, Ronald L; Haas, Michael R; Hall, Jennifer; Howard, Andrew W; Jenkins, Jon M; Klaus, Todd; Koch, David G; Latham, David W; MacQueen, Phillip J; Sasselov, Dimitar; Steffen, Jason H; Twicken, Joseph D; Winn, Joshua N

2012-01-01T23:59:59.000Z

424

Non-collapsing renormalized QRPA with proton-neutron pairing for neutrinoless double beta decay  

E-Print Network [OSTI]

Using the renormalized quasiparticle random phase approximation (RQRPA), we calculate the light neutrino mass mediated mode of neutrinoless double beta decay of Ge76, Mo100, Te128 and Te130. Our results indicate that the simple quasiboson approximation is not good enough to study the neutrinoless double beta decay, because its solutions collapse for physical values of g_pp. We find that extension of the Hilbert space and inclusion of the Pauli Principle in the QRPA with proton-neutron pairing, allows us to extend our calculations beyond the point of collapse, for physical values of the nuclear force strength. As a consequence one might be able to extract more accurate values on the effective neutrino mass by using the best available experimental limits on the half-life of neutrinoless double beta decay.

F. Simkovic; J. Schwieger; M. Veselsky; G. Pantis; Amand Faessler

1996-12-14T23:59:59.000Z

425

Search for first generation leptoquark pair production in the electron + missing energy + jets final state  

SciTech Connect (OSTI)

We present a search for the pair production of first generation scalar leptoquarks (LQ) in data corresponding to an integrated luminosity of 5.4 fb{sup -1} collected with the D0 detector at the Fermilab Tevatron Collider in pp collisions at {radical}(s)=1.96 TeV. In the channel LQLQ{yields}eq{nu}{sub e}q{sup '}, where q, q{sup '} are u or d quarks, no significant excess of data over background is observed, and we set a 95% C.L. lower limit of 326 GeV on the LQ mass, assuming equal probabilities of LQ decays to eq and {nu}{sub e}q{sup '}.

Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Abbott, B.; Gutierrez, P.; Jayasinghe, A.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P. [University of Oklahoma, Norman, Oklahoma 73019 (United States); Acharya, B. S.; Banerjee, S.; Mondal, N. K. [Tata Institute of Fundamental Research, Mumbai (India); Adams, M.; Bazterra, V. [University of Illinois at Chicago, Chicago, Illinois 60607 (United States)

2011-10-01T23:59:59.000Z

426

Collective Cooper-pair transport in the insulating state of Josephson-junction arrays.  

SciTech Connect (OSTI)

We investigate collective Cooper-pair transport of one- and two-dimensional Josephson-junction arrays. We derive an analytical expression for the current-voltage characteristic revealing thermally activated conductivity at small voltages and threshold voltage depinning. The activation energy and the related depinning voltage represent a dynamic Coulomb barrier for collective charge transfer over the whole system and scale with the system size. We show that both quantities are nonmonotonic functions of the magnetic field. We propose that formation of the dynamic Coulomb barrier and its size scaling are consequences of the mutual Josephson phase synchronization across the system. We apply the results for interpretation of experimental data in disordered films near the superconductor-insulator transition.

Fistul, M. V.; Vinokur, V. M.; Baturina, T. I.; Materials Science Division; Ruhr-Univ. Bochum; Inst. Semiconductor Physics

2008-02-01T23:59:59.000Z

427

Identification of the gallium vacancy-oxygen pair defect in GaN  

SciTech Connect (OSTI)

Cation vacancies like V{sub Ga}, V{sub Al} and their complexes with oxygen are predicted to be abundant in III-nitrides and to play an important role in nonradiative recombination. Appearing in triple or double negatively charged states, they are not paramagnetic and have not so far been detected by magnetic resonance even under illumination. In this Brief Report, we demonstrate an efficient way to make cation vacancy defects in GaN detectable by electron paramagnetic resonance and present our identification of the V{sub Ga}O{sub N} pair in GaN which is the model material for the III-nitrides and their alloys.

Son, N. T.; Hemmingsson, C. G.; Janzen, E. [Department of Physics, Chemistry and Biology, Linkoeping University, SE-581 83 Linkoeping (Sweden); Paskova, T.; Evans, K. R. [Kyma Technologies Inc., 8829 Midway West Road, Raleigh, North Carolina 27617 (United States); Usui, A. [R and D Division, Furukawa Co., Ltd., Tsukuba, Ibaraki 305-0856 (Japan); Morishita, N.; Ohshima, T. [Japan Atomic Energy Agency, 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan); Isoya, J. [Graduate School of Library, Information and Media Studies, University of Tsukuba, Tsukuba, Ibaraki 305-8550 (Japan); Monemar, B. [Department of Physics, Chemistry and Biology, Linkoeping University, SE-581 83 Linkoeping (Sweden); Nanometer Structure Consortium, Lund University, P.O. Box 118, S-221 00 Lund (Sweden)

2009-10-15T23:59:59.000Z

428

Molecular Hydrogen Formation from Proximal Glycol Pairs on TiO2(110)  

SciTech Connect (OSTI)

Understanding hydrogen formation on TiO2 surfaces is of great importance as it could provide fundamental insight into water splitting for hydrogen production using solar energy. In this work, hydrogen formation from glycols having different numbers of methyl end-groups have been studied using temperature pro-grammed desorption on reduced, hydroxylated, and oxidized TiO2(110) surfaces. The results from OD-labeled glycols demon-strate that gas-phase molecular hydrogen originates exclusively from glycol hydroxyl groups. The yield is controlled by a combi-nation of glycol coverage, steric hindrance, TiO2(110) order and the amount of subsurface charge. Combined, these results show that proximal pairs of hydroxyl aligned glycol molecules and subsurface charge are required to maximize the yield of this redox reaction. These findings highlight the importance of geometric and electronic effects in hydrogen formation from adsorbates on TiO2(110).

Chen, Long; Li, Zhenjun; Smith, R. Scott; Kay, Bruce D.; Dohnalek, Zdenek

2014-04-16T23:59:59.000Z

429

Calculations on spin-paired species in metal-ammonia solutions  

SciTech Connect (OSTI)

In this paper we show that the spin-paired species in ammonia is consistent with a cluster of two single-electron ammoniated cavity species held together by a cation, also probably solvated. With the electronic part of the wave functions for the ammoniated electron as determined by Newton, the ground-state electronic configuration is a singlet and the singlet-triplet separation is calculated to be about 0.1 eV. The spectrum of the individual cavity species is only shifted by a few hundredths of an electronvolt based on perturbation calculations. These data are consistent with the experimental values recently found by Schindewolf and Werner, who have other data which support the particular species studied in this paper.

Kestner, N.R.; Rao, B.K.; Finley, C.W.

1983-04-14T23:59:59.000Z

430

Search for the associated production of the Higgs boson with a top-quark pair  

E-Print Network [OSTI]

A search for the standard model Higgs boson produced in association with a top-quark pair (t tbar H) is presented, using data samples corresponding to integrated luminosities of up to 5.1 inverse femtobarns and 19.7 inverse femtobarns collected in pp collisions at center-of-mass energies of 7 TeV and 8 TeV respectively. The search is based on the following signatures of the Higgs boson decay: H to hadrons, H to photons, and H to leptons. The results are characterized by an observed t tbar H signal strength relative to the standard model cross section, mu = sigma/sigma[SM], under the assumption that the Higgs boson decays as expected in the standard model. The best fit value is mu = 2.8 +/- 1.0 for a Higgs boson mass of 125.6 GeV.

CMS Collaboration

2014-09-18T23:59:59.000Z

431

Advanced Residential Envelopes for Two Pair of Energy-Saver Homes  

SciTech Connect (OSTI)

Four homes are under construction in the Tennessee Valley to showcase homes that are at least 50% energy savers as compared to homes built to local code. Schaad Companies LLC, the Tennessee Valley Authority (TVA), the Oak Ridge National Laboratory (ORNL), Barber McMurry Architects (BMA) and the Department of Energy (DOE) intend to transform new and existing buildings into affordable, durable and efficient housing. All formed a private- and federal-sector consortium herein called the Zero Energy Building Research Alliance (ZEBRA). The consortium is about to evaluate the market viability for making two pairs of homes 50 percent more energy efficient than homes of similar size and style. Achieving the goal requires the most advanced building technology, products and techniques available. The homes are located on adjacent cul-de-sacs and are unoccupied for the duration of a two-year field study, thereby eliminating the confounding issue of occupancy habits.

Miller, William A [ORNL] [ORNL; Karagiozis, Achilles N [ORNL] [ORNL; Kosny, Jan [ORNL] [ORNL; Shrestha, Som S [ORNL] [ORNL; Christian, Jeffrey E [ORNL] [ORNL; Kohler, Christian [Lawrence Berkeley National Laboratory (LBNL)] [Lawrence Berkeley National Laboratory (LBNL); Dinse, David [Tennessee Valley Authority (TVA)] [Tennessee Valley Authority (TVA)

2010-01-01T23:59:59.000Z

432

Inclusive top pair production at Tevatron and LHC in electron/muon final states  

E-Print Network [OSTI]

Recent measurements of the inclusive top pair production at the Tevatron and LHC collider in the electron/muon final states are discussed. Measurements at the Tevatron use up to 9.7 /fb of data, and at the LHC up to 4.9 /fb of data at $\\sqrt{s}=7$ TeV and up to 20.3 /fb of data at $\\sqrt{s}=8$ TeV. For the experiments at both colliders these corresponds to the full data sets at the given center-of-mass energies. Overall results are in agreement between the experiments at the Tevatron and between the experiments at the LHC. All measurements are in agreement with recent theory calculations at NNLO QCD. Individual LHC measurements are challenging the precision of the theory calculations.

Andreas Werner Jung

2013-12-23T23:59:59.000Z

433

Conformal Transformations and Strings for an Accelerating Quark-Antiquark Pair in AdS3  

E-Print Network [OSTI]

From a simple moving open string solution dual to a moving heavy quark with constant velocity in the Poincare AdS_3 spacetime, we construct an accerlerating open string solution dual to a heavy quark-antiquark pair accelerated in opposite directions by performing the three mappings such as the SL(2,R)_L x SL(2,R)_R isometry transformation, the special conformal transformation and the conformal SO(2,2) transformation. Using the string sigma model action we construct two open string solutions staying in two different regions whose dividing line is associated with the event horizon appeared on the string worldsheet and obtain the accelerating open string solution by gluing two such solutions.

