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1

Laboratori Nazionali del Gran Sasso ENVIRONMENTAL POLICY  

E-Print Network [OSTI]

employment of resources, connected to the main aspects, such as water, energy and waste management as well and the other involved parties must cooperate, as much as possible, to improve the Environmental ManagementLaboratori Nazionali del Gran Sasso ENVIRONMENTAL POLICY The Gran Sasso National Laboratory (LNGS

2

CERN Neutrinos to Gran Sasso (CNGS) First Beam  

E-Print Network [OSTI]

The CNGS, CERN Neutrinos to Gran Sasso project, aims at directly detecting muon-neutrino to tau-neutrino oscillations. An intense muon-neutrino beam (10 to the 17 muon neutrinos)is generated at CERN per day and directed towards the Gran Sasso National Laboratory, LNGS, in Italy, 732 km away from CERN. In LNGS large and complex detectors will allow to detect, in particular, the rare tau-neutrinos created by â??oscillation' from muon-neutrinos on their way between CERN and LNGS. On average around three tau-neutrino events are predicted per year in each of the ~2000 ton detectors. The construction of the CNGS beam facility started in September 2000, and the first neutrino beam has been produced in July 2006. In the presently approved physics programme, it is foreseen to run the facility for five years.

Gschwendtner, E

2006-01-01T23:59:59.000Z

3

E-Print Network 3.0 - anaerobios gran negativos Sample Search...  

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

los problemas de programacin que estudiaremos de ahora en adelante podemos Summary: creatividad. Sin embargo, una gran cantidad de problemas de programacin pueden ser resueltos...

4

Downstream variations in the width of bedrock channels David R. Montgomery and Karen B. Gran  

E-Print Network [OSTI]

Downstream variations in the width of bedrock channels David R. Montgomery and Karen B. Gran the Mokelumne River show that bedrock channel width decreases substantially downstream at the contact between show systematic channel widening after flood flows and debris flow impacts. We conclude that downstream

Montgomery, David R.

5

Results on Dark Matter and beta beta decay modes by DAMA at Gran Sasso  

E-Print Network [OSTI]

DAMA is an observatory for rare processes and it is operative deep underground at the Gran Sasso National Laboratory of the I.N.F.N. (LNGS). Here some arguments will be presented on the investigation on dark matter particles by annual modulation signature and on some of the realized double beta decay searches.

R. Bernabei

2007-05-21T23:59:59.000Z

6

Measurement of the energy spectrum of underground muons at Gran Sasso with a transition radiation detector  

E-Print Network [OSTI]

We have measured directly the residual energy of cosmic ray muons crossing the MACRO detector at the Gran Sasso Laboratory. For this measurement we have used a transition radiation detector consisting of three identical modules, each of about 12 m^2 area, operating in the energy region from 100 GeV to 1 TeV. The results presented here were obtained with the first module collecting data for more than two years. The average single muon energy is found to be 320 +/- 4 (stat.) +/- 11 (syst.) GeV in the rock depth range 3000-6500 hg/cm^2. The results are in agreement with calculations of the energy loss of muons in the rock above the detector.

The MACRO Collaboration; M. Ambrosio et al

1998-07-09T23:59:59.000Z

7

Om du vill f en skymt av barkborrarna eller deras runristarlika spr, g ut i granskogen. P gammal gran och tall kan du frsiktigt plocka ls barkbitar,  

E-Print Network [OSTI]

Om du vill få en skymt av barkborrarna eller deras runristarlika spår, gå ut i granskogen. På gammal gran och tall kan du försiktigt plocka lös barkbitar, för att där under hitta spåren efter bita sig in i en nyfallen gran. Väl inne i barken börjar vår man att fisa ­ vad nu? Han förvandlar

8

First Results from the DarkSide-50 Dark Matter Experiment at Laboratori Nazionali del Gran Sasso  

E-Print Network [OSTI]

We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a (46.4+-0.7) kg active mass, operated inside a 30 t organic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a (1422+-67) kg d exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1x10^-44 cm^2 for a WIMP mass of 100 GeV/c^2.

P. Agnes; T. Alexander; A. Alton; K. Arisaka; H. O. Back; B. Baldin; K. Biery; G. Bonfini; M. Bossa; A. Brigatti; J. Brodsky; F. Budano; L. Cadonati; F. Calaprice; N. Canci; A. Candela; H. Cao; M. Cariello; P. Cavalcante; A. Chavarria; A. Chepurnov; A. G. Cocco; L. Crippa; D. D'Angelo; M. D'Incecco; S. Davini; M. De Deo; A. Derbin; A. Devoto; F. Di Eusanio; G. Di Pietro; E. Edkins; A. Empl; A. Fan; G. Fiorillo; K. Fomenko; G. Forster; D. Franco; F. Gabriele; C. Galbiati; A. Goretti; L. Grandi; M. Gromov; M. Y. Guan; Y. Guardincerri; B. Hackett; K. Herner; E. V. Hungerford; Al. Ianni; An. Ianni; C. Jollet; K. Keeter; C. Kendziora; S. Kidner; V. Kobychev; G. Koh; D. Korablev; G. Korga; A. Kurlej; P. X. Li; B. Loer; P. Lombardi; C. Love; L. Ludhova; S. Luitz; Y. Q. Ma; I. Machulin; A. Mandarano; S. Mari; J. Maricic; L. Marini; C. J. Martoff; A. Meregaglia; E. Meroni; P. D. Meyers; R. Milincic; D. Montanari; A. Monte; M. Montuschi; M. E. Monzani; P. Mosteiro; B. Mount; V. Muratova; P. Musico; A. Nelson; S. Odrowski; M. Okounkova; M. Orsini; F. Ortica; L. Pagani; M. Pallavicini; E. Pantic; L. Papp; S. Parmeggiano; R. Parsells; K. Pelczar; N. Pelliccia; S. Perasso; A. Pocar; S. Pordes; D. Pugachev; H. Qian; K. Randle; G. Ranucci; A. Razeto; B. Reinhold; A. Renshaw; A. Romani; B. Rossi; N. Rossi; S. D. Rountree; D. Sablone; P. Saggese; R. Saldanha; W. Sands; S. Sangiorgio; E. Segreto; D. Semenov; E. Shields; M. Skorokhvatov; O. Smirnov; A. Sotnikov; C. Stanford; Y. Suvorov; R. Tartaglia; J. Tatarowicz; G. Testera; A. Tonazzo; E. Unzhakov; R. B. Vogelaar; M. Wada; S. Walker; H. Wang; Y. Wang; A. Watson; S. Westerdale; M. Wojcik; A. Wright; X. Xiang; J. Xu; C. G. Yang; J. Yoo; S. Zavatarelli; A. Zec; C. Zhu; G. Zuzel

2015-02-27T23:59:59.000Z

9

agudo por gran: Topics by E-print Network  

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

por la investigacin cient-fica. El programa La Ciudad' intenta acercar la ciencia a la sociedad a travs de encuentros con escolares, profesores, o exposiciones que...

10

Mor-Gran-Sou Electric Coop Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories onFocus Area EnergyMohawk MunicipalMontvale, New Jersey:Water

11

ENERGIA E`OLICA La font d'energia amb el creixement mes gran  

E-Print Network [OSTI]

.lada: 48.000 MW Web World Wind energy Association http://www.wwindea.org Web Associaci´o danesa de la ind = 1 2 mv2 Pot`encia P = dEk dt = 1 2 dm dt v2 dm dt = Sv P = 1 2 Sv3 #12;RECURSOS EOLICS 1-2% de l L'ENERGIA E`OLICA #12;MERCAT PER FABRICANTS #12;PARCS E`OLICS MARINS #12;

Batiste, Oriol

12

E-Print Network 3.0 - adultos del gran Sample Search Results  

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

2008 Victoria Tur Vies Summary: existen tres estilos o formas de entender la infan- cia desde el punto de vista del adulto: Desprecio... complacerlos, hasta para cuidarlos....

13

La Universidad de Alicante mide el gran impacto de las marcas en Espaa como motor econmico  

E-Print Network [OSTI]

comercio, en la proyección exterior del país, en el impulso de la I+D, en la contribución al empleo, en su participación en el comercio electrónico en España. El análisis de su impacto sobre el empleo es considerado por redactores de informe como uno de sus elementos fundamentales. Según estadísticas de 2010, las

Escolano, Francisco

14

Double {beta} experiments with the help of scintillation and HPGe detectors at Gran Sasso  

SciTech Connect (OSTI)

A search for double beta decay of {sup 64,70}Zn, {sup 180,186}W was carried out by using low background ZnWO{sub 4} crystal scintillators, while a CeCl{sub 3} scintillation detector was applied to investigate 2{beta} processes in {sup 136,138,142}Ce. A search for 2{beta} decay of {sup 96,104}Ru, {sup 156,158}Dy, {sup 190,198}Pt and study of 2{nu}2{beta} decay of {sup 100}Mo to the first excited 0{sup +} level of {sup 100}Ru were realized by ultra-low background HPGe {gamma} spectrometry. Moreover, CdWO{sub 4} crystal scintillators from enriched {sup 106}Cd and {sup 116}Cd isotopes were developed to search for 2{beta} decay of {sup 106}Cd and {sup 116}Cd. Finally, experiments aimed to investigate {sup 96,104}Ru and {sup 116}Cd are in progress and a new phase of the experiment to search for 2{beta} processes in {sup 106}Cd is in preparation.

Barabash, A.; Konovalov, S. I.; Umatov, V. I. [Institute of Theoretical and Experimental Physics, Moscow (Russian Federation); Belli, P.; D'Angelo, S.; Di Marco, A. [INFN, Sezione di Roma ''Tor Vergata'', Rome (Italy); Bernabei, R. [INFN, Sezione di Roma ''Tor Vergata '', Rome (Italy); Dipartimento di Fisica, Universita di Roma ''Tor Vergata'', Rome (Italy); Boiko, R. S.; Chernyak, D. M.; Danevich, F. A.; Kobychev, V. V.; Kropivyansky, B. N.; Kudovbenko, V. M.; Nagorny, S. S.; Podviyanuk, R. B.; Polischuk, O. G.; Tretyak, V. I.; Vyshnevskyi, I. M.; Yurchenko, S. S. [Institute for Nuclear Research, Kyiv (Ukraine); Brudanin, V. B. [Joint Institute for Nuclear Research, Dubna (Russian Federation); and others

2011-12-16T23:59:59.000Z

15

Sustainable vector control and management of Chagas disease in the Gran Chaco, Argentina  

E-Print Network [OSTI]

and economic development in Latin America, especially for the rural poor. We report the long-term effects cruzi In Latin America, the burden of Chagas disease was estimated as 2.7 times the joint burden in 1985, transmission resurged in 2­3 years. Renewed interventions in 1992 followed by sustained

Cohen, Joel E.

16

E-Print Network 3.0 - al gran invento Sample Search Results  

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

Summary: al caso de un emigrante mallorqun (Manuel Gabucio Maroto), que pas a Tabasco, Mxico, alrededor de... al caudal de espaoles arribados a nuestro pas, y con...

17

Ecoturisme, conservació de la natura i desenvolupament local: el cas de Mèxic, Amèrica Central i les Grans Antilles.  

E-Print Network [OSTI]

??Ecotourism, preservation of nature and local development: the case of Mexico, Central America and the Great Antilles AREA OF STUDY AND METHODOLOGY The present thesis… (more)

Nel·lo Andreu, Marta Gemma

2003-01-01T23:59:59.000Z

18

219itinerari d'impresa ~ inverno 2006-2007 / opere / sonde Il nuovo spirito del capitalismo un gran-  

E-Print Network [OSTI]

'Ecole des Hautes Etu- des en Sciences Sociales di Parigi, è stato il principale artefice del rinnovamento Chiapello, più giovane, anche lei sociologa,insegna alla Haute Eco- le Commerciale a Parigi.Nel corso degli

Paris-Sud XI, Université de

19

aux lignes de force il y a une diffrence de traction de mme gran-deur. 1'I. Quincke a remarqu que, dans le sulfure de carbone,  

E-Print Network [OSTI]

dans l'huile de colza, lavée soigneusement au sulfure de carbone et laissée dans ce liquide pendant 22 tournait de nouveau, mais pendant 2 heures seulement, dans le sulfure de carbone, avec une différence de quart d'heure, méme à 90°. L'auteur a opéré sur les sels suivants : AzH�,Az03 K3FeCy6 KBr (AzH')2 S04

Boyer, Edmond

20

How The 17 GeV OPERA Superluminal Neutrino From CERN Arrived At Gran Sasso Without Desintegration??:It Was Carried Out By A  

E-Print Network [OSTI]

??:It Was Carried Out By A Natario Warp Drive.Explanation for the results obtained by Glashow-Cohen and Gonzalez introduced the idea of the micro Warp Drive:Microscopical particle-sized Warp Bubbles carrying inside sub in the Early Universe after the Big Bang and they used the Alcubierre Warp Drive geometry in their mathematical

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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

En Medio De Un Gran Circo: La Ciudad De México A Tráves De Las Crónicas Musicales De Maldita Vecindad Y Los Hijos Del 5º Patio  

E-Print Network [OSTI]

y económicos causados por el sismo: “Se habló de un númeropasadas dos semanas del sismo; entre cien y ciento cincuentadel terremoto declara que “El sismo reveló que de todos los

Lujan, Soledad

2014-01-01T23:59:59.000Z

22

R. Winther, B.A. Gran, and G. Dahll (Eds.): SAFECOMP 2005, LNCS 3688, pp. 136 150, 2005. Springer-Verlag Berlin Heidelberg 2005  

E-Print Network [OSTI]

arguments. Results illustrating the benefits and safety of the SCANN in a Gas Turbine Engine Model. © Springer-Verlag Berlin Heidelberg 2005 Using Safety Critical Artificial Neural Networks in Gas Turbine Aero networks. This paper examines the practicalities of using the SCANN and SLANN for Gas Turbine Aero

Kelly, Tim

23

E-Print Network 3.0 - adenom efter peroral Sample Search Results  

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

SAMMANFATTAR AKTUELL FORSKNING Summary: - granen bttre n sitt rykte Att plantera gran efter tidigare rotrteinfekterad gran gr bttre n mnga... viktig faktor fr...

24

04/09/13 The US-Italy Physics Program at Laboratori Nazionali del Gran Sasso (LNGS) (15 October 2013) https://agenda.infn.it/conferenceOtherViews.py?fr=no&showSession=all&detailLevel=contribution&confId=6760&view=standard&showDate=all 1/1  

E-Print Network [OSTI]

' Speaker: Giovanni De Lellis (Università degli Studi di Napoli "Federico II") 16:20 Neutrinoless Double Beta Decay16:40 18:00 NEXT 20' Speaker: J. J. Gomez cadenac (Instituto de Fisica Corpuscolar valencia

25

E-Print Network 3.0 - ampliada los contributos Sample Search...  

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

GH &iFHUHV QWRQLR 3ODD &DUORV 5DPRV OIRQVR *DR -RVp XLV *RQiOH Summary: realiza gran nmero de los accesos que la Red recibe diariamente, pero existe el gran...

26

INVESTIGACIN INVESTIGACIN  

E-Print Network [OSTI]

por su fuerte exposición a los riesgos y por una gran vulnerabilidad frente a: sismos, derrumbes investigaciones se centran en los sismos de gran intensidad, la dinámica eruptiva de los volcanes cercanos a las

27

Revue de presse hebdomadaire 07 au 13 fvrier 2011  

E-Print Network [OSTI]

las emisiones. Supplemento Domingo EL KARMAPA El 'Obama Lama' la lía (Por FRANCISCO PEREGIL) : El gran

Rennes, Université de

28

ACTA ARITHMETICA LXXVIII.4 (1997)  

E-Print Network [OSTI]

(Davis and Webb [2], Gran- ville [4]), m = 5 (Hexel and Sachs [5]), m = 8 (Granville 141, Huard, Spearman

Williams, Kenneth Stuart

29

julio-septiembre2006Cinvestav65 Mesoamrica es el centro de origen de muchos  

E-Print Network [OSTI]

gran cantidad de biomasa y es una de las pocas especies vegetales de las que se consumen hojas y granos

30

ANA?LISIS BIOLO?GICO PESQUERO DE LA PESQUERI?A CON RED AGALLERA DE DERIVA EN LA PENI?NSULA DE BAJA CALIFORNIA DURANTE EL PERIODO 1999-2008  

E-Print Network [OSTI]

esta gran cantidad de biomasa representaba un problema parauna alta diversidad y poca biomasa. La tercera masa de agua

Olvera, Miguel A. E.

2009-01-01T23:59:59.000Z

31

VII Congreso Ibrico sobre Gestin y Planificacin del Agua "Ros Ibricos +10. Mirando al futuro tras 10 aos de DMA" 16/19 de febrero de 2011,Talavera de la Reina  

E-Print Network [OSTI]

consti- tuya un recurso clave para muchas regiones, donde ha permitido un gran desarrollo económico

Paris-Sud XI, Université de

32

SPIE Europe spie.org/events/emtadvance TEL: +44 29 20 89 4747 spieeurope@spieeurope.org 1 Building a Better Future with Light  

E-Print Network [OSTI]

, and Applications 2­4 May 2007 Gran Hotel Costa Meloneras Maspalomas, Gran Canaria, Spain Microtechnologies (Spain) Roberto Sarmiento Rodríguez, Univ. Las Palmas de Gran Canaria (Spain) Steve Kang, Univ, Koç Univ. (Turkey) Cochairs: Gonçal Badenes, Institut de Ciències Fotòniques (Spain); Giancarlo C

Islam, M. Saif

33

E-Print Network 3.0 - agregado grueso reciclado Sample Search...  

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

RECICLADO Y... avances cientficos se enfocan en gran Fabricacin con cero emisiones Reciclado y valorizacin de... primas, reciclado de productos, ms adaptados al...

34

E-Print Network 3.0 - algunos efectos del Sample Search Results  

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

climtico 2001 Summary: muestran los efectos del gran incremento creciente de las emisiones antropgenas durante la era industrial... los ltimos decenios. Algunos aspectos...

35

E-Print Network 3.0 - aspectos relevantes para Sample Search...  

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

2. ESTRUCTURA A GRAN ESCALA DEL Source: Canarias, Instituto de Astrofisica de (IAC) Collection: Physics 11 Evaluacion en entornos de recomendacion mediante tecnicas de...

36

E-Print Network 3.0 - aluminio primario del Sample Search Results  

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

y que se reciben en el gran cuenco ... Source: Canarias, Instituto de Astrofisica de (IAC) Collection: Physics 7 Franois TESSIER CRIA Universit Paris 1 Panthon-Sorbonne 1...

37

E-Print Network 3.0 - artroplastia total cementada Sample Search...  

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

del Arco de Cazorla (Jan, Cordillera Summary: cementadas, de unos 10 metros de poten- cia, con estratificaciones cruzadas planares y en artesa de gran Source: Herrera, Carlos M....

38

E-Print Network 3.0 - al vih primer Sample Search Results  

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

del mundo dedicadas al desarrollo: un conjunto de objetivos sen- cillos pero de gran envergadura... contra el hambre, pero en algunas regiones ha habido retroceso debido...

39

E-Print Network 3.0 - analyse thermique differentielle Sample...  

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la dilatation thermique du cuivre. Nous trouvons une variation relative... influencer les gran- deurs ci-dessus et notamment la dilatation thermique. Nous avons pu ainsi recemment...

40

E-Print Network 3.0 - avellaneda entre cuba Sample Search Results  

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tres a la relacin entre Espaa, Iberoamrica y Masonera, formando el primer gran foro para los Source: Ecole Polytechnique, Centre de mathmatiques Collection:...

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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

E-Print Network 3.0 - adolescente effets tardifs Sample Search...  

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de investigaciones en dos continentes: Europa y Amrica. Es tambin el resultado de una gran curiosidad e inters Summary: , Robin se interes a los adolescentes trabajadores...

42

E-Print Network 3.0 - acting andrs martin Sample Search Results  

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het... werktijd en in binnen- en buitenland. Wissam Chemissany, Andres Collinucci, Ulf Gran, Rein Hal- ... Source: Groningen, Rijksuniversiteit - Centre for Ecological and...

43

E-Print Network 3.0 - aislamientos del citrus Sample Search Results  

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de la UAM cuenta su experiencia en el marco del proyecto Limnopolar. L... durante gran parte del verano austral. Una de sus particularidades ms destaca- ble es la ......

44

E-Print Network 3.0 - aplicando eficiencia ecologica Sample Search...  

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los problemas de programacin que estudiaremos de ahora en adelante podemos Summary: creatividad. Sin embargo, una gran cantidad de problemas de programacin pueden ser resueltos...

45

adhesivas amarillas utilizadas: Topics by E-print Network  

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

de gran tamao presentan carac- ter-sticas estructurales generales. Predo- minan Fortuna, Miguel A. 83 CMNECILAMCE 2007 Porto, 13 a 15 de Junho, 2007 Engineering Websites...

46

Mcanique et mathmatiques Alexandrie : le cas de Hron 1 Bernard VITRAC, CNRS-UMR 8567, Centre Louis Gernet, Paris  

E-Print Network [OSTI]

la Cienca, animé par J. L. Montesinos (Ténérife, 21/10/98; Las Palmas de Gran Canaria, 22/10/98), le

Paris-Sud XI, Université de

47

M E M O R I A S EXACTAS, FlSICAS Y NAT  

E-Print Network [OSTI]

paredes de un &lido, de gran relevancia en Ingenieria Quimica. (*) Resultados presentddos en la aparecen en numerosas aplicaciones: filtracibn de fluidos en medios porosos, reacciones quimicas isot

Díaz, Jesús Ildefonso

48

¿ES EL PROCESO DE “CONSTITUCIONALIZACIÓN” (JUDICIALIZACIÓN) DEL DERECHO PRIVADO CONTRARIO AL ANÁLISIS ECONÓMICO DEL DERECHO?  

E-Print Network [OSTI]

contrato sea absoluto, bajo la sola condición imperativo queel proceso de captura, sino su sola existencia. Al estar elesta legislación por sí sola no hubiera representado un gran

Súmar A., Óscar

2010-01-01T23:59:59.000Z

49

atmospheric 222rn decay: Topics by E-print Network  

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

performed in the Gran Sasso Laboratory (LNGS) by detecting the gamma rays from the radon progeny. The motivation was to monitor the stability of radioactivity measuring several...

50

airborne radioactivity measurements: Topics by E-print Network  

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

performed in the Gran Sasso Laboratory (LNGS) by detecting the gamma rays from the radon progeny. The motivation was to monitor the stability of radioactivity measuring several...

51

E-Print Network 3.0 - ante las medicinas Sample Search Results  

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

deAl-Idrisi 1154 Summary: . Gran conocedor de todas las disciplinas del saber: medicina, filosofa, matemticas, astronoma... llevado a la ciudad a una poca de...

52

Handelshgskolan 2011RSMAGASIN  

E-Print Network [OSTI]

M ­ Missbruk Med konsekvenser eva halvarsson vill ha fler perspektiv på de finansiella frågorna Mitt i utbildningen och redan chef #12;Grafisk form & produktion: Frank & Earnest Fotografer: Carina Gran, Anja: Carina Gran Handelshögskolan är miljöcertifierad enligt ISO14001. EFMD Handelshögskolan är ackrediterad

Harding, Karin

53

National Aeronautics and Space Administration www.nasa.gov  

E-Print Network [OSTI]

Rani Gran Goddard TV, THEMIS Producer 0/286-248 44/226-77 cell Rani .C .Gran@nasa .gov NASA Kennedy window of 6:08 P .M . ­ 6:27 P .M . The Delta II rocket carrying THEMIS will lift off from Launch Complex

Waliser, Duane E.

54

MEDIDAS DE AHORRO DE CONSUMO ENERGTICO EN ILUMINACIN  

E-Print Network [OSTI]

de luminaria que se va a instalar, debido a que algunas causan un gran impacto en el consumo final de;adecuar las luminarias en función de dichos requerimientos. Aunque en el mercado existe una gran variedad de productos, la mejor elección que se puede adoptar es la compra de luminarias de bajo consumo

Rey Juan Carlos, Universidad

55

Transparencia y rendición de cuentas” (“Transparency and Accountability”)  

E-Print Network [OSTI]

yen los registros de emisiones tóxicas, una de las medidastérminos de la reducción de emisiones por parte de gran- dese l caso del registro de emisiones tóxicas en los Estados

Fox, Jonathan A

2008-01-01T23:59:59.000Z

56

E-Print Network 3.0 - agroindustria las implicaciones Sample...  

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

2. ESTRUCTURA A GRAN ESCALA DEL Source: Canarias, Instituto de Astrofisica de (IAC) Collection: Physics 14 Nota de prensa CSIC c o m u n i c a c i n Summary: .csic.es...

57

E-Print Network 3.0 - atenuada del virus Sample Search Results  

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

Very Large Telescope (VLT) y el Gran ... Source: Canarias, Instituto de Astrofisica de (IAC) Collection: Physics 4 Ciclo de vida del VIH Enlace y fusin: El VIH empieza su ciclo de...

58

an Commotion home schools  

E-Print Network [OSTI]

Sea Gran drink contribu 2010 Scho on, EBR · Ce Denham Spr istian Academ aptist Co-op, E Elementary, L Fel mentary, Livi entary, EBR · ntary, EBR · ville Primary, Silliman Instit School, Assu e Elementary

Harms, Kyle E.

59

CHRONOLOGIE DE LA VIE DE F. GALIANI 1728 (2 dcembre) : Naissance de Ferdinando Galiani Chieti. Septime et dernier enfant de  

E-Print Network [OSTI]

-académique : Componimenti varii per la morte di Domenico Iannaccone Carnefice della Gran Corte della Vicaria, raccolti e governo, 1750, environ (1751-1753) Voyage dans les principales villes d'Italie, Rome, Florence, Padoue

Paris-Sud XI, Université de

60

UNIVERSIT SORBONNE NOUVELLE PARIS 3 COLE DOCTORALE EUROPE LATINE ET AMRIQUE LATINE  

E-Print Network [OSTI]

;2 A Franck, mi compañero, quien con gran paciencia, amor y comprensión colaboró más que nadie durante el ville moderne ..

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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

Elena Giulia Rossi "Intelligenza collettiva e intelligenza connettiva  

E-Print Network [OSTI]

dall'alfabeto. La stampa consentì di produrre libri rapidamente, a bassi costi e in gran numero. Il da Frank Popper al museo La Ville di Parigi, 1983 Roy Ascott La Plissure du Texte #12;Roy Ascott La

Di Pillo, Gianni

62

American Journal of Botany: e26e30, 2010; http://www.amjbot.org/ 2010 Botanical Society of America American Journal of Botany: e26e30. 2010.  

E-Print Network [OSTI]

1.03 (Research Genetics, Hunts- ville, AL). For primer testing, DNA was isolated from silica from the islands of Madeira, Tenerife, Gran Canaria, La Gomera, La Palma, and El Hierro, as well

Jordano, Pedro

63

Asie du Sud : les amateurs-experts de la violence collective Par Laurent GAYER  

E-Print Network [OSTI]

partis politiques qui se disputent le contrôle de la plus grande ville du pays. Alors que le compte à (Mouvement national unifié, MQM). Issu d'un milieu populaire (il a gran

Boyer, Edmond

64

Pensar y construir la ciudad moderna. Planes y proyectos para Buenos Aires.  

E-Print Network [OSTI]

y Thalmann de la Universidad de Buenos Aires; de los programas PIR- VILLES y Les Mots de la Ville ciudad era en este momento un gran terreno en construcción. Las obras de infraestructura y las del puerto

Richner, Heinz

65

Hydrogen Hydrogen FusionFusionFusionFusionFusionFusion  

E-Print Network [OSTI]

100.000 years LNGS Laboratori Nazionali del Gran Sasso Borexino THE THERMONUCLEAR FUSION REACTIONHydrogen Hydrogen Fusion Deuterium FusionFusionFusionFusionFusionFusion THE SUN AS BOREXINO SEES

Heiz, Ulrich

66

3040 -XIV Encuentro de Latinoamericanistas Espaoles AUMENTO DE LA PRODUCTIVIDAD  

E-Print Network [OSTI]

televisiones en blanco-y- negro. Sin embargo, últimamente, podemos encontrar televisores de HD, Digital y 3D televisores chinos son una gran amenaza para los productores en México. El mercado principal de ambos es

Paris-Sud XI, Université de

67

DIFFUSION QUASI ELASTTOUE SUR DES GROUPEMENTS DE NUCLEONS DANS LES NOYAUX C 156 MeV  

E-Print Network [OSTI]

residual nucleus energy spectra appear to be in agreement with the inter- mediate coupling shell probabilité relative pour 6 3 Li-» t + He est par contre d'un ordre de gran- deur plus petit. Les spectres d

Boyer, Edmond

68

STA'n:MENT OF CONSIDERAT IONS REQUEST BY CORNING J 'CORP ORA...  

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

not license, assig n, or othe rwise transfer an y wai ved in ve ntion to any entity unl ess th at entity agrees to these same requirements. Gran ting this waiver is not...

69

Motivation Linear algebra Metaheuristics CPU+GPU Perspectives Modelling the execution time of hybrid-parallelism  

E-Print Network [OSTI]

´andez; Francisco Almeida, University of La Laguna; Melquiades P´erez-P´erez, University of Gran Canaria) Electrical? Scientific problems: Green functions in Electromagnetism (Carlos P´erez-Alcaraz; Alejandro ´Alvarez

Giménez, Domingo

70

RELACIN ENTRE NDVI Y CONTENIDO DE METALES EN RHIZOPHORA MANGLE EN EL SUROESTE DE PUERTO RICO  

E-Print Network [OSTI]

puede tener un impacto muy significativo. Figura 1: Mangle Blanco (Leguncularia gran tolerancia al ambiente salado. Sus raíces protuberantes suplen de aire y proveen soporte y

Gilbes, Fernando

71

argon 50: Topics by E-print Network  

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

Preprints Summary: DarkSide (DS) at Gran Sasso underground laboratory is a direct dark matter search program based on TPCs with liquid argon from underground sources. The DS-50...

72

argon 45: Topics by E-print Network  

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

Preprints Summary: DarkSide (DS) at Gran Sasso underground laboratory is a direct dark matter search program based on TPCs with liquid argon from underground sources. The DS-50...

73

RECORRIDOS, ESPACIOS Y DESÁNIMOS POR LA CIUDAD DE MÉXICO EN CARLOS MONSIVÁIS  

E-Print Network [OSTI]

solo partido político, una sola religión. . . ). Uno de losciudad está en el centro como sola y tumultuaria (Monviáis,de todos atrapa en una sola gran vertiente, es la riqueza

Karam, Tanius

2011-01-01T23:59:59.000Z

74

E-Print Network 3.0 - analysis historia termica Sample Search...  

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

de les marees Energia termica oce... . 12;ENERGIA TERMICA OCEANICA El mar acumula energia solar a gran escala (14 de l'energia que arriva... superficials i a 1000 m de...

75

Sean Hewitt Wild Mountain Thyme  

E-Print Network [OSTI]

Se´an Hewitt Wild Mountain Thyme Christmas day. We're all at my gran's house, The full, Catholic notes to Wild Mountain Thyme, And our voices warm And swell around The sunken armchair left Empty since

Robertson, Stephen

76

Engendering Vice: The Exemplarity of the Old French Fabliaux  

E-Print Network [OSTI]

Through close examination of thirteen representative fabliaux (L'anel qui faisoit les vis grans et roides, Connebert, La dame escoillee, Le foteor, Le moigne, Les perdris, Le pescheor de Pont seur Saine, Richeut, Les quatre ...

Horton, Ingrid Diane

2008-01-25T23:59:59.000Z

77

NECESIDADES DE ENTRENAMIENTO PARA LA PRXIMA GENERACIN DE EDAFLOGOS  

E-Print Network [OSTI]

gran parte de esta altamente relevante para la planificación y ejecución de inventarios del recurso y fortalecer la calidad de los inventarios (SRI), reducir el tiempo de ejecución y eficientizar los

Rossiter, D G "David"

78

Boccaccio the Philosopher: The Language of Knowledge in the Decameron  

E-Print Network [OSTI]

et multorum ignorantia, Parigi, 1906, p. 68 ff. ). [Raisingapparai mentre dimorai a Parigi, quanto tu in una sola nottemerchants in I.2 (". . . in Parigi fu un gran mercatante e

Andrei, Filippo

2012-01-01T23:59:59.000Z

79

B u t l l e t I n fo r m a t i u U N I V E R S I T A T  

E-Print Network [OSTI]

- culats al voltant de figures femenines tan destacables com ara Isabel de Ville- na, Christine de Pizan MERC� SALA, IN MEMORIAM El passat 7 de maig, tota la comunitat universitària de la UPF va rebre amb gran Generalitat de Catalunya per ocupar el càrrec, Mercè Sala va exercir-lo amb gran compromís i dedicació, com

Geffner, Hector

80

Revue de presse hebdomadaire 07-13 mai 2012  

E-Print Network [OSTI]

, sobre todo en España. La Puerta del Sol vuelve a desbordarse y se confirma como el gran bastión de los, disertar en Oxford, actuar en Londres con la filarmónica de N. York. 48 horas con el gran pianista de su ! (por Angeles Castro) : plus de deux cent familles habitant dans des foyers gérés par la ville de Buenos

Rennes, Université de

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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

Balance de la temporada teatral bonaerense 1972.  

E-Print Network [OSTI]

, Buenos Aires, como es lógico suponer, se mantiene indiscutidamente a la cabeza del movimiento teatral argentino. Como podrá juzgarse por las tablas informativas1 que siguen este análisis, la extensa temporada 1972, representa una muestra de gran.... En cuanto a calidad y realización encabezan la larga lista de estrenos de autor nacional La gran histeria nacional de Patricio Esteve, que se estrenó en el Teatro de la Fábula el 8 de abril, bajo la dirección de Julio Tahier y con música original y...

Cajiao Salas, Teresa

1973-10-01T23:59:59.000Z

82

Siljansfors frskspark Hyggesfritt,bldning,  

E-Print Network [OSTI]

det i våra vanligaste skogstyper? Vem vill ha det? Den 15-17 september reder vi ut be- greppen med tre exkursion till försöksytor i skiktade skogar av tall och gran. 16 september kl. 8:30-16: Internationell gran och fröträdsställning av tall. Europeiska jordbruksfonden för landsbygdsutveckling: Europa

83

Continuous feeding of hygromycin B as a poultry anthelmintic and its effect upon laying house performance  

E-Print Network [OSTI]

of birds on continuous feeding of hygrcnycin Bo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o)) TtLble 1(. Statistical coapezison of grans of feed per gran of egg for chickens on continuous feeding of hygromycin B. . + Table 18. Statistical. c~son of veight changes..., there is need for an anthelmintic which vill provide continuous control. Iygrcisycin, which has been used successfully as a svine anthelmintic, vas tested to determine its prac- tical use as a poultry anthelmintic which may be fed continuously in the ration...

Foster, Robert Grant

1959-01-01T23:59:59.000Z

84

CURRENT AND PAST RESEARCH Research on Biodiversity and Ecosystem Services  

E-Print Network [OSTI]

Science Foundation gran on Coupled Nat- ural and Human Systems. The effort is looking at Acequia water systems in northern New Mexico and linking culture and nature in an integrated analysis of commu- nity, NRCS, and ARS on using alternative future scenarios using climate change urban growth to identify

Johnson, Eric E.

85

27ECOLOGIA COMPORTAMENTAL NA INTERFACE FORMIGA-PLANTA-HERBVORO Oecol. Bras., 13(1): 27-44, 2009  

E-Print Network [OSTI]

defender recursos com grande eficiência. A vegetação de áreas tropicais é rica em fontes de alimentos a complejos sistemas de comunicación que permiten a las hormigas reclutar individuos y defender recursos con gran eficiencia. La vegetación de las regiones tropicales es rica en fuentes de alimento renovables

Oliveira, Paulo S.