Shijong Ryang

2014-12-08T23:59:59.000Z

434

Multi-range free-electron laser with a pair of dielectric multilayer mirrors  

SciTech Connect (OSTI)

We report the experimental achievement of a free-electron laser in three wavelength regions, mid-infrared, near-infrared, and visible, using a pair of dielectric multilayer mirrors in the storage ring NIJI-IV. Dielectric multilayer mirrors can have high reflectivity at wavelength regions corresponding to higher-diffraction orders of the target wavelength. A narrowing of the relative bandwidth of the dielectric multilayer mirrors was observed in the higher-diffraction orders of the target wavelength and was found to be caused by high diffraction and carbon contamination. Our experimental results will be applied to development of a multi-rang laser that have a gain in a wade wavelength region.

Sei, Norihiro; Ogawa, Hiroshi; Yamada, Kawakatsu [Research Institute of Instrumentation Frontier, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan)

2012-10-01T23:59:59.000Z

435

Neutrino emission by the pair, plasma, and photo processes in the Weinberg-Salam model  

SciTech Connect (OSTI)

The results of numerical integrations of the rates and emissivities of the photo, pair, and plasma neutrino emission mechanisms in the Weinberg-Salam theory of the weak interaction are presented. The range of densities 10 gm cm/sup -3/ less than or equal to rho < 10/sup 14/ gm cm/sup -3/ and the temperature range 10/sup 8/K less than or equal to T less than or equal to 10/sup 11/K are considered. Fitting formulae, similar to those provided by Beaudet, Petrosian, and Salpeter, which reproduce the numerical result for the total emissivity to within 20% in the temperature range 10/sup 8.2/K less than or equal to T less than or equal to 10/sup 11/K are presented. 24 refs., 21 figs., 1 tab.

Schinder, P.J.; Schramm, D.N.; Witta, P.J.; Margolis, S.H.; Tubbs, D.L.

1986-06-01T23:59:59.000Z

436

Diffractive production of charm quark/antiquark pairs at RHIC and LHC  

SciTech Connect (OSTI)

We have discussed single and central diffractive production of c(bar sign)c pairs in the Ingelman-Schlein model. In these calculations we have included diffractive parton distributions obtained by the H1 collaboration at HERA and absorption effects neglected in some early calculations in the literature. The absorption effects which are responsible for the naive Regge factorization breaking cause that the cross section for diffractive processes is much smaller than that for the fully inclusive case, but could be measured at RHIC and LHC by imposing special condition on rapidity gaps. We discuss also different approaches to diffractive production of heavy quark/antiquark [1, 2, 3]. The particular mechanism is similar to the diffractive dissociation of virtual photons into quarks, which drives diffractive deep inelastic production of charm in the low-mass diffraction, or large {beta}-region.

Luszczak, Marta [University of Rzeszow, PL-35-959 Rzeszow (Poland); Szczurek, Antoni [Institute of Nuclear Physics PAN, PL-31-342 Cracow and University of Rzeszow, PL-35-959 Rzeszow (Poland)

2013-04-15T23:59:59.000Z

437

Pairing and phase separation in BiO3-based superconductors  

Science Journals Connector (OSTI)

We study a model proposed before to give rise to a nonconventional pairing mechanism in BaPb1-xBixO3 and Ba1-xKxBiO3. This model, in which both phonons and electronic excitations play an essential role, is supported by experimental evidence. We solve exactly a BiO6 cluster and we calculate the interaction between this cluster and the rest of the system using perturbation theory in the hopping term. The holes introduced by doping form groups of n holes where n depends essentially on the values of the electron-phonon interaction, Bi-O repulsion, and Bi-O hopping. n=2 is favored near the limit at which the disproportionated ground state becomes unstable.

A. A. Aligia and M. Balia

1993-06-01T23:59:59.000Z

438

Complete population transfer in a three-state quantum system by a train of pairs of coincident pulses  

E-Print Network [OSTI]

A technique for complete population transfer between the two end states $\\ket{1}$ and $\\ket{3}$ of a three-state quantum system with a train of $N$ pairs of resonant and coincident pump and Stokes pulses is introduced. A simple analytic formula is derived for the ratios of the pulse amplitudes in each pair for which the maximum transient population $P_2(t)$ of the middle state $\\ket{2}$ is minimized, $P_2^{\\max}=\\sin^2(\\pi/4N)$. It is remarkable that, even though the pulses are on exact resonance, $P_2(t)$ is damped to negligibly small values even for a small number of pulse pairs. The population dynamics resembles generalized $\\pi$-pulses for small $N$ and stimulated Raman adiabatic passage for large $N$ and therefore this technique can be viewed as a bridge between these well-known techniques.

Andon A. Rangelov; Nikolay V. Vitanov

2012-01-04T23:59:59.000Z

439

Apparatus And Method For Reducing Drag Of A Bluff Body In Ground Effect Using Counter-Rotating Vortex Pairs  

DOE Patents [OSTI]

An aerodynamic base drag reduction apparatus and method for bluff bodies, such as tractor-trailer trucks, utilizing a pair of lift surfaces extending to lift surface tips and located alongside the bluff body such as on opposing left and right side surfaces. In a flowstream substantially parallel to the longitudinal centerline of the bluff body, the pair of lift surfaces generate a pair of counter-rotating trailing vortices which confluence together in the wake of the bluff body in a direction orthogonal to the flowstream. The confluence draws or otherwise turns the flowstream, such as the flowstream passing over a top surface of the bluff body, in and around behind a trailing end of the bluff body to raise the pressure on a base surface at the trailing end and thereby reduce the aerodynamic base drag.

Ortega, Jason M. (Pacifica, CA); Salari, Kambiz (Livermore, CA)

2005-08-09T23:59:59.000Z

440

Apparatus And Method For Reducing Drag Of A Bluff Body In Ground Effect Using Counter-Rotating Vortex Pairs  

DOE Patents [OSTI]

An aerodynamic base drag reduction apparatus and method for bluff bodies, such as tractor-trailer trucks, utilizing a pair of lift surfaces extending to lift surface tips and located alongside the bluff body such as on opposing left and right side surfaces. In a flowstream substantially parallel to the longitudinal centerline of the bluff body, the pair of lift surfaces generate a pair of counter-rotating trailing vortices which confluence together in the wake of the bluff body in a direction orthogonal to the flowstream. The confluence draws or otherwise turns the flowstream, such as the flowstream passing over a top surface of the bluff body, in and around behind a trailing end of the bluff body to raise the pressure on a base surface at the trailing end and thereby reduce the aerodynamic base drag.

Ortega, Jason M. (Pacifica, CA); Sabari, Kambiz (Livermore, CA)

2005-12-27T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Effects of R-parity violating supersymmetry in top pair production at linear colliders with polarized beams  

E-Print Network [OSTI]

In the minimal supersymmetric standard model with R-parity violation, the lepton number violating top quark interactions can contribute to the top pair production at a linear collider via tree-level u-channel squark exchange diagrams. We calculate such contributions and find that in the allowed range of these R-violating couplings, the top pair production rate as well as the top quark polarization and the forward-backward asymmetry can be significantly altered. By comparing the unpolarized beams with the polarized beams, we find that the polarized beams are more powerful in probing such new physics.

Xuelei Wang; Jitao Li; Suzhen Liu

2006-11-06T23:59:59.000Z

442

Photoinduced Water Oxidation by a Tetraruthenium Polyoxometalate Catalyst: Ion-pairing and Primary Processes with Ru(bpy)32+ Photosensitizer  

Science Journals Connector (OSTI)

Photoinduced Water Oxidation by a Tetraruthenium Polyoxometalate Catalyst: Ion-pairing and Primary Processes with Ru(bpy)32+ Photosensitizer ... Two interrelated issues relevant to this behavior have been examined in detail: (i) the effects of ion pairing between the polyanionic catalyst and the cationic Ru(bpy)32+ sensitizer, and (ii) the kinetics of hole transfer from the oxidized sensitizer to the catalyst. ... This process competes appreciably with the primary photoreaction of the excited sensitizer with the sacrificial oxidant, even in high ionic strength media. ...

Mirco Natali; Michele Orlandi; Serena Berardi; Sebastiano Campagna; Marcella Bonchio; Andrea Sartorel; Franco Scandola

2012-06-11T23:59:59.000Z

443

Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at \\(\\sqrt{s}=7\\,\\text {TeV} \\)  

Science Journals Connector (OSTI)

A measurement of differential cross sections for the production of a pair of isolated photons in protonproton collisions at $$\\sqrt{s...

S. Chatrchyan; V. Khachatryan; A. M. Sirunyan

2014-11-01T23:59:59.000Z

444

Stability of non-Watson-Crick G-A/A-G base pair in synthetic DNA and RNA oligonucleotides  

Science Journals Connector (OSTI)

A non-Watson-Crick G-A/A-G base pair is found in SECIS (selenocysteine-insertion sequence) element in the 3?-untranslated region of Se-protein mRNAs and in the functional site of the hammerhead ribozyme. We st...

Yuko Ito; Yumiko Sone; Takaharu Mizutani

2004-03-01T23:59:59.000Z

445

The direct production of electron pairs by high-energy muons underground (148 m w.e.)  

Science Journals Connector (OSTI)

Direct production of electron pairs in thin iron targets by muons of mean energy 32.6 GeV was studied with a ... two or more electrons associated with each outgoing muon from the targets were selected and their energy

N. Chaudhuri; M. S. Sinha

1964-01-16T23:59:59.000Z

446

A remeasurement of the 2:4lm spectrum of J 1 H2 pairs in a parahydrogen crystalq  

E-Print Network [OSTI]

Note A remeasurement of the 2:4lm spectrum of J ¼ 1 H2 pairs in a parahydrogen crystalq C. Michael near the natural vibrational band centers of H2 (the strongest being the v ¼ 1 0 at $2:4lm

Lindsay, C. Michael

447

A modified nuclear mass formula with a unified prescription for the shell and pairing corrections Haifei Zhang1  

E-Print Network [OSTI]

A modified nuclear mass formula with a unified prescription for the shell and pairing corrections Haifei Zhang1 , Jianmin Dong2 , Nana Ma1 , Hongfei Zhang1 , and Junqing Li1,2 1School of Nuclear Science Mines, 4 rue A. Kastler, 44307 Nantes Cedex 03,France A modified macroscopic-microscopic nuclear mass

Boyer, Edmond

448

Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs  

Science Journals Connector (OSTI)

Abstract Constraints are presented on the total width of the recently discovered Higgs boson, ? H , using its relative on-shell and off-shell production and decay rates to a pair of Z bosons, where one Z boson decays to an electron or muon pair, and the other to an electron, muon, or neutrino pair. The analysis is based on the data collected by the CMS experiment at the LHC in 2011 and 2012, corresponding to integrated luminosities of 5.1 fb ? 1 at a center-of-mass energy s = 7 TeV and 19.7 fb ? 1 at s = 8 TeV . A simultaneous maximum likelihood fit to the measured kinematic distributions near the resonance peak and above the Z-boson pair production threshold leads to an upper limit on the Higgs boson width of ? H < 22 MeV at a 95% confidence level, which is 5.4 times the expected value in the standard model at the measured mass of m H = 125.6 GeV .

2014-01-01T23:59:59.000Z

449

Modulational instability of two pairs of counter-propagating waves and energy exchange in two-component media  

E-Print Network [OSTI]

Modulational instability of two pairs of counter-propagating waves and energy exchange in two-propagating waves in two-component media is considered within the framework of two generally nonintegrable coupled Sine-Gordon equations. We consider the dynamics of weakly nonlinear wave packets, and using

450

Triplet pair correlations and nonmonotonic supercurrent decay with Cr thickness in Nb/Cr/Fe/Nb Josephson devices  

E-Print Network [OSTI]

roughness and interdiffusion, an antiferromagnetic spin density wave (SDW) state can still form in Cr close to the interface. Here, we show evidence for triplet pair correlations in Josephson junctions with Cr/Fe and Cr/Fe/Cr barriers. Although the exact...

Robinson, J. W. A.; Banerjee, N.; Blamire, M. G.

2014-03-05T23:59:59.000Z

451

Investigation on Per- and Polyfluorinated Compounds in Paired Samples of House Dust and Indoor Air from Norwegian Homes  

Science Journals Connector (OSTI)

Investigation on Per- and Polyfluorinated Compounds in Paired Samples of House Dust and Indoor Air from Norwegian Homes ... (13) It turned out that the percentage of home carpeting was positively correlated to these compounds, and as old houses tended to have less carpeting this was suggested to be the reason for the lower PFC levels found in the old houses. ...

Line S. Haug; Sandra Huber; Martin Schlabach; Georg Becher; Cathrine Thomsen

2011-03-18T23:59:59.000Z

452

Measurement of the Inclusive Leptonic Asymmetry in Top-Quark Pairs that Decay to Two Charged Leptons at CDF  

SciTech Connect (OSTI)

We measure the inclusive forward-backward asymmetry of the charged-lepton pseudorapidities from top-quark pairs produced in proton-antiproton collisions, and decaying to final states that contain two charged leptons (electrons or muons), using data collected with the Collider Detector at Fermilab.

Aaltonen, Timo Antero; et al.,

2014-07-23T23:59:59.000Z

453

|_Published_in_International_Journal_of_Modern_PhysicsA_11_3667_-_3688_(1996)* PAIRED ACCELERATED FRAMESy  

E-Print Network [OSTI]

_in_International_Journal_of_Modern_PhysicsA_11_3667_-_3688_(1996)* *|_ PAIRED ACCELERATED FRAMESy* *teractions. In addition, the Lorentz invariance of the acceleration temperature * *is made of quantum mechanics instead. 1. The Acceleration Temperature Nowadays, except for the energy E = ~h

Gerlach, Ulrich

454

Published in International Journal of Modern Physics A 11 3667 \\Gamma 3688 (1996) PAIRED ACCELERATED FRAMES y  

E-Print Network [OSTI]

ACCELERATED FRAMES y ULRICH H. GERLACH Department of Mathematics, Ohio State University, Columbus, OH 43210 are based on pairs of causally disjoint accelerated frames. For bosons the expected spin vector in the presence of quadratic interactions. In addition, the Lorentz invariance of the acceleration temperature

Gerlach, Ulrich

455

Refeeding after acute food restriction: Differential reduction in preference for ethanol and ethanol-paired flavors in selectively bred rats  

Science Journals Connector (OSTI)

Abstract Rats' voluntary ethanol intake varies with dispositional factors and energy status. The joint influences of these were of interest here. We previously reported that rats selectively bred for high voluntary saccharin intake (HiS) consume more ethanol and express more robust conditioning of preference for flavors paired with voluntarily consumed ethanol than do low-saccharin consuming counterparts (LoS). Three new experiments examined the effect of refeeding after an episode of food restriction on ethanol intake and on preference for ethanol-paired flavors in HiS and LoS rats. A 48-h episode of food restriction with wheel running reduced intake of and preference for 4% ethanol (Exp. 1a) and preference for an ethanol-paired flavor (Exp. 1b) during refeeding. Food restriction alone was sufficient to reduce the flavor preference (Exp. 2). Adding fat to the refeeding diet or extending the food restriction period exacerbated the effect (Exp. 3), yielding a frank aversion to ethanol-paired flavors in LoS rats. These studies indicate that rebound from negative energy balance shifts responses to ethanol-associated cues from preference toward aversion. Analyses of bodyweight changes and caloric intake during refeeding support this conclusion and further suggest that lower metabolic efficiency may be a marker for enhanced preference mutability.

Nancy K. Dess; Clinton D. Chapman; Laura A. Cousins; Derek C. Monroe; Phuong Nguyen

2013-01-01T23:59:59.000Z

456

An Experimental Comparison of Four Unit Test Criteria: Mutation, Edge-Pair, All-uses and Prime Path Coverage  

E-Print Network [OSTI]

Java. The findings are that mu- tation tests detected more faults and the other three crite- ria were very similarAn Experimental Comparison of Four Unit Test Criteria: Mutation, Edge-Pair, All-uses and Prime Path for quality, and the growth of agile processes and test driven development, de- velopers are expected to do

Offutt, Jeff

457

Abstract--Many surgical robots use cable-conduit pairs in a pull-pull configuration to actuate the instruments  

E-Print Network [OSTI]

Abstract-- Many surgical robots use cable-conduit pairs in a pull-pull configuration to actuate the instruments and transmit power into the patient's body. Friction between the cable and the conduit makes the system nonlinear and accounts for major losses in tension transmission across the cable. This paper

Yao, Bin

458

Developing a Model to Predict Canada Goose Breeding Pair Densities in the Midwest Using National Wetlands Inventory Data  

E-Print Network [OSTI]

Wetlands Inventory Data Principal Investigator: Robert Klaver Student Investigator: Brenna Towery (M a revised and refined wetlands inventory for Iowa (circa 2002), as well as 5 years of Canada Goose (singles, pairs, and groups) to specific wetlands or streams/rivers on individual survey plots, we can

Koford, Rolf R.

459

Pair counting, pion-exchange forces, and the structure of light nuclei  

E-Print Network [OSTI]

A simple but useful guide for understanding the structure of light nuclei is presented. It is based on counting the number of interacting pairs in different spin-isospin (S,T) states for a given spatial symmetry, and estimating the overall binding according to the sum of sigma_i.sigma_j tau_i.tau_j expectation values, as suggested by one-pion-exchange. Applied to s- and p-shell nuclei, this simple picture accounts for the relative stability of nuclei as A increases and as T changes across isobars, the saturation of nuclear binding in the p-shell, and the tendency to form d, t, or alpha subclusters there. With allowance for pairwise tensor and spin-orbit forces, which are also generated or boosted by pion-exchange, the model explains why mixing of different spatial symmetries in ground states increases as T increases across isobars, and why for states of the same spatial symmetry, the ones with greater S are lower in the spectrum. The ordering of some sd-shell intruder levels can also be understood. The success of this simple model supports the idea that one-pion-exchange is the dominant force controlling the structure of light nuclei.

R. B. Wiringa

2006-01-21T23:59:59.000Z

460

Ligand Lone-Pair Influence on Hydrocarbon C-H Activation: A Computational Perspective  

SciTech Connect (OSTI)

Mid to late transition metal complexes that break hydrocarbon C?H bonds by transferring the hydrogen to a heteroatom ligand while forming a metal?alkyl bond offer a promising strategy for C?H activation. Here we report a density functional (B3LYP, M06, and X3LYP) analysis of cis-(acac){sub 2}MX and TpM(L)X (M = Ir, Ru, Os, and Rh; acac = acetylacetonate, Tp = tris(pyrazolyl)borate; X = CH{sub 3}, OH, OMe, NH{sub 2}, and NMe{sub 2}) systems for methane C?H bond activation reaction kinetics and thermodynamics. We address the importance of whether a ligand lone pair provides an intrinsic kinetic advantage through possible electronic d{sub ?}?p{sub ?} repulsions for M?OR and M?NR{sub 2} systems versus M?CH{sub 3} systems. This involves understanding the energetic impact of the X ligand group on ligand loss, C?H bond coordination, and C?H bond cleavage steps as well as understanding how the nucleophilicity of the ligand X group, the electrophilicity of the transition metal center, and cis-ligand stabilization effect influence each of these steps. We also explore how spectator ligands and second- versus third-row transition metal centers impact the energetics of each of these C?H activation steps.

Ess, Daniel H; Gunnoe, T. Brent; Cundari, Thomas R; Goddard, William A; Periana, Roy A

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

High pressure pair distribution function studies of Green River oil shale.  

SciTech Connect (OSTI)

The compression behavior of a silicate-rich oil shale from the Green River formation in the pressure range 0.0-2.4 GPa was studied using in situ high pressure X-ray pair distribution function (PDF) measurements for the sample contained within a Paris-Edinburgh cell. The real-space local structural information in the PDF, G(r), was used to evaluate the compressibility of the oil shale. Specifically, the pressure-induced reduction in the medium- to long-range atom distances ({approx}6-20 {angstrom}) yielded an average sample compressibility corresponding to a bulk modulus of ca. 61-67 GPa. A structural model consisting of a three phase mixture of the principal crystalline oil shale components (quartz, albite and Illite) provided a good fit to the ambient pressure PDF data (R {approx} 30.7%). Indeed the features in the PDF beyond {approx} {angstrom}, were similarly well fit by a single phase model of the highest symmetry, highly crystalline quartz component. The factors influencing the observed compression behavior are discussed.