86

Artculo publicado en "Geogaceta", 32: 191-194. 2002 Sobre la contaminacin microbiolgica del acufero de la  

E-Print Network [OSTI]

, 1986a y 1995; ITGE, 1989). Sus recursos renovables son del orden de 150 hm 3 /año y las reservas a partir de recursos superficiales de Sierra Nevada, si bien tras la última gran sequía (1992-95), se

Castillo, Antonio

87

Les groupes financiers et industriels au service du roi -Espagne Fin XVIIe -dbut XVIIIe sicle  

E-Print Network [OSTI]

'une part de la puissance publique y avaient massivement recours, les évêques, les seigneurs, les villes importance au XVIIIe siècle. Voir, entre autres: Torres Sánchez (Rafael), "El gran negocio de la época, la

Paris-Sud XI, Université de

88

LA RUNION, MADAGASCAR, LES D'AFRIQUE ? Vincent CAPDEPUY  

E-Print Network [OSTI]

regard la tèr, ou oi na Madagascar, ou oi nana lo gran kontinan afrikin. Donk moi lé Afrikin déza par jusquà la ville du Cap au Sud, du cap Guardafui à lEst jusquaux îles du Cap-Vert à lOuest, lAfrique est

Paris-Sud XI, Université de

89

www.u-bordeaux.fr/ Vie-des-campus/Culture  

E-Print Network [OSTI]

les complexés. Rapidement, la traversée de la ville en car devient prétexte à tous les jeux, toutes gratuite ma 23 sept 12 h 30 ATTRACTION FORAINE Le gran'rail/ coiffeur nomade Cie Attractions et Phénomènes

Saut, Olivier

90

Canadian Journal of Archaeology/Journal Canadien d'Archologie 37:4869 (2013) Corresponding author  

E-Print Network [OSTI]

) Corresponding author: Université de Montréal, Anthropologie, C.P. 6128 Centre-Ville, Montréal, QC, Canada H3T 3J. This is due to significant discov- eries made at Atapuerca (at Gran Dolina and Sima de los Huesos) during

91

Th`ese presentee pour obtenir le grade de DOCTEUR DE L'ECOLE POLYTECHNIQUE  

E-Print Network [OSTI]

villes visit´ees, la fatigue et la joie de la d´ecouverte, et, en g´en´eral, les mille exp´eriences qu profondamente riconoscente a Giovanni: il primo passo `e sempre di gran lunga il pi`u importante. E altrimenti

Botti, Silvana

92

Terre d'asile, terre d'exil l'Europe tsigane  

E-Print Network [OSTI]

gran- de : « Egyptiens », « Gypsies » , « Gitanos » , « Gitans » ··· Auparavant, 7 * Ethnologue, (CNRS faubourgs des mêmes villes. Juxtaposant sans gêne les extrêmes que nous nous ap- pliquons à séparer, les

Boyer, Edmond

93

d'ordre : 9733 LABORATOIRE CHARLES FABRY  

E-Print Network [OSTI]

, Philippe Gran- gier. Ce fut un plaisir que d'avoir un encadrement d'une telle qualité. L'expérience de les électroniciens, Frédéric Moron et André Villing, sans lesquels les expériences présentées dans ce

Paris-Sud XI, Université de

94

LA CONTADURA DE LAS ALCABALAS DE PUEBLA: UN EPISODIO REFORMADOR AL PRINCIPIO DEL SIGLO XVIII  

E-Print Network [OSTI]

réformatrice menée dans l'administration chargée d'administrer l'impôt de l'alcabala dans la ville de Puebla au gran parte de la bibliografía?2 O al revés, ¿que relaciones 1 H. I. PRIESTLEY, José de Galvez: visitor

Boyer, Edmond

95

Universit Paris XII VAL DE MARNE  

E-Print Network [OSTI]

-29Jan2010 #12;Centre de Ressources �lectroniques sur les Villes CR� Cette thèse a été numérisée et mise que mes enfants : Laïla, Nourédine, Nadia et Sandy pour leur gran- de patience et leur compréhension

Paris-Sud XI, Université de

96

REDD (M.) et al. dir. --Aspects de la Romanisation dans l'Est de la Gaule. Glux-en-Glenne: Bibracte, 2011, p. 907-908 (Bibracte; 21). Patrice Mniel  

E-Print Network [OSTI]

diverses notions,mais avant la création des abattoirs dans la périphérie des villes,c'est avant tout le rentabilité,qui peut être un motif du développement d'animaux de gran

Paris-Sud XI, Université de

97

2#&3044#(56&7&$#($&4058"6&9&5:&1.#;<3&#:10.0:1<6. Michel FLIESS  

E-Print Network [OSTI]

, la dif culté de construire aujourd'hui de nouvelles infrastructures dans les villes et autour, la valeurs numériques de et aient même ordre de gran- deur, n'a pas a priori de valeur précise ; - !, qui

Boyer, Edmond

98

Exemplarit et savoir religieux : les rcits brefs dans Pastores de Beln de Lope de Vega Florence RAYNI  

E-Print Network [OSTI]

Susana, hija de Jelcías, de gran belleza y fiel a Dios, pues sus padres eran justos y la habían educado'action est située simplement par le nom de la ville : En aquellos días, vivía en Babilonia tandis

Paris-Sud XI, Université de

99

[The name of the series, for example/namnet p serien t.ex: Linkping University Medical Dissertation  

E-Print Network [OSTI]

gärna vill framföra min stora tacksamhet till. Professor Marie Clark Nelson, ISAK, för goda råd, förslag Harvardsystemet, Lisbeth Hägg, Inger Nyberg; IEI samt Anders Lindeborg och Dennis Netzell, LiU-Tryck) som grans

Zhao, Yuxiao

100

Mainake,XXXII(I)/2010/pp.205-228/ISSN:0212-078-X EL OPPIDUM BSTULO-PNICO DE LA SILLA DEL PAPA  

E-Print Network [OSTI]

yacimiento de la Silla del Papa (Tarifa, Cádiz) han revelado la exis- tencia de un núcleo urbano de gran communauté d'origine bastulo- punique qui fonda, sous Auguste, la ville de Baelo. Ce site de hauteur, occupé

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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

TRUMAN STATE UNIVERSITY 2013 SUMMER RESEARCH SYMPOSIUM  

E-Print Network [OSTI]

Foley Faculty Mentor: Kelly Walter The In-Between Lincoln: Republican Party Formation in Illinois, 1846 Gran and David Charles Goyette Finnegan's Wake: James Joyce and the Public Nathan Sandbothe Faculty Disorder David Schultz Faculty Mentor: Jeffrey Vittengl Self-Fashioning of James McNeill Whistler Mamie Cox

Gering, Jon C.

102

Identification of Shark Species Composition and Proportion in the Hong Kong Shark Fin Market Based  

E-Print Network [OSTI]

sensitivities. Based on information from traders and morphological inspection, we hypothesized matches between incorporated the concordance information and available market auction records for these categories: El floreciente y en gran parte no regulado comercio de aletas de tibur´on representa una de las m

103

Bestiario y metamorfosis en Santísima la nauyaca de Tomás Espinosa  

E-Print Network [OSTI]

un tesoro. ISABELITA—Algo maravilloso . . . Este es el cráneo de la María cuando tenía cinco años. JOSEFA—La calavera de la María en plena madurez. ISABELITA—Un fémur, un omóplato, una tibia de la gran María. JOSEFA—El húmero, el iliaco, el...

Montes-Huidobro, Matí as

1982-10-01T23:59:59.000Z

104

aging status challenges: Topics by E-print Network  

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

challengeS in UnderStanding earth'S dynamic SyStemS January 2009 Long-range Science PLan for SeiSmoLogy WorkSmoLogicaL granD chaLLengeS in unDerStanDing earth'S Dynamic SyStemS...

105

acute salinity challenges: Topics by E-print Network  

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

challengeS in UnderStanding earth'S dynamic SyStemS January 2009 Long-range Science PLan for SeiSmoLogy WorkSmoLogicaL granD chaLLengeS in unDerStanDing earth'S Dynamic SyStemS...

106

adult volunteers challenged: Topics by E-print Network  

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

challengeS in UnderStanding earth'S dynamic SyStemS January 2009 Long-range Science PLan for SeiSmoLogy WorkSmoLogicaL granD chaLLengeS in unDerStanDing earth'S Dynamic SyStemS...

107

Introduccion Herramientas Estudio Conclusiones Herramientas para el estudio de prestaciones en  

E-Print Network [OSTI]

´on paralela como secuencial (´algebra lineal) Inter´es en el cluster SOL Material ´util para el Grupo de Algebra Subprograms) Biblioteca de funciones que llevan a cabo operaciones b´asicas con matrices y vectores. Gran eficiencia y difusi´on. Est´andar de facto. LAPACK (Linear Algebra PACKage) Biblioteca que

Giménez, Domingo

108

ALGEBRA LINEAL Curso 2007-2008  

E-Print Network [OSTI]

´ALGEBRA LINEAL Curso 2007-2008 1 Introducci´on Se recogen aqu´i algunos comentarios que pueden ecuaciones lineales que hay que resolver. Gran parte de los ejercicios de ´Algebra Lineal se reducen, de una forma u otra, a sistemas de ecuaciones lineales. Es muy conveniente, y se pedir´a en los ex´amenes de la

Fernández Gallardo, Pablo

109

Clearing Debris from Land (Spanish)  

E-Print Network [OSTI]

nivelar) o en pantanos o ?reas bajas. ? Consulte a un especialista en recursos h?- dricos para determinar c?mo el botadero alterar? el camino del agua. Necesitar? una buld?zer o cualquier otro equipo de gran tama?o para realizar este trabajo ? Es...

McFarland, Mark L.

2007-10-08T23:59:59.000Z

110

LOS PINOS, 20 de mayo de 2014. Diversas intervenciones durante el evento Acceso Abierto  

E-Print Network [OSTI]

Sociedad del Conocimiento. Reformas y Adiciones a la Ley de Ciencia y Tecnología, que tuvo lugar en el General del Consejo Nacional de Ciencia y Tecnología, doctor Enrique Cabrero Mendoza. -DR. ENRIQUE CABRERO de gran satisfacción estar reunidos para dar cuenta de avances trascendentes en la agenda de ciencia

111

6:008:00 p.m. Pre-registration and  

E-Print Network [OSTI]

Wednesday February 2 6:00­8:00 p.m. Pre-registration and Welcome Reception GranTree Inn North 7th-CBE Research Assistant Professor 9:30­9:50 Biofilm challenges in the international space station Monsi Roman

Maxwell, Bruce D.

112

Envision your future in engineering  

E-Print Network [OSTI]

, or construction or to persist in your program As you read about a woman's experience of overcoming health issues and construction, and on the future of our society cannot be overstated With great pride, Heidi Sherick Assistant various national laboratories, including the Gran Sasso Laboratory. After traveling, we went to Princeton

Dyer, Bill

113

CMNE/CILAMCE 2007 Porto, 13 a 15 de Junho, 2007  

E-Print Network [OSTI]

para evaluar su impacto ambiental en ´areas de gran riqueza pesquera y marisquera. El modelo matem´on ambiental impide esta pr´actica desde hace d´ecadas. Esta prohibici´on podr´ia haber provocado el aumento de

Colominas, Ignasi

114

Por qu se usa? Segundo o informe "Bottled Water: Understanding a Social  

E-Print Network [OSTI]

fabricación. O transporte, por barco, estrada...tamén ten un gran impacto ambiental. A isto, hai que sumarlle e escolle que impacto queres ter sobre o Medio Ambiente A auga embotellada é máis saudábel, transporte, publicidade, intermediarios... Para o medio ambiente, as consecuencias son moi importantes. Os

Fraguela, Basilio B.

115

Hag(e)ografía: Propaganda ideológica y política geográfica en los discursos hagiográficos peninsulares. La construcción de la nación española (siglos XIII a XVII)  

E-Print Network [OSTI]

de la gran crisis política y económica que azotaba a la nación a causa de la mala gestión de Felipe III, España llegaba a su máxima expansión territorial, y por otro, a pesar de los nefastos resultados que la expulsión de los moriscos y la...

Garcia Otero, Maria Jose

2012-01-01T23:59:59.000Z

116

VVas de acceso abierto para laas de acceso abierto para la producciproduccin cientn cientfica CSICfica CSIC  

E-Print Network [OSTI]

, BMC, Copernicus, Hindawi, MDPI..pero a gran distancia Primeros estudios del aumento de impacto de los vigor en CSIC Los sujetos a mandatos (unos 80, un 20%) son sobre todo de las áreas de Medio ambiente Criterios a favor: Factor de impacto, calidad de peer- review, mayor visibilidad, rapidez de publicación

117

THE STATE OF ASTRONOMY IN MEXICO I. Aretxaga  

E-Print Network [OSTI]

into the framework of the basic elements and forces of nature, such as the proposal that dark matter and dark energy-mm Infrastructure 3.3 The Gran Telescopio Canarias (GTC) 3.4 The High Altitude Water Cherenkov Experiment (Hawc) 3

Aretxaga, Itziar

118

Bol. Soc. Esp. Mat. Apl. no 0 (0000), 126  

E-Print Network [OSTI]

, los efectos de la rotaci´on terrestre, la tensi´on superficial debida al viento y la fricci´on con el de extra~nar, por tanto, que exista en la actualidad una gran cantidad y diversidad de modelos

Politècnica de Catalunya, Universitat

119

ColAborACiones colaboraciones  

E-Print Network [OSTI]

sostenible, Rio+20, se ha puesto en marcha un programa tripartito entre África, Brasil y Francia sobre la Gran Muralla Verde (APGMV), el Centro Gestión y Estudios Estratégicos de Brasil (CGEE) y el Consejo en Brasil y Camerún. También existe una mutualizaciónconlosmiembrosfundadoresdelaAIRD,através de

120

Cimbelina en 1900 y pico: Las tácticas de la (re)escritura en el teatro de Alfonsina Storni  

E-Print Network [OSTI]

, José? Su cabeza es una obra de arte. JOSÉ: Un gran cortador, María Elena: Mariano... MARIA ELENA: ¿Y quién le da masajes? Su tez es un racimo de uvas doradas... JOSÉ: Mi masajista es el oleaje, María Elena... (191) El grado extremo de esta irónica...

Prieto, Julio

1998-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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

Peter Gruber/PS, 2000-05-08Possible neutrino factory / detector locations 1 Possible neutrino factory  

E-Print Network [OSTI]

2901 Arlit Carlsbad 131.8 71.0% 179.6 7328 2768 Carlsbad GranSasso 127.4 69.3% 170.7 2768 6506 Arlit Carlsbad 113.2 64.5% 164.9 2892 7926 Arlit Sudbury 111.7 64.1% 154.6 2969 6223 CERN #12;Peter Gruber

McDonald, Kirk

122

ORINOCO Framework: Publicacion, Composicion y Ejecucion de SERVICIOS WEB en  

E-Print Network [OSTI]

Keysis Kiss1 , Eduardo Blanco2 , and Yudith Cardinale2 1 Universidad Central de Venezuela, Facultad de Ciencias,Escuela de Computaci´on Apartado 1010, Caracas, Venezuela {kkiss}@gmail.com 2 Universidad Sim-A, Venezuela {eduardo,yudith}@ldc.usb.ve Abstract La gran cantidad de servicios existentes en

Cardinale Villarreal, Yudith C.

123

Arnaldo Calveyra, un dramaturgo argentino en Francia  

E-Print Network [OSTI]

. Así fue . . . Teatro, yo casi no había visto teatro. . . . ¿Qué te motivó, entonces, para escribir teatro? Bueno, yo tuve una gran experiencia teatral ... y eso fue en Buenos Aires ... y tiene que ver Lavelli en esto. Fui a ver La gaviota de Chejov... individuales enormes. Tú conociste a un director hispanoamericano de nacionalidad peruana que se llama Rodríguez Vigouroux? Lo encontré alguna vez. El trabajaba en el Theatre de la Ville. Hizo una obra de Peter Shaffer sobre el encuentro entre Pizarro y...

Obregó n, Osvaldo

1984-10-01T23:59:59.000Z

124

Valence hroque : premiers pomes piques espagnols de la fin du rgne de Charles-Quint  

E-Print Network [OSTI]

(1504-1517), consacra à la ville qui l'accueillait un poème panégyrique, d'abord en latin (Oratio heroico en loor de la ciudad de Valencia, il dégage cinq caractéristiques glorieuses de la ville, qui de Oro, Las Palmas de Gran Canaria : Academia Canaria de la Historia, 2010, p. 189-226. hal-00684286

Boyer, Edmond

125

Valence hroque : premiers pomes piques espagnols de la fin du rgne de Charles-Quint (Nicols Espinosa et Francisco Garrido de Villena, 1555)  

E-Print Network [OSTI]

XVIè siècle (1504-1517), consacra à la ville qui l'accueillait un poème panégyrique, d'abord en latin Romance heroico en loor de la ciudad de Valencia, il dégage cinq caractéristiques glorieuses de la ville, Andrés Sánchez Robayna (ed.), Las Palmas de Gran Canaria : Academia Canaria de la Historia, 2010, p. 189

Paris-Sud XI, Université de

126

De Tolde Zamora, l'errance des reliques de saint Ildephonse au Moyen ge  

E-Print Network [OSTI]

reliques de saint Ildephonse dans la ville de Zamora. Mais que pouvait bien faire à cet endroit reculé la hispánicos más ilustres en un rincón tan olvidado? Lo cierto es que el descubrimiento causó una gran la ville de León, l'urbs regia du xie siècle, et à la transformer en un

Boyer, Edmond

127

A Pleasure and a Source: The Publications of the Teatro Clásico de México  

E-Print Network [OSTI]

Cid interpreted by Ignacio López Tarso, Ofelia Guilmain, and Amparo Ville gas and, on the other side, Coplas with López Tarso and Amparo Villegas. Summary of the "Actualidad teatral en México, D.F." 1 Septiembre 1960 "El destino del teatro... by the Oficina de Espectácu los and the unions in Mexico. "La temporada teatral de Madrid 1965- 1966" by José Téllez Moreno. Septiembre 1966, No. 9 "Teatro subvencionado en México," "La temporada teatral 1965- 1966 en París," and an obituary, "Un gran...

Dial, Eleanore Maxwell

1987-10-01T23:59:59.000Z

128

Insecticidal control evaluation of the turkey chigger, Neoschongastia americana (Hirst  

E-Print Network [OSTI]

control for the 4 week period. The summery of Dursban test results published by Kunz (1968) led personnel at the Livestock Insects Investigations Laboratory at Kerr- ville, Texas, to undertake residue studies of Dursban and its oxygen analogue (diethyl... that no large downgrading lesions were observed for 7 weeks after the initial treatment. Dursban (17 gran- ule) applied at six pounds active ingredient per acre was extremely effective in controlling the turkey chigger infestations. Even though several...

Carlton, Maurice David

1973-01-01T23:59:59.000Z

129

I Muestra Internacioanl de Teatro--Montevideo 1984  

E-Print Network [OSTI]

aporte de los argentinos fue variado: Norma Aleandro y Cipe Lincovsky se lucieron en espectáculos unipersonales; Príncipe azul de Eugenio Griffero y Examen cívico de Franco Franchi representaron a Teatro Abierto con gran repercusión; La bella y la... actores, con Luisina Brando y Enrique Liporace. Un elenco francés, del Ville Neuve D'Ascq—Lille—presentó Entre Chien et Loup de D. Lemahieu, la historia de una pareja de obreros después de una larga convivencia matrimonial, en un estilo naturalista con...

Seibel, Beatriz

1984-10-01T23:59:59.000Z

130

ENERGIA DE L'OCE`A Energia de les ones  

E-Print Network [OSTI]

. #12;ENERGIA T`ERMICA OCE`ANICA El mar acumula energia solar a gran escala (1/4 de l'energia que arrivaENERGIA DE L'OCE`A · Energia de les ones · Energia de les marees · Energia t`ermica oce`anic · Energia de les corrents oce`aniques #12;ENERGIA DE LES ONES En algunes zones 40-70 kW/m Aig¨ues profundes

Batiste, Oriol

131

Study of solar and other unknown anti-neutrino fluxes with Borexino at LNGS  

E-Print Network [OSTI]

We report on the search for anti-neutrinos of yet unknown origin with the Borexino detector at the Laboratori Nazionali del Gran Sasso. In particular, a hypothetical anti-neutrino flux from the Sun is investigated. Anti-neutrinos are detected through the neutron inverse $\\beta$ decay reaction in a large liquid organic scintillator target. We set a new upper limit for a hypothetical solar $\\bar{\

G. Bellini; Borexino Collaboration

2010-09-30T23:59:59.000Z

132

History and invention in the structure of Terra nostra by Carlos Fuentes  

E-Print Network [OSTI]

humanos, instituciones religiosas y gubernamentales, y es tambien una critica literaria, politica, y social. Asimismo es una obra extraordinariamente cultural por incluir conocimientos extraidos de obras tanto culturales coma literarias, abarcando gran..., sencillamente, todo: una suma de los mitos humanos, una reescritura de la historia, una interpretacion de Espana, una reflexion americana, un ensayo disidente sabre la funcion de la religion, el arte y la literatura en el destino humano, una propuesta...