Chapman, K. W.; Chupas, P. J.; Locke, D. R.; Winans, R. E.; Pugmire, R. J.; Univ. of Utah

2008-01-01T23:59:59.000Z

462

Higgs boson pair production in the D=6 extension of the SM  

E-Print Network [OSTI]

We derive the constraints that can be imposed on the dimension-6 effective theory extension of the Standard Model, using gluon-fusion-initiated Higgs boson pair production at the LHC. We use a realistic analysis focussing on the $hh \\rightarrow (b\\bar{b}) ( \\tau^+ \\tau^- )$ final state, including initial-state radiations and non-perturbative effects. We include conservative estimates of the theoretical uncertainties on the signal rate predictions as well as the statistical uncertainties. We first consider a theory containing only modifications of the trilinear coupling through an $c_6 \\lambda\\, H^6/ \\Lambda^2$ Lagrangian term, and then examine the full parameter space of the effective theory, incorporating current bounds obtained through single Higgs boson measurements. We also consider a simplified scenario, where we only allow a sub-set of parameters to vary and set the others to zero. We find that the currently unbounded parameter, $c_6$, could be constrained to lie within $-0.9 \\lesssim c_6 \\lesssim 1.7$ ...

Goertz, Florian; Yang, Li Lin; Zurita, Jos

2014-01-01T23:59:59.000Z

463

Order-v4 relativistic corrections to ? inclusive decay into a charm pair  

Science Journals Connector (OSTI)

In this work, we determine the short-distance coefficients for ? inclusive decay into a charm pair through relative order v4 within the framework of nonrelativistic QCD (NRQCD) factorization formula. The short-distance coefficient of the order-v4 color-singlet NRQCD matrix element is obtained through matching the decay rate of bb(S1[1]3)?ccgg in full QCD to that in NRQCD. The double and single IR divergences appearing in the decay rate are exactly canceled through the next-to-next-to-leading-order renormalization of the operator O(S1[8]3) and the next-to-leading-order renormalization of the operators O(PJ[8]3). To investigate the convergence of the relativistic expansion arising from the color-singlet contributions, we study the ratios of the order-v2 and -v4 color-singlet short-distance coefficients to the leading-order one. Our results indicate that though the order-v4 color-singlet short-distance coefficient is quite large, the relativistic expansion for the color-singlet contributions in the process ??cc+X converges well due to a small value of v. In addition, we extrapolate the value of the mass ratio of the charm quark to the bottom quark, and find the relativistic corrections rise quickly with increase of the mass ratio.

Wen-Long Sang, Hai-Ting Chen, and Yu-Qi Chen

2012-12-03T23:59:59.000Z

464

Search for Pair Production of Supersymmetric Top Quarks in Dilepton Events at the Tevatron  

SciTech Connect (OSTI)

We search for pair production of the supersymmetric partner of the top quark, the stop quark {tilde t}{sub 1}, decaying to a b-quark and a chargino {tilde {chi}}{sub 1}{sup {+-}} with a subsequent decay into a neutralino {tilde {chi}}{sub 1}{sup 0}, lepton {ell}, and neutrino {nu}. Using 2.7 fb{sup -1} of {radical}s = 1.96 TeV p{bar p} collision data collected by the CDF II experiment, we reconstruct the mass of candidate stop events and fit the observed mass spectrum to a combination of standard model processes and stop signal. No evidence of {tilde t}{sub 1}{tilde {bar 1}}{sub 1} production is found, therefore we set 95% C.L. limits on the masses of the stop and the neutralino for several values of the chargino mass and the branching ratio {Beta} ({tilde {chi}}{sub 1}{sup {+-}} {yields} {tilde {chi}}{sub 1}{sup 0}{ell}{sup {+-}}{nu}).

Johnson, William Casey; /UC, Davis

2010-05-01T23:59:59.000Z

465

Neutral Higgs-pair Production at one-loop from a Generic 2HDM  

E-Print Network [OSTI]

We present a one-loop analysis of the pairwise production of neutral Higgs bosons (h0A0, H0A0) at linear colliders, such as the ILC and CLIC, within the general Two-Higgs-Doublet Model (2HDM). We single out sizable radiative corrections, which can well reach the level of 50 % and may be either positive (typically for \\sqrt{s} \\sim 0.5 TeV) and negative (for \\sqrt{s} of 1 TeV and above). These large quantum effects, obtained in full agreement with the current phenomenological bounds and the stringent theoretical constraints on the parameter space of the model, can be traced back to the enhancement capabilities of the triple-Higgs self-interactions -- a trademark feature of the 2HDM, with no counterpart in e.g. the Minimal Supersymmetric Standard Model. In the most favorable scenarios, the Higgs-pair cross sections may be boosted up to barely 30 fb at the fiducial center-of-mass energy of 500 GeV -- amounting to a few thousand events per 500 inverse femtobarn of integrated luminosity. We also compare these results with several complementary double and triple Higgs-boson production mechanisms at order \\alpha^3_{ew} and leading \\alpha^4_{ew}, and we spotlight a plethora of potentially distinctive signatures of a Two-Higgs-Doublet structure of non-supersymmetric nature.

David Lopez-Val; Joan Sola

2010-01-04T23:59:59.000Z

466

Direct collapse black hole formation from synchronized pairs of atomic cooling halos  

E-Print Network [OSTI]

High-redshift quasar observations imply that supermassive black holes (SMBHs) larger than $\\sim 10^9 ~ M_\\odot$ formed before $z=6$. That such large SMBHs formed so early in the Universe remains an open theoretical problem. One possibility is that gas in atomic cooling halos exposed to strong Lyman-Werner (LW) radiation forms $10^4-10^6 ~ M_\\odot$ supermassive stars which quickly collapse into black holes. We propose a scenario for direct collapse black hole (DCBH) formation based on synchronized pairs of pristine atomic cooling halos. We consider halos at very small separation with one halo being a subhalo of the other. The first halo to surpass the atomic cooling threshold forms stars. Soon after these stars are formed, the other halo reaches the cooling threshold and due to its small distance from the newly formed galaxy, is exposed to the critical LW intensity required to form a DCBH. The main advantage of this scenario is that synchronization can potentially prevent photoevaporation and metal pollution i...

Visbal, Eli; Bryan, Greg L

2014-01-01T23:59:59.000Z

467

Steric Effects in Ionic Pairing and Polyelectrolyte Interdiffusion within Multilayered Films: A Neutron Reflectometry Study  

SciTech Connect (OSTI)

Using a series of polycations synthesized by atom transfer radical polymerization (ATRP), we investigate the effects of the polymer charge density and hydrophobicity on salt-induced interdiffusion of polymer layers within polyelectrolyte multilayer (PEM) films. Polycations with two distinct hydrophobicities and various quaternization degrees (QPDMA and QPDEA) were derived from parent polymers of matched molecular weights poly(2-(dimethylamino)ethyl methacrylate) (PDMA) and poly(2-(diethylamino)ethyl methacrylate) (PDEA) by quaternization with either methyl or ethyl sulfate. Multilayers of these polycations with polystyrene sulfonate (PSS) were assembled in low-salt conditions, and annealed in NaCl solutions to induce layer intermixing. As revealed by neutron reflectometry (NR), polycations with lower charge density resulted in a faster decay of film structure with distance from the substrate. Interestingly, when comparing polymer mobility in QPDEA/PSS and QPDMA/PSS films, layer intermixing was faster in the case of more hydrophobic QPDEA as compared to QPDMA, because of the weaker ionic pairing (due to the presence of a bulky ethyl spacer) between QPDEA and PSS.

Xu, Li [Stevens Institute of Technology, Hoboken, New Jersey; Ankner, John Francis [ORNL; Sukhishvili, Prof. Svetlana A. [Stevens Institute of Technology, Hoboken, New Jersey

2011-01-01T23:59:59.000Z

468

e+e- Pairs: a clock and a thermometer of heavy ion collisions  

E-Print Network [OSTI]

Recently, there is growing evidence that a new state of matter is formed in sqrt(s_NN)= 200 GeV Au+Au collisions at RHIC: a strongly coupled Quark Gluon Plasma of partonic degrees of freedom which develops a collective motion. Dilepton spectra are not affected by strong interaction and can therefore probe the whole time evolution of the collision. Thus they may be sensitive to onset of deconfinement, chiral symmetry restoration, as well as the production of thermal photons. The PHENIX experiment measured the production of e+e- pairs in p+p and Au+Au collisions at sqrt(s_NN)= 200 GeV. An enhanced dilepton yield in the mass range 150

Alberica Toia

2008-05-01T23:59:59.000Z

469

Thermal storage for solar cooling using paired ammoniated salt reactors. Final report  

SciTech Connect (OSTI)

The objectives of the program were to investigate the feasibility of using various solid and liquid ammoniates in heat pump/thermal storage systems for space heating and cooling. The study included corrosion testing of selected metallic and non-metallic specimens in the ammoniates, subscale testing of the candidate ammoniates singly and in pairs, trade studies and conceptual design of a residential system, prototype testing, and ammoniation/deammoniation cyclic testing of manganese chloride. Results of the corrosion testing showed that problems exist with manganese and magnesium chloride ammoniates, except with the teflon which displayed excellent resistance in all environments. Also, all liquid ammoniates are unsuitable for use with uncoated carbon steel. Cycling of the manganese chloride between the high and low ammoniates does not affect its properties. However, the density change between the high and low ammoniates could cause packing problems in a reactor which constrains the salt volume. Subscale tests with solid ammoniates indicated that the heat transfer coefficient in a fixed bed reactor is low (approx. 1 Btu/h-ft/sup 2/-/sup 0/F). Therefore solid ammoniates are not practical because of the high heat exchanger cost requirement. Forced ammonia recirculation was tested as a means of increasing heat transfer rate in the fixed bed reactor with solid salts, but was not successful. Conversely, the subscale testing with liquid ammoniates produced heat transfer coefficients of 40 to 45 Btu/h-ft/sup 2/-/sup 0/F. Thus, the residential design was based on a liquid ammoniate/ammonia system using ammonium nitrate as the salt.

Not Available

1981-09-01T23:59:59.000Z

470

Parametric Amplification of Scattered Atom Pairs Gretchen K. Campbell, Jongchul Mun, Micah Boyd, Erik W. Streed, Wolfgang Ketterle, and David E. Pritchard*  

E-Print Network [OSTI]

and the atom- optics analog of optical parametric generation. Phase matching is essential for high efficiency parametric generation and amplification of ultracold atom pairs. A 87Rb Bose- Einstein condensate was loaded and amplification of photons and could be used to efficiently create entangled pairs of atoms. Furthermore

471

Alkylsulfonates as Probes of Uncoupling Protein Transport ION PAIR TRANSPORT DEMONSTRATES THAT DIRECT H TRANSLOCATION BY UCP1 IS NOT NECESSARY  

E-Print Network [OSTI]

Alkylsulfonates as Probes of Uncoupling Protein Transport Mechanism ION PAIR TRANSPORT DEMONSTRATES of Membrane Transport Biophysics, Institute of Physiology, Academy of Sciences, Prague 14220, Czech Republic is transported with the neutral ion pair, the sulfonate is able to deliver protons across the bilayer, behaving

Garlid, Keith

472

Experimental investigation of the pairing state of high-temperature superconductors J. Buan,* Branko P. Stojkovic, Nathan Israeloff, A. M. Goldman, C. C. Huang, and Oriol T. Valls  

E-Print Network [OSTI]

Experimental investigation of the pairing state of high-temperature superconductors J. Buan manuscript received 8 April 1996 To address the issue of the pairing state in high-temperature superconductors, four different experimental investigations have been carried out on a single high

Sridhar, Srinivas

473

Bell-polynomial manipulations on the Baecklund transformations and Lax pairs for some soliton equations with one Tau-function  

SciTech Connect (OSTI)

In the framework of Bell-polynomial manipulations, under investigation hereby are three single-field bilinearizable equations: the (1+1)-dimensional shallow water wave model, Boiti-Leon-Manna-Pempinelli model, and (2+1)-dimensional Sawada-Kotera model. Based on the concept of scale invariance, a direct and unifying Bell-polynomial scheme is employed to achieve the Baecklund transformations and Lax pairs associated with those three soliton equations. Note that the Bell-polynomial expressions and Bell-polynomial-typed Baecklund transformations for those three soliton equations can be, respectively, cast into the bilinear equations and bilinear Baecklund transformations with symbolic computation. Consequently, it is also shown that the Bell-polynomial-typed Baecklund transformations can be linearized into the corresponding Lax pairs.

Lue Xing; Sun Kun; Wang Pan [School of Science, Beijing University of Posts and Telecommunications, P.O. Box 122, Beijing 100876 (China); Tian Bo [School of Science, Beijing University of Posts and Telecommunications, P.O. Box 122, Beijing 100876 (China); State Key Laboratory of Software Development Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191 (China); Key Laboratory of Information Photonics and Optical Communications (BUPT), Ministry of Education, Beijing University of Posts and Telecommunications, P.O. Box 128, Beijing 100876 (China)

2010-11-15T23:59:59.000Z

474

Coherent Electromagnetic Heavy Ion Reactions: (1) Exact Treatment of Pair Production and Ionization; (2) Mutual Coulomb Dissociation  

SciTech Connect (OSTI)

Some recent theoretical results on coherent electromagnetic processes in ultrarelativistic heavy ion reactions are surveyed. In ultrarelativistic heavy ion collisions, Coulomb induced cross sections are huge, much larger than geometric. For the RHIC case of 100 GeV x 100 GeV colliding gold ions the predicted cross section for bound-electron positron pairs is about 110 barns. The corresponding cross section for continuum electron-positron pairs has recently been recalculated to be 34,000 barns, consistent with the result of the classic formula of Landau and Lifshitz. The cross section for Coulomb dissociation of the nucleus is about 95 barns, and the cross section for ionization of a single electron on one of the ions is about 100,000 barns.

Baltz, A. J.

1999-05-10T23:59:59.000Z

475

Scattering of light and atoms in a Fermi-Dirac gas with Bardeen-Cooper-Schrieffer pairing  

Science Journals Connector (OSTI)

We theoretically study the optical properties of a Fermi-Dirac gas in the presence of a superfluid state. We calculate the leading quantum-statistical corrections to the standard column density result of the electric susceptibility. We also consider the Bragg diffraction of atoms by means of light-stimulated transitions of photons between two intersecting laser beams. Bardeen-Cooper-Schrieffer pairing between atoms in different internal levels magnifies incoherent scattering processes. The absorption linewidth of a Fermi-Dirac gas is broadened and shifted. Bardeen-Cooper-Schrieffer pairing introduces a collisional local-field shift that may dramatically dominate the Lorentz-Lorenz shift. For the case of the Bragg spectroscopy the static structure function may be significantly increased due to superfluidity in the near-forward scattering.

J. Ruostekoski

2000-02-10T23:59:59.000Z

476

Weak interaction corrections to hadronic top quark pair production: contributions from quark-gluon and $b \\bar b$ induced reactions  

E-Print Network [OSTI]

As an addendum to our previous evaluation of the weak-interaction corrections to hadronic top-quark pair production we determine the leading weak-interaction contributions due to the subprocesses $b {\\bar b} \\to t {\\bar t}$ and $g q ({\\bar q}) \\to t {\\bar t} q ({\\bar q})$. For several distributions in $t {\\bar t}$ production at the LHC we find that these contributions are non-negligible as compared to the weak corrections from the other partonic subprocesses.

Werner Bernreuther; Michael Fuecker; Zong-Guo Si

2008-04-08T23:59:59.000Z

477

The microscopic pairing gap in a slab of nuclear matter for the Argonne v18 NN-potential  

Science Journals Connector (OSTI)

Ab initio gap equation for 1S0 pairing in a nuclear slab is solved for the Argonne v18 NN-potential. The gap function is compared in detail with the one found previously for the separable form of the Paris potential. The difference between the two gaps turned out to be about 10%. Dependence of the gap on the chemical potential ? is analyzed.

S.S. Pankratov; M. Baldo; U. Lombardo; E.E. Saperstein; M.V. Zverev

2008-01-01T23:59:59.000Z

478

The microscopic pairing gap in a slab of nuclear matter for the Argonne v18 NN-potential  

E-Print Network [OSTI]

Ab initio gap equation for ^1S_0 pairing in a nuclear slab is solved for the Argonne v18 NN-potential. The gap function is compared in detail with the one found previously for the separable form of the Paris potential. The difference between the two gaps turned out to be about 10%. Dependence of the gap on the chemical potential mu is analyzed.

S. S. Pankratov; M. Baldo; U. Lombardo; E. E. Saperstein; M. V. Zverev; ;

2008-01-12T23:59:59.000Z

479

Study on the top quark pair production mechanism in 1.96 TeV proton-antiproton collisions  

SciTech Connect (OSTI)

The study of the top quark pair production mechanism in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV is described. The main subjects are the measurements of the top quark pair production cross section, the top quark mass and a search for a new particle decaying to the top quark pair. The analyses are based on 1.9 fb{sup -1} of data collected by the Collider Detector at Fermilab (CDF) Run II experiment between March 2002 and May 2007, using the lepton+jets events. The measured top quark pair production cross section is 8.2 {+-} 0.5 (stat.) {+-} 0.8 (syst.) {+-} 0.5 (lum.) pb, which is slightly higher than the standard model prediction at the top mass of 175 GeV/c{sup 2}. The top quark mass is an important parameter in the standard model, and also in the experimental studies. The measured top quark mass if 171.6 {+-} 2.0 (stat.) {+-} 1.3(syst.) GeV/c{sup 2}. Finally, they report on a search for a new gauge boson decaying to t{bar t}, which interferes with the standard model gluon in the q{bar q} {yields} t{bar t} production process. They call such a hypothetical particle a 'Massive Gluon'. The observed t{bar t} invariant mass distribution is consistent with the standard model expectations, and also the measured massive gluon coupling strength with quarks is consistent within a statistical fluctuation of the standard model expectation in the wide range of the massive gluon masses and widths. They set the upper and lower limits on the coupling strength of the massive gluon.

Naganoma, Junji; /Waseda U.

2008-03-01T23:59:59.000Z

480

The neutron drip line: single-particle degrees of freedom and pairing properties as sources of theoretical uncertainties  

E-Print Network [OSTI]

The sources of theoretical uncertainties in the prediction of the two-neutron drip line are analyzed in the framework of covariant density functional theory. We concentrate on single-particle and pairing properties as potential sources of these uncertainties. The major source of these uncertainties can be traced back to the differences in the underlying single-particle structure of the various covariant energy density functionals (CEDF). It is found that the uncertainties in the description of single-particle energies at the two-neutron drip line are dominated by those existing already in known nuclei. Only approximately one third of these uncertainties are due to the uncertainties in the isovector channel of CEDF's. Thus, improving the CEDF description of single-particle energies in known nuclei will also reduce the uncertainties in the prediction of the position of two-neutron drip line. The predictions of pairing properties in neutron rich nuclei depend on the CEDF. Although pairing properties affect moder...

Afanasjev, A V; Ray, D; Ray, P

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brems pair prod" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Nanoscale strain-induced pair suppression as a source of vortex pinning in high-temperature superconductors  

SciTech Connect (OSTI)

Boosting large-scale superconductor applications require nanostructured conductors with artificial pinning centres immobilizing quantized vortices at high temperature and magnetic fields. Here we demonstrate a highly effective mechanism of artificial pinning centres in solution-derived high-temperature superconductor nanocomposites through generation of nanostrained regions where Cooper pair formation is suppressed. The nanostrained regions identified from transmission electron microscopy devise a very high concentration of partial dislocations associated with intergrowths generated between the randomly oriented nanodots and the epitaxial YBa{sub 2}Cu{sub 3}O{sub 7} matrix. Consequently, an outstanding vortex-pinning enhancement correlated to the nanostrain is demonstrated for four types of randomly oriented nanodot, and a unique evolution towards an isotropic vortex-pinning behaviour, even in the effective anisotropy, is achieved as the nanostrain turns isotropic. We suggest a new vortex-pinning mechanism based on the bond-contraction pairing model, where pair formation is quenched under tensile strain, forming new and effective core-pinning regions.