Valdez, Irma O

1991-01-01T23:59:59.000Z

133

Comparacio?n cronolo?gica y generacional de la narrativa femenino-feminista del siglo XX: Bombal, Bullrich, y Poniatowska  

E-Print Network [OSTI]

lenguaje mucho mhs libre y mhs directamente encaminado a criticar y hasta ridiculizar a la sociedad. Finalmente, Poniatowska, corno escritora precursora del "pos-boom, " tambien prolifica, representa las preocupaciones de la mujer de bajos recursos... Hispanoamhrica pash, camo dicen Edenia Guillermo y Juana A. HernAndez, de "lo inmediato y telurico. . . a lo filosbfico y trascendente, a lo amplia- mente universal y humano" (13). Por otro lado, junto a estas inquietudes, se empez6 a dar un gran...

Negy, Alma Margarita Alarco?n

1990-01-01T23:59:59.000Z

134

Rare, Threatened and Endangered Species of the Rio Grande/ Rio Bravo Basin: A Bibliography  

E-Print Network [OSTI]

sur de Texas y de México se considera uno de los "últimos grandes hábitats en Norteamérica debido a sus recursos biológicos únicos (Fulbright y Bryant 2002). A través del tiempo, las plantas y los animales nativos o autóctonos de las regiones.../Río Bravo ha mantenido un valor biológico significativo , gran parte de esta ha sido altamente degradada al compararse con su condición de hace 50 a 100 años (Ricketts et al 1999). Los impactos humanos producidos por la desviación del agua, los...

Wilkins, Neal; Gil, Karine

135

Scatter Search aplicado aplicada al problema de la minimizacion del profile de matrices y grafos  

E-Print Network [OSTI]

la estrategia Path Relinking como m´etodo base para la genera- ci´on de nuevas soluciones mediante´ali- sis num´erico basadas en la manipulaci´on de matrices de gran tama~no. Fue propuesto a comienzos de los 70 pero en el estado del arte no se encuentra ning´un m´etodo eficiente para la resoluci´on del

Duarte, Abraham

136

Extraccion de lineas melodicas a partir de imagenes de partituras musicales  

E-Print Network [OSTI]

proporcionados por el usuario. El m´etodo elegido para el an´alisis se ha derivado de diferentes propuestas sea necesario. Un gran n´umero de m´etodos se opta por identificar las l´ineas, empleando la posteriormente eliminarlas. Otro m´etodo consiste en el an´alisis de la proyecci´on horizontal de la imagen. El

Pantrigo Fernández, Juan José

137

construyendo dossier de prensa  

E-Print Network [OSTI]

construyendo ciencia 365 días dossier de prensa #12;construyendo ciencia 365 días1. 365 días construyendo ciencia 2. Un gigante en marcha 3.Primera ciencia con GTC 4.Eficiencia en la observación 5. GTC capacidad empresarial, tecnológica y científica para acometer y desarrollar proyectos de "gran ciencia". Se

138

IV Festival Controamericano de Teatro: El Salvador 96  

E-Print Network [OSTI]

FALL 1997 151 IV Festival Centroamericano de Teatro: El Salvador 96 Beatriz J. Rizk En la ciudad de San Salvador, la llamada apropiadamente Valle de las Hamacas por sus temblores de tierra que parecen formar parte de las actividades cotidianas... Honduras, Costa Rica, El Salvador y Guatemala, además de contar con la participación de Cuba, Argentina, Estados Unidos y México. Para la ocasión se utilizaron tres espacios de manera simultánea: la Gran Sala y la Pequeña Sala del fastuoso Teatro...

Rizk, Beatriz J.

1997-10-01T23:59:59.000Z

139

50 años de teatro en la Universidad Católica: Crear es andar detrás de la verdad  

E-Print Network [OSTI]

en diversos ámbitos de la vida nacional y mundial, este sistema de producción entró en crisis. El actor y director Fernando Colina impulsó un movimiento renovador, destinado a remecer la concepción y las metodologías de la puesta en escena. Quiso... FALL 1995 49 buen ejemplo de la capacidad de gestión cultural desarrollada por el Teatro, capaz de aunar los recursos financieros, las voluntades y la capacidad de producción de una creación de esta envergadura. Por cierto, el gran trabajo realizado...

Hurtado, Marí a de la Luz

1995-10-01T23:59:59.000Z

140

Festivales de teatro en America.  

E-Print Network [OSTI]

(CENTRO LIBRE DE EXPERIMENTA CIÓN TEATRAL Y ARTÍSTICA), de México: Azotea Fantoche/Laboratorio Katarsis La Calle Mascarones Nopalera Zopilote Vale mencionar en párrafo aparte el TEATRO AMBULANTE DE PUEBLA, MEXICO que causó gran impacto en el..., para una obra de tan atrevida concepción, hacían falta también nuevos actores que Santana aún no ha logrado formar. La actuación—dedicada y voluntariosa—de 40 integrantes del grupo de la Universidad del Zulia no logró proyectar todo el impacto de la...

Castillo, Susana D.

1974-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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.


141

Una recapitulación de la renovación teatral en Hispanoamerica.  

E-Print Network [OSTI]

FALL 1974 57 Una recapitulación de la renovación teatral en Hispanoamérica* ERMINIO G. NEGLIA Por su llamativa actualidad y su abundancia, la producción dramática hispano americana de los últimos treinta años ha opacado en gran parte el aporte... norteameri cano, sino también de los otros géneros literarios de Hispanoamérica. Desde 1940, se ha venido observando la continuación de este proceso de modernización, al integrarse el teatro cada vez más con las nuevas modalidades de la dramaturgia...

Neglia, Erminio G.

1974-10-01T23:59:59.000Z

142

The bioarchaeology of Blue Bayou: a late prehistoric mortuary site from Victoria county, Texas  

E-Print Network [OSTI]

THE BIOARCHAEOLOGY OF BLUE BAYOU: A LATE PREHISTORIC MORTUARY SITE PROM VICTORIA COUNTYr TEXAS A Thesis ANTHONY GEAN COMUZZ1E Suhmitted to the Graduate College of Texas AAM University in partial fulfillment of the requirements for the degree... of MASTER OF ARTS May 1987 Major Subject: Anthropology THE BIOARCHAEOLOGY OF BLUE BAYOU: A LATE PREHISTORIC MORTUARY SITE FROM VICTORIA COUNTY, TEXAS A Thesis ANTHONY GRAN COMUZZIE Approved as to style and content by: D. Gentry Steele (Chairman cf...

Comuzzie, Anthony Gean

1987-01-01T23:59:59.000Z

143

El IV Festival de Manizales.  

E-Print Network [OSTI]

nutridos aplausos fue Venezuela tuya, texto de Luis Britto García, llevado a la escena por el grupo "Rajatabla" del Ateneo de Caracas, con la dirección de Carlos Giménez. Fue un "show" exube rante, de gran vistosidad, con elementos de humor, sátira y... se mostró Una escena de la obra de Luis Britto García, Venezuela tuya, puesta en escena por el grupo "Rajatabla" del Ateneo de Caracas. Dirigió Carlos Giménez. (Manizales, 1971) 10 LATIN AMERICAN THEATRE REVIEW en el uso que hicieron durante la...

Luzuriaga, Gerardo

1971-10-01T23:59:59.000Z

144

A inevitabilidade de um sismo em Lisboa, s no se sabendo  

E-Print Network [OSTI]

ALTO RISCO SÍSMICO EM LISBOA · A inevitabilidade de um sismo em Lisboa, só não se sabendo a data.balasteiro@sol.pt O SOL fez uma ronda pela capital, acompanhado por especialistas: em caso de sismo, muitos hospitais prô- i ximo sismo de gran- I des dimensões em I Lisboa - uma certe- z a científica, segun- do os

Instituto de Sistemas e Robotica

145

PRIMER CONGRS NACIONAL 2 Circular (pre-programa)  

E-Print Network [OSTI]

PRIMER CONGR�S NACIONAL 2ª Circular (pre-programa) EL PAISATGE DELS RIURAUS: ARQUITECTURA, HER�NCIA dels riuraus: arquitectura, herència i reptes. Tot partint d'aquestes premisses el congrés pretén rebre a quatre grans àmbits: 1. ETNOGR�FIC-HIST�RIC 2. ARQUITECTURA I PAISATGE RURAL 3. TURÍSTIC I TERRITORIAL 4

Escolano, Francisco

146

The Usual and Some Better Shows: Peruvian Theatre in 1981  

E-Print Network [OSTI]

of certain theaters traditionally devoted to the 'classical' genre" (El observador [inter alia], Lima, 12/29/81). The AFP-survey men tions as the most interesting productions Ultimo round by Venezuelan Rodolfo Santana, La señorita de Tacna by Peruvian... of the group and the playwright J. Rivera Saavedra; (4) celebrating the International Year of the Physically Handicapped, Osvaldo Cattone gave us Mark Medoffs Hijos de un Dios menor [Teatro Marsano]; (5) El gran des chave [Teatro Larco; cf. supra]." When...

Luchting, Wolfgang A.

1982-04-01T23:59:59.000Z

147

GRANULATION IN RED GIANTS: OBSERVATIONS BY THE KEPLER MISSION AND THREE-DIMENSIONAL CONVECTION SIMULATIONS  

SciTech Connect (OSTI)

The granulation pattern that we observe on the surface of the Sun is due to hot plasma rising to the photosphere where it cools down and descends back into the interior at the edges of granules. This is the visible manifestation of convection taking place in the outer part of the solar convection zone. Because red giants have deeper convection zones than the Sun, we cannot a priori assume that their granulation is a scaled version of solar granulation. Until now, neither observations nor one-dimensional analytical convection models could put constraints on granulation in red giants. With asteroseismology, this study can now be performed. We analyze {approx}1000 red giants that have been observed by Kepler during 13 months. We fit the power spectra with Harvey-like profiles to retrieve the characteristics of the granulation (timescale {tau}{sub gran} and power P{sub gran}). We search for a correlation between these parameters and the global acoustic-mode parameter (the position of maximum power, {nu}{sub max}) as well as with stellar parameters (mass, radius, surface gravity (log g), and effective temperature (T{sub eff})). We show that {tau}{sub eff}{proportional_to}{nu}{sup -0.89}{sub max} and P{sub gran}{proportional_to}{nu}{sup -1.90}{sub max}, which is consistent with the theoretical predictions. We find that the granulation timescales of stars that belong to the red clump have similar values while the timescales of stars in the red giant branch are spread in a wider range. Finally, we show that realistic three-dimensional simulations of the surface convection in stars, spanning the (T{sub eff}, log g) range of our sample of red giants, match the Kepler observations well in terms of trends.

Mathur, S. [High Altitude Observatory, NCAR, P.O. Box 3000, Boulder, CO 80307 (United States); Hekker, S. [Astronomical Institute 'Anton Pannekoek', University of Amsterdam, P.O. Box 94249, 1090 GE Amsterdam (Netherlands); Trampedach, R. [JILA, University of Colorado and National Institute of Standards and Technology, 440 UCB, Boulder, CO 80309 (United States); Ballot, J. [Institut de Recherche en Astrophysique et Planetologie, CNRS, 14 avenue E. Belin, 31400 Toulouse (France); Kallinger, T. [Institute for Astronomy (IfA), University of Vienna, Tuerkenschanzstrasse 17, 1180 Vienna (Austria); Buzasi, D. [Eureka Scientific, 2452 Delmer Street Suite 100, Oakland, CA 94602-3017 (United States); Garcia, R. A. [Laboratoire AIM, CEA/DSM-CNRS-Universite Paris Diderot-IRFU/SAp, 91191 Gif-sur-Yvette Cedex (France); Huber, D.; Bedding, T. R.; Stello, D. [Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006 (Australia); Jimenez, A.; Regulo, C. [Dpto de Astrofisica, Universidad de La Laguna, 38206, Tenerife (Spain); Mosser, B. [LESIA, UMR8109, Universite Pierre et Marie Curie, Universite Denis Diderot, Obs. de Paris, 92195 Meudon Cedex (France); Elsworth, Y.; Chaplin, W. J.; Hale, S. J. [School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); De Ridder, J. [Instituut voor Sterrenkunde, K.U. Leuven, Celestijnenlaan 200D, 3001 Leuven (Belgium); Kinemuchi, K. [Bay Area Environmental Research Inst./NASA Ames Research Center, Moffett Field, CA 94035 (United States); Kjeldsen, H. [Danish AsteroSeismology Centre, Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark); Mullally, F. [SETI Institute/NASA Ames Research Center, Moffett Field, CA 94035 (United States)

2011-11-10T23:59:59.000Z

148

The Coldest Cubic Meter in the Known Universe  

E-Print Network [OSTI]

CUORE is a 741 kg array of TeO2 bolometers that will search for the neutrinoless double beta decay of 130Te. The detector is being constructed at the Laboratori Nazionali del Gran Sasso in Italy, where it will begin taking data in 2015. The CUORE cryostat will cool several metric tonnes of material to below 1 K and the CUORE detector itself will operate at a typical temperature of 10 mK. At this temperature, the CUORE detector will be the coldest contiguous cubic meter in the known Universe.

Jonathan Ouellet

2014-10-14T23:59:59.000Z

149

A nutritional evaluation of sterile and fertile lines of seven sorghum varieties  

E-Print Network [OSTI]

sorghum varie- ties were grown: CK 60, Martin, Redlan (grain varieties); Texioca 63wx, CK 60wx (waxy endosperm varieties); Atlas and Neb. 4692 (for- age sorghums). They were harvested at the following five stages of maturity: boot stage, midbloom... & . 05) green matter (GM) and DM than grain or waxy varieties due to greater stem yield and greater leaf yield (P - . 05). Forage varieties were lower in DM due to in- creased proportion of stems and decreased proportion of gra~n. Atlas yielded...

Hart, Steven P

1977-01-01T23:59:59.000Z

150

The influence of ammonium nitrogen and phosphorus on the soil microflora as related to the seedling disease complex of cotton  

E-Print Network [OSTI]

interesting results vhen Granosan vas used as a soil- sterilising agent for controlling damping-off of pine seedlings caused by R. solani and ~thrum ultissns Trow. In seven experiments, when Gran- osan was applied to the seed bed in a 0. 3 per cent aqueous... alfalfa) added, 20 Table 2. The influence of asssonium nitrogen and organic matter on post-emargence damping-off of cotton seedlings in Bien- ville soil. Treatments Planting depth Position to nitrogen Mean Shallov Deep Near NO + O. M. N + O. M...

Morales-Bermudez, Marciano

1956-01-01T23:59:59.000Z

151

IV Seminario de Dramaturgia Puertorriqueña  

E-Print Network [OSTI]

Fernández de Lewis) del Primer Seminario de Dramaturgia celebrado en Puerto Rico para el año de 1961. Entre los deponentes, se contó con la participación de Frank Dauster de la Universidad de Rutgers, Bonnie Reynolds de la Universidad de Louis ville y el... cando la verdad del arte, los problemas políticos y sociales del país. Se enfatizo la necesidad de mayor apoyo a estos nuevos dramaturgos para que la gran cantidad de obras que producen puedan ser represen tadas y puedan llegar a las masas del pueblo...

Ramos Perea, Roberto

1987-10-01T23:59:59.000Z

152

London Gazette  

E-Print Network [OSTI]

Majesté[2 KF] des marques de sa reconnoissance, à cause des grans Secours qu'Elle a, généreusemant, envoiez en la ville de Candie[3 CANDIE] sur la Demande que ce Pontife[2 P1] lui en a faite. *b Le même Courier ajoûte que ce Saint Pere[2 P1] a... ], qui demeure environ à 15 Lieuës de céte ville, par lequel Sa Majesté[2 KPL] lui mande d'y venir en diligence pour expédier ses Lettres Circulaires addressantes à la Noblesse avec ordre de se mettre sous les armes pour la deffarisé du Roïaume, le Roi[2...

Ries, Paul

2006-04-03T23:59:59.000Z

153

Ogmios 13  

E-Print Network [OSTI]

Trees shows that it has changed little in the last 175 at least. OGMIOS Newsletter Millennium Issue : 1999-2000 E osml0S -e. 11 I ••••• --e. IIII aje , e vill .G. t, . . it . rm ue: Newsletter of Foundation for Endangered Languages... the meeting closed. The Foundat ion 's Gran ts Policy, b y C h r i s t o p h e r Moseley, T r e a s u r e r It is now three years since the Foundation for Endangered Languages found itself in a financial position where it kould start offering modest...

Ostler, Nicholas D M

2000-01-01T23:59:59.000Z

154

Forage production of coastal Bermudagrass, Cynodon dactylon (L.) Pers., in combination with certain legumes  

E-Print Network [OSTI]

if the legumes were grmm in media which permitted contaminating orga~9sms first to %econ pose the excreted ani~o nitrogen? Vlrtanon and Laine stated that Mhen the ratio of legumes to nonlogumes ex- ceeds 1&1~ thc legume vill suffer from nitrogen deficien- cy... vere dried in an electr1c oven at 70oC for 24 hours and then reweighedx and the yield of air-dry forage was calculated, The four replications of each treatment were conposited~ and an analysis fox' total ni trogen vas made on l 4-gran sanplcs...

Usrey, Edward Lee

1951-01-01T23:59:59.000Z

155

An investigation of laboratory and field compaction of a swelling clay  

E-Print Network [OSTI]

allowed to bodoao tleeeog)Qg eeyazat?4 whee agitated thoreagblp vill reasia Sa ye for ~ aaaber ef pears. D aight bo said that sm ef tbe seabors ef tho gastorvood shale wore origisallp asde ay of oeQo141al or soar oollol45al olaf, ? Tho stratigraphy' ef... of the results free several epooinsns were aooonplishcd by use of ratios of smcple to speoinen density. The oonbinsd scatter dio gran of results showed definite trends of density variations as nsy be observed fran pigure 5. Frequenoy distribution curves...

Williams, Andrew Leroy

1951-01-01T23:59:59.000Z

156

Skogen r ttare, grvre och mer lvrik Virkesfrrdet i Sveriges skogar fort-  

E-Print Network [OSTI]

perioden medan för- rådet av tall och gran ökat med 17 respektive 7 procent. Samtidigt har arealen för virkesförrådet,fortsätter Göran Kempe. Bättre tillgång till statistiken på nätet Den som vill göra egna sökningar. Arbetsnamnet är Tax- webb. ­ Vi vill öka tillgängligheten av vår skogliga statistik.Tanken är att Taxwebb

157

Uranium in the Oatman Creek granite of Central Texas and its economic potential  

E-Print Network [OSTI]

, however, the need to explore for new materials containing uranium will incr ease as the high grade sedimentary uranium deposits become depleted. A logical place to begin this search lies with the source rock for many of the known sedimentary uranium... potential uranium source. Th1s study focuses on an 80 acre outcrop of the Oatman Creek granite known as Bear Mountain, in Gillespie County, Texas. The gran1te is a medium-grained, gray to pink rock. Nodal analysis indicates the composit1on 1s 35. 5...

Conrad, Curtis Paul

1982-01-01T23:59:59.000Z

158

The bipolar diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grun) J2rg.: morphology and autecology of disjunct populations  

E-Print Network [OSTI]

antarctica Karsten Frenguellip 1960 Amh~ ~k'll '' . t' lt (G . )Cl. ~GA E *I d' Ot p Pd ' h d . El I G'' Thalassiosira heshing (Grun. ) Gran A~t*hl hk''Eh Triceratium arcticum Brightwell Rhizosolenia alata f, inermis (Castr. ) Rust. Hasle, 1976... Thalassiosira antarctica Comber P ' El ' I' (G . ) Jd E. If't* h' ~ uf' d d(G . ) E I 10 Expedition (Table 1). Neither author speculated on the origin of the disjunct populations. Hasle and Heimdal (1968) added Thalassiosira antarctica Comber to the list...