Llordes, A. [ICMAB, Barcelona, Spain; Palau, A. [ICMAB, Barcelona, Spain; Vlad, R. [ICMAB, Barcelona, Spain; Pomar, A. [ICMAB, Barcelona, Spain; Arbiol, Jordi [ICMAB, Barcelona, Spain; Guzman, Roger [ICMAB, Barcelona, Spain; Gazquez Alabart, Jaume [ORNL; Varela del Arco, Maria [ORNL; Sandiumenge, Felip [ICMAB, Barcelona, Spain; Ricart, Susagna [ICMAB, Barcelona, Spain; Puig, Teresa [ICMAB, Barcelona, Spain; Chataigner, D. [CRISMAT, Caen, France; Vanacken, J. [INPAC-Institute for Nanoscale Physics and Chemistry, Leuven, Belgium; Gutierrez, J. [INPAC-Institute for Nanoscale Physics and Chemistry, Leuven, Belgium; Deutscher, G. [Tel Aviv University; Moschalkov, V. [INPAC-Institute for Nanoscale Physics and Chemistry, Leuven, Belgium; Obradors, Xavier [ICMAB, Barcelona, Spain

2012-01-01T23:59:59.000Z

482

Eliminating the Renormalization Scale Ambiguity for Top-Pair Production Using the Principle of Maximum Conformality  

SciTech Connect (OSTI)

The uncertainty in setting the renormalization scale in finite-order perturbative QCD predictions using standard methods substantially reduces the precision of tests of the Standard Model in collider experiments. It is conventional to choose a typical momentum transfer of the process as the renormalization scale and take an arbitrary range to estimate the uncertainty in the QCD prediction. However, predictions using this procedure depend on the choice of renormalization scheme, leave a non-convergent renormalon perturbative series, and moreover, one obtains incorrect results when applied to QED processes. In contrast, if one fixes the renormalization scale using the Principle of Maximum Conformality (PMC), all non-conformal {l_brace}{beta}{sub i}{r_brace}-terms in the perturbative expansion series are summed into the running coupling, and one obtains a unique, scale-fixed, scheme-independent prediction at any finite order. The PMC renormalization scale {mu}{sub R}{sup PMC} and the resulting finite-order PMC prediction are both to high accuracy independent of choice of the initial renormalization scale {mu}{sub R}{sup init}, consistent with renormalization group invariance. Moreover, after PMC scale-setting, the n!-growth of the pQCD expansion is eliminated. Even the residual scale-dependence at fixed order due to unknown higher-order {l_brace}{beta}{sub i}{r_brace}-terms is substantially suppressed. As an application, we apply the PMC procedure to obtain NNLO predictions for the t{bar t}-pair hadroproduction cross-section at the Tevatron and LHC colliders. There are no renormalization scale or scheme uncertainties, thus greatly improving the precision of the QCD prediction. The PMC prediction for {sigma}{sub t{bar t}} is larger in magnitude in comparison with the conventional scale-setting method, and it agrees well with the present Tevatron and LHC data. We also verify that the initial scale-independence of the PMC prediction is satisfied to high accuracy at the NNLO level: the total cross-section remains almost unchanged even when taking very disparate initial scales {mu}{sub R}{sup init} equal to m{sub t}, 20 m{sub t}, {radical}s.

Brodsky, Stanley J.; /SLAC; Wu, Xing-Gang; /Chongqing U.

2012-04-02T23:59:59.000Z

483

Search for Neutral Minimal Supersymmetric Standard Model Higgs Bosons Decaying to Tau Pairs in pp Collisions at sqrt[s]=7??TeV  

SciTech Connect (OSTI)

A search for neutral MSSM Higgs bosons in pp collisions at the LHC at a center-of-mass energy of 7 TeV is presented. The results are based on a data sample corresponding to an integrated luminosity of 36 inverse picobarns recorded by the CMS experiment. The search uses decays of the Higgs bosons to tau pairs. No excess is observed in the tau-pair invariant-mass spectrum. The resulting upper limits on the Higgs boson production cross section times branching fraction to tau pairs, as a function of the pseudoscalar Higgs boson mass, yield stringent new bounds in the MSSM parameter space.

Chatrchyan, Serguei; et al.

2011-06-01T23:59:59.000Z

484

Retrodictive derivation of the radical-ion-pair master equation and Monte-Carlo simulation with single-molecule quantum trajectories  

E-Print Network [OSTI]

Radical-ion-pair reactions, central in photosynthesis and the avian magnetic compass mechanism, have recently shown to be a paradigm system for applying quantum information science in a biochemical setting. The fundamental quantum master equation describing radical-ion-pair reactions is still under debate. We here use quantum retrodiction to produce a rigorous refinement of the theory put forward in Phys. Rev. E {\\bf 83}, 056118 (2011). We also provide a rigorous analysis of the measure of singlet-triplet coherence required for deriving the radical-pair master equation. A Monte-Carlo simulation with single-molecule quantum trajectories supports the self-consistency of our approach.

Kritsotakis, M

2014-01-01T23:59:59.000Z

485

Search for Resonant Pair Production of Neutral Long-Lived Particles Decaying to bb in pp Collisions at sq root(s)=1.96 TeV  

SciTech Connect (OSTI)

We report on a first search for resonant pair production of neutral long-lived particles (NLLP) which each decay to a bb pair, using 3.6 fb{sup -1} of data recorded with the D0 detector at the Fermilab Tevatron collider. We search for pairs of displaced vertices in the tracking detector at radii in the range 1.6-20 cm from the beam axis. No significant excess is observed above background, and upper limits are set on the production rate in a hidden-valley benchmark model for a range of Higgs boson masses and NLLP masses and lifetimes.

Abazov, V. M.; Alexeev, G. D.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Abbott, B.; Gutierrez, P.; Hossain, S.; Jain, S.; Rominsky, M.; Severini, H.; Skubic, P.; Strauss, M. [University of Oklahoma, Norman, Oklahoma 73019 (United States); Abolins, M.; Benitez, J. A.; Brock, R.; Edmunds, D.; Hall, I. [Michigan State University, East Lansing, Michigan 48824 (United States)

2009-08-14T23:59:59.000Z

486

No O(N) queries for checking if N intervals cover everything or for piercing N pairs of intervals. An O(N log N)-steps algorithm for piercing  

E-Print Network [OSTI]

The complexity of two related geometrical (indeed, combinatorial) problems is considered, measured by the number of queries needed to determine the solution. It is proved that one cannot check in a linear in N number of queries whether N intervals cover a whole interval, or whether for N pairs of intervals on two lines there is a pair of points intersecting each of these pairs of intervals ("piercing all pairs of intervals"). The proofs are related to examples which show that there is no "Helly property" here - the whole set of N may cover the whole interval (resp. may have no pair of points piercing all pairs of intervals) while any proper subset does not. Also, for the piercing problem we outline an algorithm, taking O(N log N) steps, to check whether there is a pair of points piercing all pairs of intervals and if there is, to find it.

Katchalski, Meir

2011-01-01T23:59:59.000Z

487

contrast differences in PAA levels between the dizygous twin pairs were statistically significant. This suggests the existence of genetic differences between PAA levels.  

E-Print Network [OSTI]

contrast differences in PAA levels between the dizygous twin pairs were statistically significant. This suggests the existence of genetic differences between PAA levels. The factor analysis isolated 10 factors

Paris-Sud XI, Université de

488

Conductivity of Underdoped YBa2Cu3O7-?: Evidence for Incoherent Pair Correlations in the Pseudogap Regime  

Science Journals Connector (OSTI)

A two-channel scenario for the conductivity of underdoped YBa 2Cu 3O 7-? is proposed. One is the single-particle excitations channel, which dominates in the optimally doped material, whose resistivity is linear as a function of temperature. The other one gives a contribution which merges the 3D Aslamazov-Larkin fluctuation conductivity at low temperature and obeys a power law at high temperature, depending on two superconductive parameters ( Tc and the zero temperature coherence length ?c0) and an energy scale ?*. This allows one to address the nature of the pseudogap in favor of incoherent pairing.

B. Leridon, A. Dfossez, J. Dumont, J. Lesueur, and J. P. Contour

2001-10-23T23:59:59.000Z

489

Combined Monte Carlo and quantum mechanics study of the hydration of the guanine-cytosine base pair  

Science Journals Connector (OSTI)

We present a computer simulation study of the hydration of the guanine-cytosine (GC) hydrogen-bonded complex. Using first principles density-functional theory, with gradient-corrected exchange-correlation and Monte Carlo simulation, we include thermal contribution, structural effects, solvent polarization, and the water-water and water-GC hydrogen bond interaction to show that the GC interaction in an aqueous environment is weakened to about 70% of the value obtained for an isolated complex. We also analyze in detail the preferred hydration sites of the GC pair and show that on the average it makes around five hydrogen bonds with water.

Kaline Coutinho; Valdemir Ludwig; Sylvio Canuto

2004-06-01T23:59:59.000Z

490

Transient phenomena in the dielectric breakdown of HfO{sub 2} optical films probed by ultrafast laser pulse pairs  

SciTech Connect (OSTI)

The laser induced breakdown threshold of HfO{sub 2} films is studied with single pairs of pulses of variable delay and 50 fs and 1 ps pulse duration. Two distinct transient regimes are observed that can be related to the relaxation of the electron density from the conduction band via an intermediate state to the valence band. The experimental results are in good agreement with a theoretical model that assumes occupation of mid gap states after the first pulse on a time scale of several tens of picoseconds and subsequent decay of this population via recombination with holes in the valence band on a time scale of several tens of milliseconds.