Villareal, Tracy Alan

1981-01-01T23:59:59.000Z

159

Entrevista con Sabina Berman  

E-Print Network [OSTI]

en México D.F. Quisiera preguntarte acerca de los cambios en Muerte súbita. Acabo de ver la obra y no se parece del todo a la obra publicada en Berman. Me pregunto el por qué de los cambios. Por ejemplo, ahora hay un beso entre los dos hombres... publicarlas. ¿ Te arrepientes de haber publicado una obra que sigue en proceso de desarrollo? No. Yo de niña quería ser pintora. Mi mamá tiene una gran cultura sobre pintura y tenía muchos amigos pintores. A mí me encantaban los talleres de los pintores y...

Hind, Emily

2000-04-01T23:59:59.000Z

160

ICARUS and Status of Liquid Argon Technology  

E-Print Network [OSTI]

ICARUS is the largest liquid argon TPC detector ever built (~600 ton LAr mass). It operates underground at the LNGS laboratory in Gran Sasso. It has been smoothly running since summer 2010, collecting data with the CNGS beam and with cosmics. Liquid argon TPCs are really "electronic bubble chamber" providing a completely uniform imaging and calorimetry with unprecedented accuracy on massive volumes. ICARUS is internationally considered as a milestone towards the realization of the next generation of massive detectors (~tens of ktons) for neutrino and rare event physics. Results will be presented on the data collected during 2010 with the detector at LNGS.

Dorota Stefan

2011-10-07T23:59:59.000Z

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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

Measurement of cosmic muon charge ratio with the Large Volume Detector  

E-Print Network [OSTI]

The charge ratio ${k \\equiv \\mu^+/\\mu^-}$ for atmospheric muons has been measured using Large Volume Detector (LVD) in the INFN Gran Sasso National Laboratory, Italy (minimal depth is 3000 m w.e.). To reach this depth muons should have the energy at the sea level greater than 1.3 TeV. The muon charge ratio was defined using the number of the decays of stopping positive muons in the LVD iron structure and the decays of positive and negative muons in scintillator. We have obtained the value of the muon charge ratio ${k}$ ${= 1.26 \\pm 0.04(stat) \\pm 0.11(sys)}$.

N. Yu. Agafonova; M. Aglietta; P. Antonioli; G. Bari; R. Bertoni; V. V. Boyarkin; E. Bressan; G. Bruno; V. L. Dadykin; E. A. Dobrynina; R. I. Enikeev; W. Fulgione; P. Galeotti; M. Garbini; P. L. Ghia; P. Giusti; E. Kemp; A. S. Malgin; B. Miguez; A. Molinario; R. Persiani; I. A. Pless; V. G. Ryasny; O. G. Ryazhskaya; O. Saavedra; G. Sartorelli; M. Selvi; G. C. Trinchero; C. Vigorito; V. F. Yakushev; A. Zichichi

2015-02-14T23:59:59.000Z

162

Double beta decay of ^{64,70}Zn and ^{180,186}W isotopes  

E-Print Network [OSTI]

The results of the experimental investigations of double beta processes in Zinc and Tungsten isotopes with the help of middle volume (117 g, 168 g and 699 g) low-background ZnWO_4 crystal scintillators are presented. The experiment was carried out in the low-background "DAMA/R&D" set-up at the Gran Sasso National Laboratories of the INFN (Italy) at a depth of \\approx3600 m w.e. The total measurement time exceeds ten thousand hours. New improved half-life limits on double electron capture and electron capture with positron emission in ^{64}Zn have been set: T^{2\

D. V. Poda

2011-12-05T23:59:59.000Z

163

Why Range Forage Quality Changes (Spanish)  

E-Print Network [OSTI]

?n Experimental Agr?cola de Texas, El Sistema Universitario Texas A&M. E-99S 7-01 animales seleccionan ciertas partes de las plantas, el an?lisis de las plantas completas en general no es un buen indicador de la calidad de la dieta de los animales. Edad de las...El ganado en pastoreo y la fauna silvestre tienen acceso a una gran diversidad de plantas forrajeras, las cuales var?an en calidad nutri- cional. Los animales obtienen de estas plantas los nutrientes (prote?na, energ?a, vitaminas y min- erales) que...

Lyons, Robert K.; Machen, Richard V.; Forbes, T. D. A.

2001-09-10T23:59:59.000Z

164

Teatro en Buenos Aires, julio del 2000  

E-Print Network [OSTI]

sostenidas por el gobierno cobran una admisión cuyo valor ronda el de una entrada de cine, y muchas veces con la opción de un día a mitad de precio. Claro que la contrapartida es un sistema que apenas se sostiene: durante el mes de julio, los actores de... representar han logrado con El amateur un espectáculo de gran calidad. El escenario vacío del comienzo se irá poblando con el transcurso de la obra pero no más que de una bicicleta profesional y un soporte fijo sobre el que el ciclista creará la ilusión de...

Persino, Marí a Silvina

2001-10-01T23:59:59.000Z

165

César Rengifo y el teatro venezolano  

E-Print Network [OSTI]

local, con un marcado afán por encontrar una forma expresiva que lo identifique con lo nacional. VI. Teatro criollo Descendiente directo del teatro costumbrista, se ubica en las primeras cuatro décadas del presente siglo. Recibe la influencia de los... muralismo" (T. VI. p. 450). Llegó al país con la intención de sacar el arte del museo y dirigirlo al pueblo, esto es, de la pintura de salón pasar al mural. Pero las condiciones no se dieron hasta 1954-1955, cuando realizó su gran mural-mosaico Amalivaca...

Paternina Rí os, Zoila

1999-04-01T23:59:59.000Z

166

Measurement of low radioactivity background in a high voltage cable by high resolution inductively coupled plasma mass spectrometry  

SciTech Connect (OSTI)

The measurement of naturally occurring low level radioactivity background in a high voltage (HV) cable by high resolution inductively coupled plasma mass spectrometry (HR ICP MS) is presented in this work. The measurements were performed at the Chemistry Service of the Gran Sasso National Laboratory. The contributions to the radioactive background coming from the different components of the heterogeneous material were separated. Based on the mass fraction of the cable, the whole contamination was calculated. The HR ICP MS results were cross-checked by gamma ray spectroscopy analysis that was performed at the low background facility STELLA (Sub Terranean Low Level Assay) of the LNGS underground lab using HPGe detectors.

Vacri, M. L. di; Nisi, S.; Balata, M. [Gran Sasso National Laboratory, Chemistry Service, SS 17bis km 18.910, 67100 Assergi (Aq) (Italy)] [Gran Sasso National Laboratory, Chemistry Service, SS 17bis km 18.910, 67100 Assergi (Aq) (Italy)

2013-08-08T23:59:59.000Z

167

The Coldest Cubic Meter in the Known Universe  

E-Print Network [OSTI]

CUORE is a 741 kg array of TeO2 bolometers that will search for the neutrinoless double beta decay of 130Te. The detector is being constructed at the Laboratori Nazionali del Gran Sasso in Italy, where it will begin taking data in 2015. The CUORE cryostat will cool several metric tonnes of material to below 1 K and the CUORE detector itself will operate at a typical temperature of 10 mK. At this temperature, the CUORE detector will be the coldest contiguous cubic meter in the known Universe.

Ouellet, Jonathan

2014-01-01T23:59:59.000Z

168

Drinking Water Problems: Perchlorate (Spanish)  

E-Print Network [OSTI]

usan a gran escala como un componente de los infladores de bolsas de aire para autom?viles. El perclorato fue descubierto en varios sitios de produc- ci?n y en fuentes de agua de pozo y de agua potable en abril, 1997 gracias al desarrollo de un m... Asociada e Ingeniera Agr?cola de Extensi?n, Bruce J. Lesikar, Profesor e Ingeniero Agr?cola de Extensi?n, Extensi?n Cooperativa de Texas, El Sistema Universitario Texas A&M L-5468S 8/07 Figura 1. Distribuci?n de las detecciones de perclorato en pozos de...

Dozier, Monty; Melton, Rebecca; Hare, Michael; Porter, Dana; Lesikar, Bruce J.

2006-02-21T23:59:59.000Z

169

Search for neutrinoless double-beta decay of Ge-76 with GERDA  

E-Print Network [OSTI]

GERDA, the GERmanium Detector Array experiment, is a new double beta-decay experiment which is currently under construction in the INFN National Gran Sasso Laboratory (LNGS), Italy. It is implementing a new shielding concept by operating bare Ge diodes - enriched in Ge-76 - in high purity liquid argon supplemented by a water shield. The aim of GERDA is to verify or refute the recent claim of discovery, and, in a second phase, to achieve a two orders of magnitude lower background index than recent experiments. The paper discusses motivation, physics reach, design and status of construction of GERDA, and presents some R&D results.

Karl-Tasso Knoepfle

2008-09-30T23:59:59.000Z

170

Combining ability of yield components and agronomic characteristics among selected Sorghum bicolor (L.) Moench inbreds  

E-Print Network [OSTI]

parent which produces large seeded hybr ds According to the analysis of variance, gra'n yield did not appear to be significantly affe ted by female general con hiring ability (GCA i or spec' fic combining ab' 1' ty (SCA) . Female az'o male GCA... effects and SCA effects were significant for 300-seed weight, seeds per panicle, days to anthesis, plant height, panicle lencth, exsertion, and threshing percentage. In most cases the interact or. witl years was also important. GCA effects for yield...

Smith, Leslie Kay

1986-01-01T23:59:59.000Z

171

The Nature of Power Synthesizing the History of Technology and Environmental History  

E-Print Network [OSTI]

see and smell the smoke rising from the factories, produc- ing a dense cloud of smog hovering over the city. You can see pistons mov- ing as a result of this burned energy, and you see how those pistons turn line shafts and belts throughout the vast... the shippers. The Gran- ger movement, and later the Populist revolts of the 1890s, can thus be viewed in a wider context as social movements responding to the loss of power within a sociotechnical system designed to make solar energy har- vested in one area...

Russell, Edmund P.; Allison, James; Finger, Thomas; Brown, John K.; Balogh, Brain; Carlson, W. Bernard

2011-04-01T23:59:59.000Z

172

Physics Potential and Prospects for CUORE and CUORICINO experiments  

E-Print Network [OSTI]

The CUORE (Cryogenic Underground Observatory for Rare Events) experiment projects to construct and operate an array of 1000 cryogenic thermal detectors of a mass of 760 g each to investigate rare events physics, in particular, double beta decay and non baryonic particle dark matter. A first step towards CUORE is CUORICINO, an array of 56 of such bolometers, currently being installed in the Gran Sasso. In this paper we report the physics potential of both stages of the experiment regarding neutrinoless double beta decay of 130Te, WIMP searches and solar axions.

I. G. Irastorza; A. Morales; S. Scopel; S. Cebrian

2002-06-17T23:59:59.000Z

173

Detection of a small shift in a broad distribution  

E-Print Network [OSTI]

Statistical methods for the extraction of a small shift in broad data distributions are examined by means of Monte Carlo simulations. This work was originally motivated by the CERN neutrino beam to Gran Sasso (CNGS) experiment for which the OPERA detector collaboration reported a time shift in a broad distribution with an accuracy of $\\pm 7.8\\,$ns, while the fluctuation of the average time turns with $\\pm 23.8\\,$ns out to be much larger. Although the physical result of a big shift has been withdrawn, statistical methods that make an identification in a broad distribution with such a small error possible remain of interest.

Bernd A. Berg

2014-09-05T23:59:59.000Z

174

Sic et non en el Libro de buen amor  

E-Print Network [OSTI]

. Si durante gran parte de la Edad Media, a pesar de cualquier dureza que se acostumbra asociar con lo medieval, el hombre humilde vivia en armonia con su medio ambiente (Bishop 266-67), cuando llegamos al siglo catorce, e incluso antes, encontramos...). La prosperidad economica aumento el numero de personas que disponian del tiempo libre para especular acerca de su suerte dentro del cosmos y de los medios materiales para disfrutar el ocio (Bishop 279-80). Puesto que las capas superiores de la...

Hinton, Melvin

1999-01-01T23:59:59.000Z

175

Physics Potential and Prospects for the CUORICINO and CUORE Experiments  

E-Print Network [OSTI]

The CUORE experiment projects to construct and operate an array of 1000 cryogenic thermal detectors of TeO2, of a mass of 760 g each, to investigate rare events physics, in particular, double beta decay and non baryonic particle dark matter. A first step towards CUORE is CUORICINO, an array of 62 bolometers, currently being installed in the Gran Sasso Laboratory. In this paper we report the physics potential of both stages of the experiment regarding neutrinoless double beta decay of 130Te, WIMP searches and solar axions.

CUORE Collaboration

2003-02-16T23:59:59.000Z

176

México: Lope, transa y dramaturgia  

E-Print Network [OSTI]

mexicanos ha rebasado cualquier expectativa de ficción, en un sólo día podemos experimentar en México, un sismo de 6.7 grados Richter, o el desalojo en nuestro lugar de trabajo para salvar la integridad por una supuesta bomba terrorista del ejército... sismo que desapareció gran parte del centro de la ciudad de México. Al respecto de esta obra, Gonzalo Valdês Medellín apunta: El pivote, el núcleo que genera la voluntad expositiva de Pérez Quitt sin duda lo da ese tono rebelde e iconoclasta que...

Pé rez Quitt, Ricardo

1998-10-01T23:59:59.000Z

177

CUORE crystal validation runs: results on radioactive contamination and extrapolation to CUORE background  

E-Print Network [OSTI]

The CUORE Crystal Validation Runs (CCVRs) have been carried out since the end of 2008 at the Gran Sasso National Laboratories, in order to test the performances and the radiopurity of the TeO$_2$ crystals produced at SICCAS (Shanghai Institute of Ceramics, Chinese Academy of Sciences) for the CUORE experiment. In this work the results of the first 5 validation runs are presented. Results have been obtained for bulk contaminations and surface contaminations from several nuclides. An extrapolation to the CUORE background has been performed.

Alessandria, F; Ardito, R; Arnaboldi, C; Avignone, F T; Balata, M; Bandac, I; Banks, T I; Bari, G; Beeman, J W; Bellini, F; Bersani, A; Biassoni, M; Bloxham, T; Brofferio, C; Bryant, A; Bucci, C; Cai, X Z; Canonica, L; Capelli, S; Carbone, L; Cardani, L; Carrettoni, M; Chott, N; Clemenza, M; Cosmelli, C; Cremonesi, O; Creswick, R J; Dafinei, I; Dally, A; De Biasi, A; Decowski, M P; Deninno, M M; de Waard, A; Di Domizio, S; Ejzak, L; Faccini, R; Fang, D Q; Farach, H; Ferri, E; Ferroni, F; Fiorini, E; Foggetta, L; Freedman, S; Frossati, G; Giachero, A; Gironi, L; Giuliani, A; Gorla, P; Gotti, C; Guardincerri, E; Gutierrez, T D; Haller, E E; Han, K; Heeger, K M; Huang, H Z; Ichimura, K; Kadel, R; Kazkaz, K; Keppel, G; Kogler, L; Kolomensky, Y G; Kraft, S; Lenz, D; Li, Y L; Liu, X; Longo, E; Ma, Y G; Maiano, C; Maier, G; Martinez, C; Martinez, M; Maruyama, R H; Moggi, N; Morganti, S; Newman, S; Nisi, S; Nones, C; Norman, E B; Nucciotti, A; Orio, F; Orlandi, D; Ouellet, J; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pedretti, M; Pessina, G; Pirro, S; Previtali, E; Rampazzo, V; Rimondi, F; Rosenfeld, C; Rusconi, C; Salvioni, C; Sangiorgio, S; Schaeffer, D; Scielzo, N D; Sisti, M; Smith, A R; Stivanello, F; Taffarello, L; Terenziani, G; Tian, W D; Tomei, C; Trentalange, S; Ventura, G; Vignati, M; Wang, B; Wang, H W; Whitten, C A; Wise, T; Woodcraft, A; Xu, N; Zanotti, L; Zarra, C; Zhu, B X; Zucchelli, S

2011-01-01T23:59:59.000Z

178

CUORE crystal validation runs: results on radioactive contamination and extrapolation to CUORE background  

E-Print Network [OSTI]

The CUORE Crystal Validation Runs (CCVRs) have been carried out since the end of 2008 at the Gran Sasso National Laboratories, in order to test the performances and the radiopurity of the TeO$_2$ crystals produced at SICCAS (Shanghai Institute of Ceramics, Chinese Academy of Sciences) for the CUORE experiment. In this work the results of the first 5 validation runs are presented. Results have been obtained for bulk contaminations and surface contaminations from several nuclides. An extrapolation to the CUORE background has been performed.

F. Alessandria; E. Andreotti; R. Ardito; C. Arnaboldi; F. T. Avignone III; M. Balata; I. Bandac; T. I. Banks; G. Bari; J. W. Beeman; F. Bellini; A. Bersani; M. Biassoni; T. Bloxham; C. Brofferio; A. Bryant; C. Bucci; X. Z. Cai; L. Canonica; S. Capelli; L. Carbone; L. Cardani; M. Carrettoni; N. Chott; M. Clemenza; C. Cosmelli; O. Cremonesi; R. J. Creswick; I. Dafinei; A. Dally; A. De Biasi; M. P. Decowski; M. M. Deninno; A. de Waard; S. Di Domizio; L. Ejzak; R. Faccini; D. Q. Fang; H. Farach; E. Ferri; F. Ferroni; E. Fiorini; L. Foggetta; S. Freedman; G. Frossati; A. Giachero; L. Gironi; A. Giuliani; P. Gorla; C. Gotti; E. Guardincerri; T. D. Gutierrez; E. E. Haller; K. Han; K. M. Heeger; H. Z. Huang; K. Ichimura; R. Kadel; K. Kazkaz; G. Keppel; L. Kogler; Y. G. Kolomensky; S. Kraft; D. Lenz; Y. L. Li; X. Liu; E. Longo; Y. G. Ma; C. Maiano; G. Maier; C. Martinez; M. Martinez; R. H. Maruyama; N. Moggi; S. Morganti; S. Newman; S. Nisi; C. Nones; E. B. Norman; A. Nucciotti; F. Orio; D. Orlandi; J. Ouellet; M. Pallavicini; V. Palmieri; L. Pattavina; M. Pavan; M. Pedretti; G. Pessina; S. Pirro; E. Previtali; V. Rampazzo; F. Rimondi; C. Rosenfeld; C. Rusconi; C. Salvioni; S. Sangiorgio; D. Schaeffer; N. D. Scielzo; M. Sisti; A. R. Smith; F. Stivanello; L. Taffarello; G. Terenziani; W. D. Tian; C. Tomei; S. Trentalange; G. Ventura; M. Vignati; B. Wang; H. W. Wang; C. A. Whitten Jr; T. Wise; A. Woodcraft; N. Xu; L. Zanotti; C. Zarra; B. X. Zhu; S. Zucchelli

2011-09-05T23:59:59.000Z

179

Economic analysis of the Stiles Farm: a linear programming approach  

E-Print Network [OSTI]

cotton allotrent; 1, 033. 5 ac. & X (ll) For feed crain base; 1, 498 ac. & X In the case of' objective function two' the acreace restriction equations are: (12) . -. 'or effecti. v cottcn allotment; 1, 033. 5 ac. & X + X 7 (13) 7 :"or dc:. stic... cotton alloi~~t; 671. 77 ac. & X (14) =or cotton diverted acres; 310. 00 ac. & X + X (15) (16) :-or feed gra'n base; 1, 498. 00 ac. & X3 + X4 + X5 . or dom-. stic feed crain base; 749. 00 ac. & X3 (17) For paic crain sorghum diversion. 499. 00 ac...

Barreyro, Hector Ramon

1971-01-01T23:59:59.000Z

180

LUNA and the Sun  

SciTech Connect (OSTI)

One of the main ingredients of nuclear astrophysics is the knowledge of the thermonu-clear reactions responsible for the stellar luminosity and for the synthesis of the chemical elements. Deep underground in the Gran Sasso Laboratory the cross section of the key reactions of the proton-proton chain and of the Carbon-Nitrogen-Oxygen (CNO) cycle have been measured right down to the energies of astrophysical interest. The main results obtained in the past 20 years are reviewed and their influence on our understanding of the properties of the neutrino and the Sun is discussed.

Broggini, Carlo [INFN, via Marzolo 8, I-35131 Padova (Italy); Collaboration: LUNA Collaboration

2014-05-09T23:59:59.000Z

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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.


181

Testing solar neutrino MSW oscillations at low delta m^2 through time variations of event rates in GNO and BOREXINO  

E-Print Network [OSTI]

The Mikheyev-Smirnov-Wolfenstein (MSW) explanation of the solar neutrino problem is currently compatible with three distinct regions of the two-neutrino oscillation parameter space (delta m^2,sin^2 2theta). We focus on the region with the lowest value of delta m^2 (~10^{-7} eV^2), which implies significant Earth regeneration effects for low-energy solar neutrinos. We point out that such effects are not only observable as day-night variations of neutrino event rates in the real-time BOREXINO experiment, but also as seasonal variations in the radiochemical Gallium Neutrino Observatory (GNO) at Gran Sasso. We present detailed calculations of the difference between winter and summer rates in GNO (six months averages) in excess of the trivial seasonal variation due to the Earth orbital eccentricity. We show that, within the low-delta m^2 MSW solution, the net winter-summer GNO rate difference amounts to 4-6 SNU, with a dominant contribution from pp neutrinos. We also give analytical expressions for the winter and summer solar exposure functions at the Gran Sasso site.

G. L. Fogli; E. Lisi; D. Montanino; A. Palazzo

1999-10-18T23:59:59.000Z

182

Search for Neutrinoless Double Beta Decay with the CUORE experiment  

SciTech Connect (OSTI)

CUORE is a next generation experiment aimed at the detection of neutrinoless Double Beta Decay of the nuclide {sup 130}Te. The experiment, which will take place in the Gran Sasso National Laboratory (Italy), will look for this rare decay using the macrobolometric technique with a prospected array of 988 detectors. Each bolometer will be constituted by a 5x5x5 cm{sup 3} TeO{sub 2} crystal, for a total mass of about 200 kg of {sup 130}Te, and will be maintained at a temperature of 10 mK. CUORE will probe the effective mass of the neutrino with a sensitivity of a few tens of meV. If an excess of counts are observed above background at the 2.5 MeV corresponding to the Q-value of the decay, CUORE will answer several questions that are still open in the field of neutrino physics, such as the determination of the particle's Majorana nature and of the absolute mass scale. A prototype for CUORE in Gran Sasso, named CUORICINO, has just closed after five years proving its importance as a stand-alone experiment.

Gorla, P. [Laboratori Nazionali del Gran Sasso-INFN, S.S. 17 bis, km 18-910 67010 Assergi (Italy)

2009-12-17T23:59:59.000Z

183

A new method for the determination of cystine and cysteine in foodstuffs containing carbohydrates  

E-Print Network [OSTI]

. x. 'F1 1 od f th I t 1 ? fn??1 f 6". ? Ramples o" fooc-zuxterials were ground i? a . =. rS. ?ci?r! . vill to a fine oowder, In order to accomplish this the uaterials sex o passen throu'-h the mill twice ~ The samples were pre;erve? in air? t...S. Tht bottle -. Accurately weigheu one gran sam?. ~les vere transferre? to roun? bottoms, . flasks (2gO ml ~ ) and onc gra . of tyrosine w;. s adds? to each. 1OG ml, of 1:& HC1 were addeo??o the flaw= s were eton-xere?with rubbex st?p ~era after...

Doctor, Bhupendra Pannalal

1955-01-01T23:59:59.000Z

184

Regmi Research Series ,Year 13, December 1, 1981  

E-Print Network [OSTI]

of Olangchung ' 10 . The Ncya MUluk . 11. Administrative Arrangements in the Eastern Tara! Reeion and Chitaun 12. Ja.&1r 'l-.ent.s. 1n Bode Vill agE:. '"13 . Levy on .Tag! r Incomes, 1891 14, Supply o f Timber 1n Munition s Factory . 15 . Jhara Exemption... .Uiries . Rcmissi.ons shall be gran ted to you on an annual basis for lands gr'Nl ted according_ to t?l!se rules unde r the c01lnter-sigoa,ture of the Chaudhari, the Kanugoye flnd the J aibar . . - Supply ~hQta ond tagaVi cre.dit for land recJ.amation ,and...

Regmi, Mahesh C

1981-01-01T23:59:59.000Z

185

Final results of an experiment to search for 2beta processes in zinc and tungsten with the help of radiopure ZnWO4 crystal scintillators  

E-Print Network [OSTI]

A search for the double beta decay of zinc and tungsten isotopes has been performed with the help of radiopure ZnWO4 crystal scintillators (0.1-0.7 kg) at the Gran Sasso National Laboratories of the INFN. The total exposure of the low background measurements is 0.529 kg yr. New improved half-life limits on the double beta decay modes of 64Zn, 70Zn, 180W, and 186W have been established at the level of 10^{18}-10^{21} yr. In particular, limits on double electron capture and electron capture with positron emission in 64Zn have been set: T_{1/2}(2\

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; S. d'Angelo; A. Incicchitti; V. V. Kobychev; D. V. Poda; V. I. Tretyak

2011-10-18T23:59:59.000Z

186

Search for double beta decay of Zinc and Tungsten with the help of low-background ZnWO4 crystal scintillators  

E-Print Network [OSTI]

Double beta processes in 64-Zn, 70-Zn, 180-W, and 186-W have been searched for with the help of large volume (0.1-0.7 kg) low background ZnWO4 crystal scintillators at the Gran Sasso National Laboratories of the INFN. Total time of measurements exceeds 10 thousands hours. New improved half-life limits on double electron capture and electron capture with positron emission in 64-Zn have been set, in particular (all the limits are at 90% C.L.): T1/2(0nu2EC)> 1.1e20 yr, T1/2(2nuECbeta+)>7.0e20 yr, and T1/2(0nuECbeta+)>4.3e20 yr. The different modes of double beta processes in 70-Zn, 180-W, and 186-W have been restricted at the level of 1e17-1e20 yr.

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; B. V. Grinyov; A. Incicchitti; V. V. Kobychev; V. M. Mokina; S. S. Nagorny; L. L. Nagornaya; S. Nisi; F. Nozzoli; D. V. Poda; D. Prosperi; V. I. Tretyak; S. S. Yurchenko

2008-11-14T23:59:59.000Z

187

Absence of day-night asymmetry of 862 keV Be-7 solar neutrino rate in Borexino and MSW oscillation parameters  

E-Print Network [OSTI]

We report on a search for the day-night asymmetry of the Be-7 solar neutrino rate measured by Borexino at the Laboratori Nazionali del Gran Sasso (LNGS), Italy. The measured value, Adn=0.001 +- 0.012 (stat) +- 0.007 (syst), shows the absence of a significant asymmetry. This result alone rejects the so-called LOW solution at more than 8.5 sigma. Combined with the other solar neutrino data, it isolates the Large Mixing Angle (LMA) -- MSW solution at DeltaChi2 > 190 without relying on the assumption of CPT symmetry in the neutrino sector. We also show that including the day-night asymmetry, data from Borexino alone restricts the MSW neutrino oscillations to the LMA solution at 90% confidence level.

,

2011-01-01T23:59:59.000Z

188

Absence of day-night asymmetry of 862 keV Be-7 solar neutrino rate in Borexino and MSW oscillation parameters  

E-Print Network [OSTI]

We report on a search for the day-night asymmetry of the Be-7 solar neutrino rate measured by Borexino at the Laboratori Nazionali del Gran Sasso (LNGS), Italy. The measured value, Adn=0.001 +- 0.012 (stat) +- 0.007 (syst), shows the absence of a significant asymmetry. This result alone rejects the so-called LOW solution at more than 8.5 sigma. Combined with the other solar neutrino data, it isolates the Large Mixing Angle (LMA) -- MSW solution at DeltaChi2 > 190 without relying on the assumption of CPT symmetry in the neutrino sector. We also show that including the day-night asymmetry, data from Borexino alone restricts the MSW neutrino oscillations to the LMA solution at 90% confidence level.

The Borexino Collaboration

2012-01-05T23:59:59.000Z

189

Measurements of extremely low radioactivity levels in BOREXINO  

E-Print Network [OSTI]

The techniques researched, developed and applied towards the measurement of radioisotope concentrations at ultra-low levels in the real-time solar neutrino experiment BOREXINO at Gran Sasso are presented and illustrated with specific results of widespread interest. We report the use of low-level germanium gamma spectrometry, low-level miniaturized gas proportional counters and low background scintillation detectors developed in solar neutrino research. Each now sets records in its field. We additionally describe our techniques of radiochemical ultra-pure, few atom manipulations and extractions. Forefront measurements also result from the powerful combination of neutron activation and low-level counting. Finally, with our techniques and commercially available mass spectrometry and atomic absorption spectroscopy, new low-level detection limits for isotopes of interest are obtained.

Arpesella, C

2001-01-01T23:59:59.000Z

190

Low background detector with enriched 116CdWO4 crystal scintillators to search for double beta decay of 116Cd  

E-Print Network [OSTI]

A cadmium tungstate crystal boule enriched in $^{116}$Cd to 82% with mass of 1868 g was grown by the low-thermal-gradient Czochralski technique. The isotopic composition of cadmium and the trace contamination of the crystal were estimated by High Resolution Inductively Coupled Plasma Mass-Spectrometry. The crystal scintillators produced from the boule were subjected to characterization that included measurements of transmittance and energy resolution. A low background scintillation detector with two $^{116}$CdWO$_4$ crystal scintillators (586 g and 589 g) was developed. The detector was running over 1727 h deep underground at the Gran Sasso National Laboratories of the INFN (Italy), which allowed to estimate the radioactive contamination of the enriched crystal scintillators. The radiopurity of a third $^{116}$CdWO$_4$ sample (326 g) was tested with the help of ultra-low background high purity germanium $\\gamma$ detector. Monte Carlo simulations of double $\\beta$ processes in $^{116}$Cd were used to estimate ...

Barabash, A S; Bernabei, R; Boiko, R S; Cappella, F; Caracciolo, V; Chernyak, D M; Cerulli, R; Danevich, F A; Di Vacri, M L; Dossovitskiy, A E; Galashov, E N; Incicchitti, A; Kobychev, V V; Konovalov, S I; Kovtun, G P; Kudovbenko, V M; Laubenstein, M; Mikhlin, A L; Nisi, S; Poda, D V; Podviyanuk, R B; Polischuk, O G; Shcherban, A P; Shlegel, V N; Solopikhin, D A; Stenin, Yu G; Tretyak, V I; Umatov, V I; Vasiliev, Ya V; Virich, V D

2011-01-01T23:59:59.000Z

191

Measurements of extremely low radioactivity levels in BOREXINO  

E-Print Network [OSTI]

The techniques researched, developed and applied towards the measurement of radioisotope concentrations at ultra-low levels in the real-time solar neutrino experiment BOREXINO at Gran Sasso are presented and illustrated with specific results of widespread interest. We report the use of low-level germanium gamma spectrometry, low-level miniaturized gas proportional counters and low background scintillation detectors developed in solar neutrino research. Each now sets records in its field. We additionally describe our techniques of radiochemical ultra-pure, few atom manipulations and extractions. Forefront measurements also result from the powerful combination of neutron activation and low-level counting. Finally, with our techniques and commercially available mass spectrometry and atomic absorption spectroscopy, new low-level detection limits for isotopes of interest are obtained.

Borexino Collaboration; C. Arpesella

2001-09-20T23:59:59.000Z

192

Preliminary study of feasibility of an experiment looking for excited state double beta transitions in Tin  

E-Print Network [OSTI]

A first attempt to study the feasibility of an experiment to search for double beta decay in $^{124}$Sn and $^{112}$Sn was carried out by using ultra-low background HPGe detector (244 cm$^{3}$) inside the Gran Sasso National Laboratory (LNGS) of the INFN (Italy). A small sample of natural Sn was examined for 2367.5 h. The radioactive contamination of the sample has been estimated. The data has also been considered to calculate the present sensitivity for the proposed search; half-life limits $\\sim$ $10^{17} - 10^{18}$ years for $\\beta^{+}$EC and EC-EC processes in $^{112}$Sn and $\\sim$ $10^{18}$ years for $\\beta^{-}\\beta^{-}$ transition in $^{124}$Sn were measured. In the last section of the paper the enhancement of the sensitivity for a proposed experiment with larger mass to reach theoretically estimated values of half-lives is discussed.

Soumik Das; S. K. Ghorui; P. K. Raina; A. K. Singh; P. K. Rath; F. Cappella; R. Cerulli; M. Laubenstein; P. Belli; R. Bernabei

2015-02-09T23:59:59.000Z

193

Borexino: A real time liquid scintillator detector for low energy solar neutrino study  

E-Print Network [OSTI]

Borexino is a large unsegmented calorimeter featuring 300 tons of liquid scintillator, contained in a 8.5 meter nylon vessel, viewed by 2200 PMTs. The main goal of Borexino is the study, in real time, of low energy solar neutrinos, and in particular, the monoenergetic neutrinos coming from $^7Be$, which is one of the missing links on the solar neutrino problem. The achievement of high radiopurity level, in the order of $10^{-16} g/g$ of U/Th equivalent, necessary to the detection of the low energy component of the solar neutrino flux, was proved in the Borexino prototype: the Counting Test Facility. The detector is located underground in the Laboratori Nazionali del Gran Sasso in the center of Italy at 3500 meter water equivalent depth. In this paper the science and technology of Borexino are reviewed and its main capabilities are presented.

Lino Miramonti

2002-06-25T23:59:59.000Z

194

Preliminary study of feasibility of an experiment looking for excited state double beta transitions in Tin  

E-Print Network [OSTI]

A first attempt to study the feasibility of an experiment to search for double beta decay in $^{124}$Sn and $^{112}$Sn was carried out by using ultra-low background HPGe detector (244 cm$^{3}$) inside the Gran Sasso National Laboratory (LNGS) of the INFN (Italy). A small sample of natural Sn was examined for 2367.5 h. The radioactive contamination of the sample has been estimated. The data has also been considered to calculate the present sensitivity for the proposed search; half-life limits $\\sim$ $10^{17} - 10^{18}$ years for $\\beta^{+}$EC and EC-EC processes in $^{112}$Sn and $\\sim$ $10^{18}$ years for $\\beta^{-}\\beta^{-}$ transition in $^{124}$Sn were measured. In the last section of the paper the enhancement of the sensitivity for a proposed experiment with larger mass to reach theoretically estimated values of half-lives is discussed.

Das, Soumik; Raina, P K; Singh, A K; Rath, P K; Cappella, F; Cerulli, R; Laubenstein, M; Belli, P; Bernabei, R

2015-01-01T23:59:59.000Z

195

Preparation and characterisation of isotopically enriched Ta$_2$O$_5$ targets for nuclear astrophysics studies  

E-Print Network [OSTI]

The direct measurement of reaction cross sections at astrophysical energies often requires the use of solid targets of known thickness, isotopic composition, and stoichiometry that are able to withstand high beam currents for extended periods of time. Here, we report on the production and characterisation of isotopically enriched Ta$_2$O$_5$ targets for the study of proton-induced reactions at the Laboratory for Underground Nuclear Astrophysics facility of the Laboratori Nazionali del Gran Sasso. The targets were prepared by anodisation of tantalum backings in enriched water (up to 66% in $^{17}$O and up to 96% in $^{18}$O). Special care was devoted to minimising the presence of any contaminants that could induce unwanted background reactions with the beam in the energy region of astrophysical interest. Results from target characterisation measurements are reported, and the conclusions for proton capture measurements with these targets are drawn.

A. Caciolli; D. A. Scott; A. Di Leva; A. Formicola; M. Aliotta; M. Anders; A. Bellini; D. Bemmerer; C. Broggini; M. Campeggio; P. Corvisiero; R. Depalo; Z. Elekes; Zs. Fülöp; G. Gervino; A. Guglielmetti; C. Gustavino; Gy. Gyürky; G. Imbriani; M. Junker; M. Marta; R. Menegazzo; E. Napolitani; P. Prati; V. Rigato; V. Roca; C. Rolfs; C. Rossi Alvarez; E. Somorjai; C. Salvo; O. Straniero; F. Strieder; T. Szücs; F. Terrasi; H. P. Trautvetter; D. Trezzi

2012-10-01T23:59:59.000Z

196

First Measurement of the He3+He3-->He4+2p Cross Section down to the Lower Edge of the Solar Gamow Peak  

E-Print Network [OSTI]

We give the LUNA results on the cross section measurement of a key reaction of the proton-proton chain strongly affecting the calculated neutrino luminosity from the Sun: He3+He3-->He4+2p. Due to the cosmic ray suppression provided by the Gran Sasso underground laboratory it has been possible to measure the cross section down to the lower edge of the solar Gamow peak, i.e. as low as 16.5 keV centre of mass energy. The data clearly show the cross section increase due to the electron screening effect but they do not exhibit any evidence for a narrow resonance suggested to explain the observed solar neutrino flux.

The LUNA Collaboration; R. Bonetti; C. Broggini; L. Campajola; P. Corvisiero; A. D'Alessandro; M. Dessalvi; A. D'Onofrio; A. Fubini; G. Gervino; L. Gialanella; U. Greife; A. Guglielmetti; C. Gustavino; G. Imbriani; M. Junker; P. Prati; V. Roca; C. Rolfs; M. Romano; F. Schuemann; F. Strieder; F. Terrasi; H. P. Trautvetter; S. Zavatarelli

1999-02-10T23:59:59.000Z

197

Measurement of 25Mg(p; gamma)26Al resonance strengths via gamma spectrometry  

E-Print Network [OSTI]

The COMPTEL instrument performed the first mapping of the 1.809 MeV photons in the Galaxy, triggering considerable interest in determing the sources of interstellar 26Al. The predicted 26Al is too low compared to the observation, for a better understanding more accurate rates for the 25Mg(p; gamma)26Al reaction are required. The 25Mg(p;gamma)26Al reaction has been investigated at the resonances at Er= 745; 418; 374; 304 keV at Ruhr-Universitat-Bochum using a Tandem accelerator and a 4piNaI detector. In addition the resonance at Er = 189 keV has been measured deep underground laboratory at Laboratori Nazionali del Gran Sasso, exploiting the strong suppression of cosmic background. This low resonance has been studied with the 400 kV LUNA accelerator and a HPGe detector. The preliminary results of the resonance strengths will be reported.