Nguyen, Duy N.; Emmert, Luke A.; Rudolph, Wolfgang [Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States); Patel, Dinesh; Menoni, Carmen S. [Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, Colorado 80523 (United States)

2010-11-08T23:59:59.000Z

491

Measurement of the inclusive leptonic asymmetry in top-quark pairs that decay to two charged leptons at CDF  

E-Print Network [OSTI]

We measure the inclusive forward-backward asymmetry of the charged-lepton pseudorapidities from top-quark pairs produced in proton-antiproton collisions, and decaying to final states that contain two charged leptons (electrons or muons), using data collected with the Collider Detector at Fermilab. With an integrated luminosity of 9.1 $\\rm{fb}^{-1}$, the leptonic forward-backward asymmetry, $A_{\\text{FB}}^{\\ell}$, is measured to be $0.072 \\pm 0.060$ and the leptonic pair forward-backward asymmetry, $A_{\\text{FB}}^{\\ell\\ell}$, is measured to be $0.076 \\pm 0.082$, compared with the standard model predictions of $A_{\\text{FB}}^{\\ell} = 0.038 \\pm 0.003$ and $A_{\\text{FB}}^{\\ell\\ell} = 0.048 \\pm 0.004$, respectively. Additionally, we combine the $A_{\\text{FB}}^{\\ell}$ result with a previous determination from a final state with a single lepton and hadronic jets and obtain $A_{\\text{FB}}^{\\ell} = 0.090^{+0.028}_{-0.026}$.

CDF Collaboration; T. Aaltonen; S. Amerio; D. Amidei; A. Anastassov; A. Annovi; J. Antos; G. Apollinari; J. A. Appel; T. Arisawa; A. Artikov; J. Asaadi; W. Ashmanskas; B. Auerbach; A. Aurisano; F. Azfar; W. Badgett; T. Bae; A. Barbaro-Galtieri; V. E. Barnes; B. A. Barnett; P. Barria; P. Bartos; M. Bauce; F. Bedeschi; S. Behari; G. Bellettini; J. Bellinger; D. Benjamin; A. Beretvas; A. Bhatti; K. R. Bland; B. Blumenfeld; A. Bocci; A. Bodek; D. Bortoletto; J. Boudreau; A. Boveia; L. Brigliadori; C. Bromberg; E. Brucken; J. Budagov; H. S. Budd; K. Burkett; G. Busetto; P. Bussey; P. Butti; A. Buzatu; A. Calamba; S. Camarda; M. Campanelli; F. Canelli; B. Carls; D. Carlsmith; R. Carosi; S. Carrillo; B. Casal; M. Casarsa; A. Castro; P. Catastini; D. Cauz; V. Cavaliere; M. Cavalli-Sforza; A. Cerri; L. Cerrito; Y. C. Chen; M. Chertok; G. Chiarelli; G. Chlachidze; K. Cho; D. Chokheli; A. Clark; C. Clarke; M. E. Convery; J. Conway; M. Corbo; M. Cordelli; C. A. Cox; D. J. Cox; M. Cremonesi; D. Cruz; J. Cuevas; R. Culbertson; N. d'Ascenzo; M. Datta; P. de Barbaro; L. Demortier; L. Marchese; M. Deninno; F. Devoto; M. D'Errico; A. Di Canto; B. Di Ruzza; J. R. Dittmann; M. D'Onofrio; S. Donati; M. Dorigo; A. Driutti; K. Ebina; R. Edgar; A. Elagin; R. Erbacher; S. Errede; B. Esham; S. Farrington; J. P. Fernndez Ramos; R. Field; G. Flanagan; R. Forrest; M. Franklin; J. C. Freeman; H. Frisch; Y. Funakoshi; C. Galloni; A. F. Garfinkel; P. Garosi; H. Gerberich; E. Gerchtein; S. Giagu; V. Giakoumopoulou; K. Gibson; C. M. Ginsburg; N. Giokaris; P. Giromini; G. Giurgiu; V. Glagolev; D. Glenzinski; M. Gold; D. Goldin; A. Golossanov; G. Gomez; G. Gomez-Ceballos; M. Goncharov; O. Gonzlez Lpez; I. Gorelov; A. T. Goshaw; K. Goulianos; E. Gramellini; S. Grinstein; C. Grosso-Pilcher; R. C. Group; J. Guimaraes da Costa; S. R. Hahn; J. Y. Han; F. Happacher; K. Hara; M. Hare; R. F. Harr; T. Harrington-Taber; K. Hatakeyama; C. Hays; J. Heinrich; M. Herndon; A. Hocker; Z. Hong; W. Hopkins; S. Hou; R. E. Hughes; U. Husemann; M. Hussein; J. Huston; G. Introzzi; M. Iori; A. Ivanov; E. James; D. Jang; B. Jayatilaka; E. J. Jeon; S. Jindariani; M. Jones; K. K. Joo; S. Y. Jun; T. R. Junk; M. Kambeitz; T. Kamon; P. E. Karchin; A. Kasmi; Y. Kato; W. Ketchum; J. Keung; B. Kilminster; D. H. Kim; H. S. Kim; J. E. Kim; M. J. Kim; S. B. Kim; S. H. Kim; Y. K. Kim; Y. J. Kim; N. Kimura; M. Kirby; K. Knoepfel; K. Kondo; D. J. Kong; J. Konigsberg; A. V. Kotwal; M. Kreps; J. Kroll; M. Kruse; T. Kuhr; M. Kurata; A. T. Laasanen; S. Lammel; M. Lancaster; K. Lannon; G. Latino; H. S. Lee; J. S. Lee; S. Leo; S. Leone; J. D. Lewis; A. Limosani; E. Lipeles; A. Lister; H. Liu; Q. Liu; T. Liu; S. Lockwitz; A. Loginov; A. Luc; D. Lucchesi; J. Lueck; P. Lujan; P. Lukens; G. Lungu; J. Lys; R. Lysak; R. Madrak; P. Maestro; S. Malik; G. Manca; A. Manousakis-Katsikakis; F. Margaroli; P. Marino; M. Martnez; K. Matera; M. E. Mattson; A. Mazzacane; P. Mazzanti; R. McNulty; A. Mehta; P. Mehtala; C. Mesropian; T. Miao; D. Mietlicki; A. Mitra; H. Miyake; S. Moed; N. Moggi; C. S. Moon; R. Moore; M. J. Morello; A. Mukherjee; Th. Muller; P. Murat; M. Mussini; J. Nachtman; Y. Nagai; J. Naganoma; I. Nakano; A. Napier; J. Nett; C. Neu; T. Nigmanov; L. Nodulman; S. Y. Noh; O. Norniella; L. Oakes; S. H. Oh; Y. D. Oh; I. Oksuzian; T. Okusawa; R. Orava; L. Ortolan; C. Pagliarone; E. Palencia; P. Palni; V. Papadimitriou; W. Parker; G. Pauletta; M. Paulini; C. Paus; T. J. Phillips; G. Piacentino; E. Pianori; J. Pilot; K. Pitts; C. Plager; L. Pondrom; S. Poprocki; K. Potamianos; F. Prokoshin; A. Pranko; F. Ptohos; G. Punzi; N. Ranjan; I. Redondo Fernndez; P. Renton; M. Rescigno; F. Rimondi; L. Ristori; A. Robson; T. Rodriguez; S. Rolli; M. Ronzani; R. Roser; J. L. Rosner; F. Ruffini; A. Ruiz; J. Russ; V. Rusu; W. K. Sakumoto; Y. Sakurai; L. Santi; K. Sato; V. Saveliev; A. Savoy-Navarro; P. Schlabach; E. E. Schmidt; T. Schwarz; L. Scodellaro; F. Scuri; S. Seidel; Y. Seiya; A. Semenov; F. Sforza; S. Z. Shalhout; T. Shears; P. F. Shepard; M. Shimojima; M. Shochet; I. Shreyber-Tecker; A. Simonenko; K. Sliwa; J. R. Smith; F. D. Snider; V. Sorin; H. Song; M. Stancari; R. St. Denis; D. Stentz; J. Strologas; Y. Sudo; A. Sukhanov; I. Suslov; K. Takemasa; Y. Takeuchi; J. Tang; M. Tecchio; P. K. Teng; J. Thom; E. Thomson; V. Thukral; D. Toback; S. Tokar; K. Tollefson; T. Tomura; D. Tonelli; S. Torre; D. Torretta; P. Totaro; M. Trovato; F. Ukegawa; S. Uozumi; F. Vzquez; G. Velev; C. Vellidis; C. Vernieri; M. Vidal; R. Vilar; J. Vizn; M. Vogel; G. Volpi; P. Wagner; R. Wallny; S. M. Wang; D. Waters; W. C. Wester III; D. Whiteson; A. B. Wicklund; S. Wilbur; H. H. Williams; J. S. Wilson; P. Wilson; B. L. Winer; P. Wittich; S. Wolbers; H. Wolfe; T. Wright; X. Wu; Z. Wu; K. Yamamoto; D. Yamato; T. Yang; U. K. Yang; Y. C. Yang; W. -M. Yao; G. P. Yeh; K. Yi; J. Yoh; K. Yorita; T. Yoshida; G. B. Yu

2014-04-14T23:59:59.000Z

492

Non-resonant Higgs pair production in the $b\\overline{b}b\\overline{b}$ final state at the LHC  

E-Print Network [OSTI]

We present a particle-level study of the Standard Model non-resonant Higgs-pair production process in the \\bbb\\bbb\\ final state, at the Large Hadron Collider at $\\sqrt{s}=14$\\,TeV. Each Higgs boson is reconstructed from a pair of close-by jets formed with the anti-$k_t$ jet clustering algorithm, with radius parameter $R=0.4$. Given the kinematic properties of the produced Higgs bosons, we show that this reconstruction approach is more suitable than the use of two large-radius jets that capture all the decay products of a Higgs boson, as was previously proposed in the literature. We also demonstrate that the sensitivity for observing this final state can be improved substantially when the full set of uncorrelated angular and kinematic variables of the $4b$ system is combined, leading to a statistical significance of $\\sim$$2\\sigma$ per experiment with an integrated luminosity of 3\\,ab$^{-1}$.

David Wardrope; Eric Jansen; Nikos Konstantinidis; Ben Cooper; Rebecca Falla; Nurfikri Norjoharuddeen

2014-10-10T23:59:59.000Z

493

Twofold spin-triplet pairing states and tunneling conductance in ferromagnet/ferromagnet/iron pnictide superconductor heterojunctions  

SciTech Connect (OSTI)

By applying an extended eight-component Bogoliubovde Gennes equation, we study theoretically the tunneling conductance in clean ferromagnet/ferromagnet/iron pnictide superconductor (FM/FM/iron-based SC) heterojunctions. Under the condition of noncollinear magnetizations, twofold novel Andreev reflections exist due to the existence of two bands in the SC, in which the incident electron and the two Andreev-reflected holes, belonging to the same spin subband, form twofold spin-triplet pairing states near the FM/iron-based SC interface. It is shown that the conversions of the conductance not only between the zero-bias peak and valley at zero energy but also between the peaks and dips at two gap energies are strongly dependent on both the interband coupling strength in the SC and the spin polarization in the FM. The qualitative differences from tunneling into a conventional s-wave SC are also presented, which may help with experimentally probing and identifying the antiphase s-wave pairing symmetry in the iron-based SC. -- Highlights: An eight-component Bogoliubovde Gennes (BDG) equation. Twofold novel ARs and twofold usual ARs. Conversions of conductance between the zero-bias peak and valley at zero energy. Conversions of conductance between peaks and dips at two gap energies. The importance of the interband coupling strength in the SC.