A. Formicola; A. Best; G. Imbriani; M. Junker; D. Bemmerer; R. Bonetti; C. Broggini; A. Caciolli; F. Confortola; P. Corvisiero; H. Costantini; Z. Elekes; Zs Fulop; G. Gervino; A. Guglielmetti; Gy Gyurky; C. Gustavino; A. Lemut; B. Limata; M. Marta; C. Mazzocchi; R. Menegazzo; P. Prati; V. Roca; C. Rolfs; C. Rossi Alvarez; E. Somorjai; O. Straniero; F. Strieder; F. Terrasi; H. P. Trautvetter

2007-10-23T23:59:59.000Z

198

Search for 2\\beta\\ decays of 96Ru and 104Ru by ultra-low background HPGe gamma spectrometry at LNGS: final results  

E-Print Network [OSTI]

An experiment to search for double beta decay processes in 96Ru and 104Ru, which are accompanied by gamma rays, has been realized in the underground Gran Sasso National Laboratories of the I.N.F.N. (Italy). Ruthenium samples with masses of about (0.5-0.7) kg were measured with the help of ultra-low background high purity Ge gamma ray spectrometry. After 2162 h of data taking the samples were deeply purified to reduce the internal contamination of 40K. The last part of the data has been accumulated over 5479 h. New improved half life limits on 2\\beta+/\\epsilon \\beta+/2\\epsilon\\ processes in 96Ru have been established on the level of 10^{20} yr, in particular for decays to the ground state of 96Mo: T1/2(2\

Belli, P; Cappella, F; Cerulli, R; Danevich, F A; d'Angelo, S; Incicchitti, A; Kovtun, G P; Kovtun, N G; Laubenstein, M; Poda, D V; Polischuk, O G; Shcherban, A P; Solopikhin, D A; Suhonen, J; Tretyak, V I

2013-01-01T23:59:59.000Z

199

Search for 2? decays of 96Ru and 104Ru by ultra-low background HPGe gamma spectrometry at LNGS: final results  

E-Print Network [OSTI]

An experiment to search for double beta decay processes in 96Ru and 104Ru, which are accompanied by gamma rays, has been realized in the underground Gran Sasso National Laboratories of the I.N.F.N. (Italy). Ruthenium samples with masses of about (0.5-0.7) kg were measured with the help of ultra-low background high purity Ge gamma ray spectrometry. After 2162 h of data taking the samples were deeply purified to reduce the internal contamination of 40K. The last part of the data has been accumulated over 5479 h. New improved half life limits on 2\\beta+/\\epsilon \\beta+/2\\epsilon\\ processes in 96Ru have been established on the level of 10^{20} yr, in particular for decays to the ground state of 96Mo: T1/2(2\

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; S. d'Angelo; A. Incicchitti; G. P. Kovtun; N. G. Kovtun; M. Laubenstein; D. V. Poda; O. G. Polischuk; A. P. Shcherban; D. A. Solopikhin; J. Suhonen; V. I. Tretyak

2013-02-28T23:59:59.000Z

200

First search for double beta decay of platinum by ultra-low background HP Ge gamma spectrometry  

E-Print Network [OSTI]

A search for double beta processes in 190Pt and 198Pt was realized with the help of ultra-low background HP Ge 468 cm^3 gamma spectrometer in the underground Gran Sasso National Laboratories of the INFN (Italy). After 1815 h of data taking with 42.5 g platinum sample, T_{1/2} limits on 2beta processes in 190Pt (\\epsilon\\beta^+ and 2\\epsilon) have been established on the level of 10^{14}-10^{16} yr, 3 to 4 orders of magnitude higher than those known previously. In particular, a possible resonant double electron capture in 190Pt was restricted on the level of 2.9 \\times 10^{16} yr at 90% C.L. In addition, T_{1/2} limit on 2 beta^- decay of 198Pt (2\

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; A. Di Marco; A. Incicchitti; M. Laubenstein; S. S. Nagorny; S. Nisi; O. G. Polischuk; V. I. Tretyak

2011-04-29T23:59:59.000Z

Note: This page contains sample records for the topic "idgeport-prunt ytown gran" 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.


201

Measurement of 25Mg(p; gamma)26Al resonance strengths via gamma spectrometry  

E-Print Network [OSTI]

The COMPTEL instrument performed the first mapping of the 1.809 MeV photons in the Galaxy, triggering considerable interest in determing the sources of interstellar 26Al. The predicted 26Al is too low compared to the observation, for a better understanding more accurate rates for the 25Mg(p; gamma)26Al reaction are required. The 25Mg(p;gamma)26Al reaction has been investigated at the resonances at Er= 745; 418; 374; 304 keV at Ruhr-Universitat-Bochum using a Tandem accelerator and a 4piNaI detector. In addition the resonance at Er = 189 keV has been measured deep underground laboratory at Laboratori Nazionali del Gran Sasso, exploiting the strong suppression of cosmic background. This low resonance has been studied with the 400 kV LUNA accelerator and a HPGe detector. The preliminary results of the resonance strengths will be reported.

Formicola, A; Imbriani, G; Junker, M; Bemmerer, D; Bonetti, R; Broggini, C; Caciolli, A; Confortola, F; Corvisiero, P; Costantini, H; Elekes, Z; Fülöp, Z; Gervino, G; Guglielmetti, A; Gyurky, Gy; Gustavino, C; Lemut, A; Limata, B; Marta, M; Mazzocchi, C; Menegazzo, R; Prati, P; Roca, V; Rolfs, C; Alvarez, C Rossi; Somorjai, E; Straniero, O; Strieder, F; Terrasi, F; Trautvetter, H P

2007-01-01T23:59:59.000Z

202

First search for double beta decay of platinum by ultra-low background HP Ge gamma spectrometry  

E-Print Network [OSTI]

A search for double beta processes in 190Pt and 198Pt was realized with the help of ultra-low background HP Ge 468 cm^3 gamma spectrometer in the underground Gran Sasso National Laboratories of the INFN (Italy). After 1815 h of data taking with 42.5 g platinum sample, T_{1/2} limits on 2beta processes in 190Pt (\\epsilon\\beta^+ and 2\\epsilon) have been established on the level of 10^{14}-10^{16} yr, 3 to 4 orders of magnitude higher than those known previously. In particular, a possible resonant double electron capture in 190Pt was restricted on the level of 2.9 \\times 10^{16} yr at 90% C.L. In addition, T_{1/2} limit on 2 beta^- decay of 198Pt (2\

Belli, P; Cappella, F; Cerulli, R; Danevich, F A; Di Marco, A; Incicchitti, A; Laubenstein, M; Nagorny, S S; Nisi, S; Polischuk, O G; Tretyak, V I

2011-01-01T23:59:59.000Z

203

The influence of Earth rotation in neutrino speed measurements between CERN and the OPERA detector  

E-Print Network [OSTI]

The OPERA neutrino experiment at the underground Gran Sasso Laboratory recently reported, in arXiv:1109.4897v1, high-accuracy velocity measurements of neutrinos from the CERN CNGS beam over the 730 km distance between the two laboratories. This raised significant interest, as the observed neutrinos appeared to arrive at the OPERA detector about 60 ns (or equivalently 18 m) earlier than would have been expected if they had traveled at the speed of light, with high statistical significance. As the authors did not indicate whether and how they took into account the Coriolis or Sagnac effect that Earth's rotation has on the (southeastwards traveling) neutrinos, this brief note quantifies this effect. It would explain a 2.2 ns later arrival time.

Markus G. Kuhn

2011-10-20T23:59:59.000Z

204

Recent Borexino results and prospects for the near future  

E-Print Network [OSTI]

The Borexino experiment, located in the Gran Sasso National Laboratory, is an organic liquid scintillator detector conceived for the real time spectroscopy of low energy solar neutrinos. The data taking campaign phase I (2007 - 2010) has allowed the first independent measurements of 7Be, 8B and pep fluxes as well as the first measurement of anti-neutrinos from the earth. After a purification of the scintillator, Borexino is now in phase II since 2011. We review here the recent results achieved during 2013, concerning the seasonal modulation in the 7Be signal, the study of cosmogenic backgrounds and the updated measurement of geo-neutrinos. We also review the upcoming measurements from phase II data (pp, pep, CNO) and the project SOX devoted to the study of sterile neutrinos via the use of a 51Cr neutrino source and a 144Ce-144Pr antineutrino source placed in close proximity of the active material.

D. D'Angelo; G. Bellini; J. Benziger; D. Bick; G. Bonfini; M. Buizza Avanzini; B. Caccianiga; L. Cadonati; F. Calaprice; P. Cavalcante; A. Chavarria; A. Chepurnov; S. Davini; A. Derbin; A. Empl; A. Etenko; F. von Feilitzsch; K. Fomenko; D. Franco; C. Galbiati; S. Gazzana; C. Ghiano; M. Giammarchi; M. Goeger-Neff; A. Goretti; L. Grandi; C. Hagner; E. Hungerford; Aldo Ianni; Andrea Ianni; V. Kobychev; D. Korablev; G. Korga; D. Kryn; M. Laubenstein; B. Lehnert; T. Lewke; E. Litvinovich; F. Lombardi; P. Lombardi; L. Ludhova; G. Lukyanchenko; I. Machulin; S. Manecki; W. Maneschg; G. Manuzio; Q. Meindl; E. Meroni; L. Miramonti; M. Misiaszek; P. Mosteiro; V. Muratova; L. Oberauer; M. Obolensky; F. Ortica; K. Otis; M. Pallavicini; L. Papp; L. Perasso; S. Perasso; A. Pocar; G. Ranucci; A. Razeto; A. Re; A. Romani; N. Rossi; R. Saldanha; C. Salvo; S. Schoenert; H. Simgen; M. Skorokhvatov; O. Smirnov; A. Sotnikov; S. Sukhotin; Y. Suvorov; R. Tartaglia; G. Testera; D. Vignaud; R. B. Vogelaar; J. Winter; M. Wojcik; A. Wright; M. Wurm; J. Xu; O. Zaimidoroga; S. Zavatarelli; K. Zuber; G. Zuzel

2014-05-30T23:59:59.000Z

205

Performance of a large TeO2 crystal as a cryogenic bolometer in searching for neutrinoless double beta decay  

E-Print Network [OSTI]

Bolometers are ideal devices in the search for neutrinoless Double Beta Decay. Enlarging the mass of individual detectors would simplify the construction of a large experiment, but would also decrease the background per unit mass induced by alpha-emitters located close to the surfaces and background arising from external and internal gamma's. We present the very promising results obtained with a 2.13 kg TeO2 crystal. This bolometer, cooled down to a temperature of 10.5 mK in a dilution refrigerator located deep underground in the Gran Sasso National Laboratories, represents the largest thermal detector ever operated. The detector exhibited an energy resolution spanning a range from 3.9 keV (at 145 keV) to 7.8 keV (at the 2615 gamma-line of 208Tl) FWHM. We discuss the decrease in the background per unit mass that can be achieved increasing the mass of a bolometer.

L. Cardani; L. Gironi; J. W. Beeman; I. Dafinei; Z. Ge; G. Pessina; S. Pirro; Y. Zhu

2011-06-03T23:59:59.000Z

206

Status of the CUORE and results from the CUORE-0 neutrinoless double beta decay experiments  

E-Print Network [OSTI]

CUORE is a 741 kg array of TeO2 bolometers for the search of neutrinoless double beta decay of 130Te. The detector is being constructed at the Laboratori Nazionali del Gran Sasso, Italy, where it will start taking data in 2015. If the target background of 0.01 counts/keV/kg/y will be reached, in five years of data taking CUORE will have a 1 sigma half life sensitivity of 10E26 y. CUORE-0 is a smaller experiment constructed to test and demonstrate the performances expected for CUORE. The detector is a single tower of 52 CUORE-like bolometers that started taking data in spring 2013. The status and perspectives of CUORE will be discussed, and the first CUORE-0 data will be presented.

Sisti, M; Avignone, F T; Azzolini, O; Balata, M; Banks, T I; Bari, G; Beeman, J; Bellini, F; Bersani, A; Biassoni, M; Brofferio, C; Bucci, C; Cai, X Z; Camacho, A; Caminata, A; Canonica, L; Cao, X G; Capelli, S; Cappelli, L; Carbone, L; Cardani, L; Casali, N; Cassina, L; Chiesa, D; Chott, N; Clemenza, M; Copello, S; Cosmelli, C; Cremonesi, O; Creswick, R J; Cushman, J S; Dafinei, I; Dally, A; Datskov, V; Dell'Oro, S; Deninno, M; Di Domizio, S; di Vacri, M L; Drobizhev, A; Ejzak, L; Fang, D Q; Farach, H A; Faverzani, M; Fernandes, G; Ferri, E; Ferroni, F; Fiorini, E; Franceschi, M A; Freedman, S J; Fujikawa, B K; Giachero, A; Gironi, L; Giuliani, A; Gorla, P; Gotti, C; Gutierrez, T D; Haller, E E; Han, K; Heeger, K M; Hennings-Yeomans, R; Hickerson, K P; Huang, H Z; Kadel, R; Keppel, G; Kolomensky, Yu G; Li, Y L; Ligi, C; Lim, K E; Liu, X; Ma, Y G; Maiano, C; Maino, M; Martinez, M; Maruyama, R H; Mei, Y; Moggi, N; Morganti, S; Napolitano, T; Nastasi, M; Nisi, S; Nones, C; Norman, E B; Nucciotti, A; O'Donnell, T; Orio, F; Orlandi, D; Ouellet, J L; Pagliarone, C E; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pedretti, M; Pessina, G; Pettinacci, V; Piperno, G; Pira, C; Pirro, S; Pozzi, S; Previtali, E; Rosenfeld, C; Rusconi, C; Sala, E; Sangiorgio, S; Scielzo, N D; Smith, A R; Taffarello, L; Tenconi, M; Terranova, F; Tian, W D; Tomei, C; Trentalange, S; Ventura, G; Vignati, M; Wang, B S; Wang, H W; Wielgus, L; Wilson, J; Winslow, L A; Wise, T; Woodcraft, A; Zanotti, L; Zarra, C; Zhang, G Q; Zhu, B X; Zucchelli, S

2015-01-01T23:59:59.000Z

207

The Search for Neutrinoless Double Beta Decay in CUORE  

E-Print Network [OSTI]

Understanding the nature of neutrino masses will require physics beyond the long-standing Standard Model of particle physics. Neutrinoless double beta decay experiments like the Cryogenic Underground Observatory for Rare Events (CUORE) are uniquely suited for probing the remaining mysteries of neutrino mass, particularly the question of the neutrino's Majorana nature. CUORE will be a next-generation experiment at the Laboratori Nazionali del Gran Sasso in Italy; it will consist of an array of 988 TeO2 detector crystals operated at ~10 mK, following the bolometric technique established by the Cuoricino experiment. It will look for the energy signal produced by the theoretically-predicted neutrinoless double beta decay in Te-130, and therefore reliable energy calibration of the detector is crucial to the experiment's success. We will present the most recent results from Cuoricino and discuss the current status of the CUORE project, with a particular emphasis on the development of the calibration system.

L. M. Ejzak; for the CUORE Collaboration

2009-10-15T23:59:59.000Z

208

GERDA, a GERmanium Detector Array for the search for neutrinoless {beta}{beta} decay in 76Ge  

SciTech Connect (OSTI)

The GERDA project, searching for neutrinoless double beta-decay of 76Ge with enriched germanium detectors submerged in a cryogenic bath, has been approved for installation at the Gran Sasso National Laboratory (LNGS), Italy. The GERDA technique is aiming at a dramatic reduction of the background due to radioactive contaminations of the materials surrounding the detectors. This will lead to a sensitivity of about 1026 years on the half-life of neutrinoless double beta decay. Already in the first phase of the experiment, GERDA will be able to investigate with high statistical significance the claimed evidence for neutrinoless double beta decay of 76Ge based on the data of the Heidelberg-Moscow experiment.

Pandola, L.; Tomei, C. [INFN, Laboratori Nazionali del Gran Sasso, S.S. 17 bis km 18.910, 67010 Assergi (AQ) (Italy)

2006-07-11T23:59:59.000Z

209

Nuclear Processes at Solar Energy  

E-Print Network [OSTI]

LUNA, Laboratory for Underground Nuclear Astrophysics at Gran Sasso, is measuring fusion cross sections down to the energy of the nucleosynthesis inside stars. Outstanding results obtained up to now are the cross-section measurements within the Gamow peak of the Sun of $^{3}He(^{3}He,2p)^{4}He$ and the $D(p,\\gamma)^{3}He$. The former plays a big role in the proton-proton chain, largely affecting the calculated solar neutrino luminosity, whereas the latter is the reaction that rules the proto-star life during the pre-main sequence phase. The implications of such measurements will be discussed. Preliminary results obtained last year on the study of $^{14}N(p,\\gamma)^{15}O$, the slowest reaction of the CNO cycle, will also be shown.

Carlo Broggini

2003-08-29T23:59:59.000Z

210

High sensitivity tests of the Pauli Exclusion Principle with VIP2  

E-Print Network [OSTI]

The Pauli Exclusion Principle is one of the most fundamental rules of nature and represents a pillar of modern physics. According to many observations the Pauli Exclusion Principle must be extremely well fulfilled. Nevertheless, numerous experimental investigations were performed to search for a small violation of this principle. The VIP experiment at the Gran Sasso underground laboratory searched for Pauli-forbidden X-ray transitions in copper atoms using the Ramberg-Snow method and obtained the best limit so far. The follow-up experiment VIP2 is designed to reach even higher sensitivity. It aims to improve the limit by VIP by orders of magnitude. The experimental method, comparison of different PEP tests based on different assumptions and the developments for VIP2 are presented.

Marton, J; Bertolucci, S; Berucci, C; Bragadireanu, M; Cargnelli, M; Curceanu, C; Clozza, A; Di Matteo, S; Egger, J -P; Guaraldo, C; Iliescu, M; Ishiwatari, T; Laubenstein, M; Milotti, E; Pichler, A; Pietreanu, D; Piscicchia, K; Ponta, T; Scordo, A; Shi, H; Sirghi, D L; Sirghi, F; Sperandio, L; Doce, O Vazquez; Widmann, E; Zmeskal, J

2015-01-01T23:59:59.000Z

211

Science and Technology of BOREXINO: A Real Time Detector for Low Energy Solar Neutrinos SOLAR NEUTRINOS  

E-Print Network [OSTI]

BOREXINO, a real-time device for low energy neutrino spectroscopy is nearing completion of construction in the underground laboratories at Gran Sasso, Italy (LNGS). The experiment's goal is the direct measurement of the flux of 7Be solar neutrinos of all flavors via neutrino-electron scattering in an ultra-pure scintillation liquid. Seeded by a series of innovations which were brought to fruition by large scale operation of a 4-ton test detector at LNGS, a new technology has been developed for BOREXINO. It enables sub-MeV solar neutrino spectroscopy for the first time. This paper describes the design of BOREXINO, the various facilities essential to its operation, its spectroscopic and background suppression capabilities and a prognosis of the impact of its results towards resolving the solar neutrino problem. BOREXINO will also address several other frontier questions in particle physics, astrophysics and geophysics.