Yang, X. [Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023 (China)] [Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023 (China); Tao, Y.C., E-mail: yctao88@163.com [Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023 (China); Dong, Z.C. [Department of Physics, Nantong University, Nantong 226001 (China)] [Department of Physics, Nantong University, Nantong 226001 (China); Hu, J.G. [Department of Physics, Yangzhou University, Yangzhou 225002 (China)] [Department of Physics, Yangzhou University, Yangzhou 225002 (China)

2013-06-15T23:59:59.000Z

494

Superconductor-insulator Transition in La2-xSrxCuO4 at the Pair Quantum Resistance  

SciTech Connect (OSTI)

High-temperature superconductivity in copper oxides arises when a parent insulator compound is doped beyond some critical concentration; what exactly happens at this superconductor-insulator transition is a key open question. The cleanest approach is to tune the carrier density using the electric field effect; for example, it was learned in this way that weak electron localization transforms superconducting SrTiO{sub 3} into a Fermi-glass insulator. But in the copper oxides this has been a long-standing technical challenge, because perfect ultrathin films and huge local fields (>10{sup 9} Vm{sup -1}) are needed. Recently, such fields have been obtained using electrolytes or ionic liquids in the electric double-layer transistor configuration. Here we report synthesis of epitaxial films of La{sub 2-x}Sr{sub x}CuO{sub 4} that are one unit cell thick, and fabrication of double-layer transistors. Very large fields and induced changes in surface carrier density enable shifts in the critical temperature by up to 30 K. Hundreds of resistance versus temperature and carrier density curves were recorded and shown to collapse onto a single function, as predicted for a two-dimensional superconductor-insulator transition. The observed critical resistance is precisely the quantum resistance for pairs, R{sub Q} = h/(2e) = 6.45 k{Omega}, suggestive of a phase transition driven by quantum phase fluctuations, and Cooper pair (de)localization.

Bollinger, A.T.; Dubuis, G.; Yoon, J.; Pavuna, D.; Misewich, J.; Bozovic, I.

2011-04-28T23:59:59.000Z

495

On a Devils staircase associated to the joint spectral radii of a family of pairs of matrices  

E-Print Network [OSTI]

The joint spectral radius of a finite set of real dd matrices is defined to be the maximum possible exponential rate of growth of products of matrices drawn from that set. In previous work with K. G. Hare and J. Theys we showed that for a certain one-parameter family of pairs of matrices, this maximum possible rate of growth is attained along Sturmian sequences with a certain characteristic ratio which depends continuously upon the parameter. In this note we answer some open questions from that paper by showing that the dependence of the ratio function upon the parameter takes the form of a Devils staircase. We show in particular that this Devils staircase attains every rational value strictly between 0 and 1 on some interval, and attains irrational values only in a set of Hausdorff dimension zero. This result generalises to include certain one-parameter families considered by other authors. We also give explicit formulas for the preimages of both rational and irrational numbers under the ratio function, thereby establishing a large family of pairs of matrices for which the joint spectral radius may be calculated exactly.

Ian D. Morris; Nikita Sidorov

1107-01-01T23:59:59.000Z

496

A NEW METHOD TO DIRECTLY MEASURE THE JEANS SCALE OF THE INTERGALACTIC MEDIUM USING CLOSE QUASAR PAIRS  

SciTech Connect (OSTI)

Although the baryons in the intergalactic medium (IGM) trace dark matter fluctuations on megaparsec scales, on smaller scales ?100 kpc, fluctuations are suppressed because the finite temperature gas is pressure supported against gravity, analogous to the classical Jeans argument. This Jeans filtering scale, which quantifies the small-scale structure of the IGM, has fundamental cosmological implications. First, it provides a thermal record of heat injected by ultraviolet photons during cosmic reionization events, and thus constrains the thermal and reionization history of the universe. Second, the Jeans scale determines the clumpiness of the IGM, a critical ingredient in models of cosmic reionization. Third, it sets the minimum mass scale for gravitational collapse from the IGM, and hence plays a pivotal role in galaxy formation. Unfortunately, it is extremely challenging to measure the Jeans scale via the standard technique of analyzing purely longitudinal Ly? forest spectra, because the thermal Doppler broadening of absorption lines along the line-of-sight, is highly degenerate with Jeans smoothing. In this work, we show that the Jeans filtering scale can be directly measured by characterizing the coherence of correlated Ly? forest absorption in close quasar pairs, with separations small enough ?100 kpc to resolve it. We present a novel technique for this purpose, based on the probability density function (PDF) of phase angle differences of homologous longitudinal Fourier modes in close quasar pair spectra. A Bayesian formalism is introduced based on the phase angle PDF, and Markov Chain Monte Carlo techniques are used to characterize the precision of a hypothetical Jeans scale measurement, and explore degeneracies with other thermal parameters governing the IGM. A semi-analytical model of the Ly? forest is used to generate a large grid (500) of thermal models from a dark matter only simulation. Our full parameter study indicates that a realistic sample of only 20 close quasar pair spectra can pinpoint the Jeans scale to ? 5% precision, independent of the amplitude T{sub 0} and slope ? of the temperature-density relation of the IGM T=T{sub 0}(?/ ?-bar ){sup ?-1}. This exquisite sensitivity arises because even long-wavelength one-dimensional Fourier modes ?10 Mpc, i.e., two orders of magnitude larger than the Jeans scale, are nevertheless dominated by projected small-scale three-dimensional (3D) power. Hence phase angle differences between all modes of quasar pair spectra actually probe the shape of the 3D power spectrum on scales comparable to the pair separation. We show that this new method for measuring the Jeans scale is unbiased and is insensitive to a battery of systematics that typically plague Ly? forest measurements, such as continuum fitting errors, imprecise knowledge of the noise level and/or spectral resolution, and metal-line absorption.

Rorai, Alberto; Hennawi, Joseph F. [Max-Planck-Institut fr Astronomie, Knigstuhl 17, D-69117 Heidelberg (Germany); White, Martin [Department of Astronomy, University of California at Berkeley, 601 Campbell Hall, Berkeley, CA 94720-3411 (United States)

2013-10-01T23:59:59.000Z

497

Cool dwarfs in wide multiple systems. Paper 5: New astrometry of 54 wide pairs with M dwarfs  

E-Print Network [OSTI]

We investigate the membership in double, triple or higher-order-multiplicity systems of 54 pairs with at least one bright M dwarf in the solar neighbourhood. These M dwarfs are potential targets of radial-velocity surveys for exoplanets. We measure angular separations and position angles from optical images taken with TCP and CAMELOT at the IAC80 telescope at the Observatorio del Teide, and complement them with our measurements on photographic plate digitizations. We also use data in the Washington Double Star Catalogue and other bibliographic sources. We confirm the physical binding of 52 multiple systems, for which we comprehensively compile, derive and provide basic astrophysical parameters in a homogeneous way (spectral types, heliocentric distances, projected physical separations, individual masses, estimated orbital periods, binding energies). Of the 52 systems, 38 are double, 11 are triple and three are quadruple with a variety of architectures. Four systems contain white dwarfs, six systems display va...

Corts-Contreras, M; Montes, D

2015-01-01T23:59:59.000Z

498

CP Violation in W Pair Production via Photon-Photon Collisions Within the THDM-III with FCNC  

Science Journals Connector (OSTI)

The CP-violating effects in the W pair production via photon-photon collisions are investigated in the frame of the THDM-111 with complex neutral current couplings. The numerical calculations manifest the resonance effect and the counteractive behaviour in CP asymmetries between the two CP-violating contributing parts from the h0 and H0 exchanging s-channel diagrams. We conclude that if the masses of the two neutral Higgs bosons H0 and h0 are quantitatively largely separated and the colliding energy of photons is close to the mass of h0 or H0, the CP-violating effect is possibly to be observed in this process.

Han Liang; Ma WenGan; Jiang Yi

2000-01-01T23:59:59.000Z

499

Functional approach for pairing in finite systems: How to define restoration of broken symmetries in Energy Density Functional theory ?  

E-Print Network [OSTI]

The Multi-Reference Energy Density Functional (MR-EDF) approach (also called configuration mixing or Generator Coordinate Method), that is commonly used to treat pairing in finite nuclei and project onto particle number, is re-analyzed. It is shown that, under certain conditions, the MR-EDF energy can be interpreted as a functional of the one-body density matrix of the projected state with good particle number. Based on this observation, we propose a new approach, called Symmetry-Conserving EDF (SC-EDF), where the breaking and restoration of symmetry are accounted for simultaneously. We show, that such an approach is free from pathologies recently observed in MR-EDF and can be used with a large flexibility on the density dependence of the functional.

Guillaume Hupin; Denis Lacroix; Michael Bender

2011-05-30T23:59:59.000Z

500

The Differential cross section distribution of Drell-Yan dielectron pairs in the z boson mass region  

SciTech Connect (OSTI)

We report on a measurement of the rapidity distribution, d{sigma}/dy, for Z=Drell-Yan {yields} ee events produced in p{bar p} collisions at {radical}s = 1.96 TeV. The data sample consists of 2.13 fb{sup -1} corresponding to about 160,000 Z/Drell-Yan {yields} ee candidates in the Z boson mass region collected by the Collider Detector at Fermilab. The d{sigma}/dy distribution, which is measured over the full kinematic range for e{sup +}e{sup -} pairs in the invariant mass range 66 < M{sub ee} < 116 GeV/c{sup 2}, is compared with theory predictions. There is good agreement between the data and predictions of Quantum Chromodynamics in Next to Leading Order with the CTEQ6.1M Parton Distribution Functions.

Han, Jiyeon; /Rochester U.

2008-11-01T23:59:59.000Z