Borexino Collaboration; G. Alimonti

2000-12-11T23:59:59.000Z

212

The 3He(alpha,gamma)7Be S-factor at solar energies: the prompt gamma experiment at LUNA  

E-Print Network [OSTI]

The 3He(alpha,gamma)7Be process is a key reaction in both Big-Bang nucleosynthesis and p-p chain of Hydrogen Burning in Stars. A new measurement of the 3He(alpha,gamma)7Be cross section has been performed at the INFN Gran Sasso underground laboratory by both the activation and the prompt gamma detection methods. The present work reports full details of the prompt gamma detection experiment, focusing on the determination of the systematic uncertainty. The final data, including activation measurements at LUNA, are compared with the results of the last generation experiments and two different theoretical models are used to obtain the S-factor at solar energies.

H. Costantini; D. Bemmerer; F. Confortola; A. Formicola; Gy. Gyürky; P. Bezzon; R. Bonetti; C. Broggini; P. Corvisiero; Z. Elekes; Zs. Fülöp; G. Gervino; A. Guglielmetti; C. Gustavino; G. Imbriani; M. Junker; M. Laubenstein; A. Lemut; B. Limata; V. Lozza; M. Marta; R. Menegazzo; P. Prati; V. Roca; C. Rolfs; C. Rossi Alvarez; E. Somorjai; O. Straniero; F. Strieder; F. Terrasi; H. P. Trautvetter

2008-09-30T23:59:59.000Z

213

The Cross Section of 3He(3He,2p)4He measured at Solar Energies  

E-Print Network [OSTI]

We report on the results of the \\hethet\\ experiment at the underground accelerator facility LUNA (Gran Sasso). For the first time the lowest projectile energies utilized for the cross section measurement correspond to energies below the center of the solar Gamow peak ($E_{\\rm 0}$=22 keV). The data provide no evidence for the existence of a hypothetical resonance in the energy range investigated. Although no extrapolation is needed anymore (except for energies at the low-energy tail of the Gamow peak), the data must be corrected for the effects of electron screening, clearly observed the first time for the \\hethet\\ reaction. The effects are however larger than expected and not understood, leading presently to the largest uncertainty on the quoted $S_{\\rm b}(E_{\\rm 0})$ value for bare nuclides (=5.40 MeV b).

The LUNA Collaboration; M. Junker; A. D'Alessandro; S. Zavatarelli; C. Arpesella; E. Bellotti; C. Broggini; P. Corvisiero; G. Fiorentini; A. Fubini; G. Gervino; U. Greife; C. Gustavino; J. Lambert; P. Prati; W. S. Rodney; C. Rolfs; F. Strieder; H. P. Trautvetter; D. Zahnow

1998-02-06T23:59:59.000Z

214

Radioactive contamination of BaF2 crystal scintillator  

E-Print Network [OSTI]

Barium fluoride (BaF$_2$) crystal scintillators are promising detectors to search for double beta decay processes in $^{130}$Ba ($Q_{2{\\beta}}$ = 2619(3) keV) and $^{132}$Ba ($Q_{2{\\beta}}$ = 844(1) keV). The $^{130}$Ba isotope is of particular interest because of the indications on 2${\\beta}$ decay found in two geochemical experiments. The radioactive contamination of BaF$_2$ scintillation crystal with mass of 1.714 kg was measured over 113.4 hours in a low-background DAMA/R&D set-up deep underground (3600 m w.e.) at the Gran Sasso National Laboratories of INFN (LNGS, Italy). The half-life of $^{212}$Po (present in the crystal scintillator due to contamination by radium) was estimated as $T_{1/2}$ = 298.8 $\\pm$ 0.8(stat.) $\\pm$ 1.4(syst.) ns by analysis of the events pulse profiles.

O. G. Polischuk; P. Belli; R. Bernabei; F. Cappella; V. Caracciolo; R. Cerulli; A. Di Marco; F. A. Danevich; A. Incicchitti; D. V. Poda; V. I. Tretyak

2013-12-17T23:59:59.000Z

215

Radioactive contamination of BaF2 crystal scintillator  

E-Print Network [OSTI]

Barium fluoride (BaF$_2$) crystal scintillators are promising detectors to search for double beta decay processes in $^{130}$Ba ($Q_{2{\\beta}}$ = 2619(3) keV) and $^{132}$Ba ($Q_{2{\\beta}}$ = 844(1) keV). The $^{130}$Ba isotope is of particular interest because of the indications on 2${\\beta}$ decay found in two geochemical experiments. The radioactive contamination of BaF$_2$ scintillation crystal with mass of 1.714 kg was measured over 113.4 hours in a low-background DAMA/R&D set-up deep underground (3600 m w.e.) at the Gran Sasso National Laboratories of INFN (LNGS, Italy). The half-life of $^{212}$Po (present in the crystal scintillator due to contamination by radium) was estimated as $T_{1/2}$ = 298.8 $\\pm$ 0.8(stat.) $\\pm$ 1.4(syst.) ns by analysis of the events pulse profiles.

Polischuk, O G; Bernabei, R; Cappella, F; Caracciolo, V; Cerulli, R; Di Marco, A; Danevich, F A; Incicchitti, A; Poda, D V; Tretyak, V I

2013-01-01T23:59:59.000Z

216

Some conclusive considerations on the comparison of the ICARUS nu_mu to nu_e oscillation search with the MiniBooNE low-energy event excess  

E-Print Network [OSTI]

A sensitive search for anomalous LSND-like nu_mu to nu_e oscillations has been performed by the ICARUS Collaboration exposing the T600 LAr-TPC to the CERN to Gran Sasso (CNGS) neutrino beam. The result is compatible with the absence of additional anomalous contributions giving a limit to oscillation probability of 3.4E-3 and 7.6E-3 at 90% and 99% confidence levels respectively showing a tension between these new limits and the low-energy event excess (200 energy excess has been performed, including the energy resolution as obtained from the official MiniBooNE data release. As a result the previously reported tension is confirmed at 90% C.L., suggesting an unexplained nature or an otherwise instrumental effect for the MiniBooNE low energy event excess

Antonello, M; Benetti, P; Boffelli, F; Bubak, A; Calligarich, E; Centro, S; Cesana, A; Cieslik, K; Cline, D B; Cocco, A G; Dabrowska, A; Dermenev, A; Falcone, A; Farnese, C; Fava, A; Ferrari, A; Gibin, D; Gninenko, S; Guglielmi, A; Haranczyk, M; Holeczek, J; Kirsanov, M; Kisiel, J; Kochanek, I; Lagoda, J; Mania, S; Menegolli, A; Meng, G; Montanari, C; Otwinowski, S; Picchi, P; Pietropaolo, F; Plonski, P; Rappoldi, A; Raselli, G L; Rossella, M; Rubbia, C; Sala, P; Scaramelli, A; Sergiampietri, F; Stefan, D; Sulej, R; Szarska, M; Terrani, M; Torti, M; Varanini, F; Ventura, S; Vignoli, C; Wang, H; Yang, X; Zalewska, A; Zani, A; Zaremba, K

2015-01-01T23:59:59.000Z

217

First measurement of the 14N(p,gamma)15O cross section down to 70 keV  

E-Print Network [OSTI]

In stars with temperatures above 20*10^6 K, hydrogen burning is dominated by the CNO cycle. Its rate is determined by the slowest process, the 14N(p,gamma)15O reaction. Deep underground in Italy's Gran Sasso laboratory, at the LUNA 400 kV accelerator, the cross section of this reaction has been measured at energies much lower than ever achieved before. Using a windowless gas target and a 4pi BGO summing detector, direct cross section data has been obtained down to 70 keV, reaching a value of 0.24 picobarn. The Gamow peak has been covered by experimental data for several scenarios of stable and explosive hydrogen burning. In addition, the strength of the 259 keV resonance has been remeasured. The thermonuclear reaction rate has been calculated for temperatures 90 - 300 *10^6 K, for the first time with negligible impact from extrapolations.

A. Lemut; D. Bemmerer; F. Confortola; R. Bonetti; C. Broggini; P. Corvisiero; H. Costantini; J. Cruz; A. Formicola; Zs. Fulop; G. Gervino; A. Guglielmetti; C. Gustavino; Gy. Gyurky; G. Imbriani; A. P. Jesus; M. Junker; B. Limata; R. Menegazzo; P. Prati; V. Roca; D. Rogalla; C. Rolfs; M. Romano; C. Rossi Alvarez; F. Schumann; E. Somorjai; O. Straniero; F. Strieder; F. Terrasi; H. P. Trautvetter

2006-02-09T23:59:59.000Z

218

"OPERA superluminal neutrinos explained by spontaneous emission and stimulated absorption"  

E-Print Network [OSTI]

In this work it is shown, that for short 3ns neutrino pulses reported by OPERA, a relativistic shape deforming effect of the neutrino distribution function due to spontaneous emission, produces an earlier arrival of 65.8ns in agreement with the reported 62.1ns\\pm 3.7ns, with a RMS of 16.4ns explaining the apparent superluminal effect. It is also shown, that early arrival of long 10500ns neutrinos pulse to Gran Sasso, by 57.8ns with respect to the speed of light, could be explained by a shape deforming effect due to a combination of stimulated absorption and spontaneous emission, while traveling by the decay tunnel that acts as a LASER tube.

Rafael Torrealba

2011-12-05T23:59:59.000Z

219

A new, very massive modular Liquid Argon Imaging Chamber to detect low energy off-axis neutrinos from the CNGS beam. (Project MODULAr)  

E-Print Network [OSTI]

The paper is considering an opportunity for the CERN/GranSasso (CNGS) neutrino complex, concurrent time-wise with T2K and NOvA, to search for theta_13 oscillations and CP violation. Compared with large water Cherenkov (T2K) and fine grained scintillators (NOvA), the LAr-TPC offers a higher detection efficiency and a lower backgrounds, since virtually all channels may be unambiguously recognized. The present proposal, called MODULAr, describes a 20 kt fiducial volume LAr-TPC, following very closely the technology developed for the ICARUS-T60o, and is focused on the following activities, for which we seek an extended international collaboration: (1) the neutrino beam from the CERN 400 GeV proton beam and an optimised horn focussing, eventually with an increased intensity in the framework of the LHC accelerator improvement program; (2) A new experimental area LNGS-B, of at least 50000 m3 at 10 km off-axis from the main Laboratory, eventually upgradable to larger sizes. A location is under consideration at about 1.2 km equivalent water depth; (3) A new LAr Imaging detector of at least 20 kt fiducial mass. Such an increase in the volume over the current ICARUS T600 needs to be carefully considered. It is concluded that a very large mass is best realised with a set of many identical, independent units, each of 5 kt, "cloning" the technology of the T600. Further phases may foresee extensions of MODULAr to meet future physics goals. The experiment might reasonably be operational in about 4/5 years, provided a new hall is excavated in the vicinity of the Gran Sasso Laboratory and adequate funding and participation are made available.

B. Baibussinov; M. Baldo Ceolin; G. Battistoni; P. Benetti; A. Borio; E. Calligarich; M. Cambiaghi; F. Cavanna; S. Centro; A. G. Cocco; R. Dolfini; A. Gigli Berzolari; C. Farnese; A. Fava; A. Ferrari; G. Fiorillo; D. Gibin; A. Guglielmi; G. Mannocchi; F. Mauri; A. Menegolli; G. Meng; C. Montanari; O. Palamara; L. Periale; A. Piazzoli; P. Picchi; F. Pietropaolo; A. Rappoldi; G. L. Raselli; C. Rubbia; P. Sala; G. Satta; F. Varanini; S. Ventura; C. Vignoli

2007-04-11T23:59:59.000Z

220

A long baseline RICH with a 27-kiloton water target and radiator for detection of neutrino oscillations  

SciTech Connect (OSTI)

A 27 kt water volume is investigated as a target for a long baseline neutrino beam from CERN to Gran Sasso. Charged secondaries from the neutrino interactions produce Cherenkov photons in water which are imaged as rings by a spherical mirror. The photon detector elements are 14 400 photomultipliers (PM`s) of 127 mm diameter or 3600 HPD`s of 250 mm diameter with single photon sensitivity. A coincidence signal of about 300 pixel elements in time with the SPS beam starts readout in bins of 1 ns over a period of 128 ns. Momentum, direction, and velocity of hadrons and mucons are determined from the width, center, and radius of the rings, respectively. Momentum is measured if multiple scattering dominates the ring width, as is the case for most of the particles of interest. Momentum, direction, and velocity of hadrons and muons are determined from the width, center, and radius of the rings, respectively. Momentum is measured if multiple scattering dominates the ring width, as is the case for most of the particles of interest. Momentum resolutions of 1-10%, mass resolutions of 5-50 MeV, and direction resolutions of < 1 mrad are achievable. Thresholds in water for muons, pions, kaons, and protons are 0.12, 0.16, 0.55, and 1.05 GeV/c, respectively. Electrons and gammas can be measured with energy resolution {sigma}{sub E}/E{approx}8.5%/{radical}E(GeV) and with direction resolution {approx} 1 mrad. The detector can be sited either inside a Gran Sasso tunnel or above ground because it is directional and the SPS beam is pulsed; thus the rejection of cosmic ray background is excellent.

Ypsilantis, T.; Seguinot, J.; Zichichi, A.

1997-01-01T23:59:59.000Z

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221

Neutron Scattering Facility for Characterization of CRESST and EURECA Detectors at mK Temperatures  

E-Print Network [OSTI]

CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) is an experiment located at the Gran Sasso underground laboratory and aimed at the direct detection of dark matter in the form of WIMPs. The setup has just completed a one year commissioning run in 2007 and is presently starting a physics run with an increased target mass. Scintillating $\\mathrm{CaWO_4}$ single crystals, operated at temperatures of a few millikelvin, are used as target to detect the tiny nuclear recoil induced by a WIMP. The powerful background identification and rejection of $\\alpha$, e$^{-}$ and $\\gamma$ events is realized via the simultaneous measurement of a phonon and a scintillation signal generated in the $\\mathrm{CaWO_4}$ crystal. However, neutrons could still be misidentified as a WIMP signature. Therefore, a detailed understanding of the individual recoil behaviour in terms of phonon generation and scintillation light emission due to scattering on Ca, O or W nuclei, respectively, is mandatory. The only setup which allows to perform such measurements at the operating temperature of the CRESST detectors has been installed at the Maier-Leibnitz-Accelerator Laboratory in Garching and is presently being commissioned. The design of this neutron scattering facility is such that it can also be used for other target materials, e.g. $\\mathrm{ZnWO_4}$, $\\mathrm{PbWO_4}$ and others as foreseen in the framework of the future multitarget tonne-scale experiment EURECA (European Underground Rare Event Calorimeter Array).

J. -C. Lanfranchi; C. Ciemniak; C. Coppi; F. von Feilitzsch; A. Gütlein; H. Hagn; C. Isaila; J. Jochum; M. Kimmerle; S. Pfister; W. Potzel; W. Rau; S. Roth; K. Rottler; C. Sailer; S. Scholl; I. Usherov; W. Westphal

2008-10-01T23:59:59.000Z

222

Cosmogenic Backgrounds in Borexino at 3800 m water-equivalent depth  

SciTech Connect (OSTI)

The solar neutrino experiment Borexino, which is located in the Gran Sasso underground laboratories, is in a unique position to study muon-induced backgrounds in an organic liquid scintillator. In this study, a large sample of cosmic muons is identified and tracked by a muon veto detector external to the liquid scintillator, and by the specific light patterns observed when muons cross the scintillator volume. The yield of muon-induced neutrons is found to be Y{sub n} = (3.10±0.11)·10{sup ?4} n/(?·(g/cm{sup 2})). The distance profile between the parent muon track and the neutron capture point has the average value ? = (81.5±2.7) cm. Additionally the yields of a number of cosmogenic radioisotopes are measured for {sup 12}N, {sup 12}B, {sup 8}He, {sup 9}C, {sup 9}Li, {sup 8}B, {sup 6}He, {sup 8}Li, {sup 11}Be, {sup 10}C and {sup 11}C. All results are compared with Monte Carlo simulation predictions using the FLUKA and GEANT4 packages. General agreement between data and simulation is observed for the cosmogenic production yields with a few exceptions, the most prominent case being {sup 11}C yield for which both codes return about 50% lower values. The predicted ?-n distance profile and the neutron multiplicity distribution are found to be overall consistent with data.

Bellini, G.; Avanzini, M. Buizza; Caccianiga, B.; D'Angelo, D. [Dipartimento di Fisica, Università degli Studi e INFN, Milano 20133 (Italy); Benziger, J. [Chemical Engineering Department, Princeton University, Princeton, NJ 08544 (United States); Bick, D. [University of Hamburg, Hamburg (Germany); Bonfini, G.; Cavalcante, P.; Fomenko, K. [INFN Laboratori Nazionali del Gran Sasso, Assergi 67010 (Italy); Bravo, D. [Physics Department, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 (United States); Cadonati, L. [Physics Department, University of Massachusetts, Amherst 01003 (United States); Calaprice, F.; Chavarria, A.; Galbiati, C. [Physics Department, Princeton University, Princeton, NJ 08544 (United States); Chepurnov, A. [Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics, Moscow 119234 (Russian Federation); Davini, S.; Empl, A. [Department of Physics, University of Houston, Houston, TX 77204 (United States); Derbin, A. [St. Petersburg Nuclear Physics Institute, Gatchina 188350 (Russian Federation); Etenko, A. [NRC Kurchatov Institute, Moscow 123182 (Russian Federation); Franco, D., E-mail: spokeperson-borex@lngs.infn.it [APC, Univ. Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs. de Paris, Sorbonne Paris Cité (France); and others

2013-08-01T23:59:59.000Z

223

Some Special Cases of Khintchine's Conjectures in Statistical Mechanics: Approximate Ergodicity of the Auto-Correlation Functions of an Assembly of Linearly Coupled Oscillators  

E-Print Network [OSTI]

We give Sir James Jeans's notion of 'normal state' a mathematically precise definition. We prove that normal cells of trajectories exist in the Hamiltonian heat-bath model of an assembly of linearly coupled oscillators that generates the Ornstein--Uhlenbeck process in the limit of an infinite number of degrees of freedom. This, in some special cases, verifies some far-reaching conjectures of Khintchine on the weak ergodicity of a dynamical system with a large number of degrees of freedom. In order to estimate the theoretical auto-correlation function of a time series from the sample auto-correlation function of one of its realisations, it is usually assumed without justification that the time series is ergodic. Khintchine's conjectures about dynamical systems with large numbers of degrees of freedom justifies, even in the absence of ergodicity, approximately the same conclusions. Para emplear el correlograma de los valores muestrales de un proceso estoc\\'astico para estimar su funci\\'on te\\'orica de autocorrelaci\\'on, por regla general se asume, sin justificaci\\'on, que el proceso es erg\\'odico. Pero en 1943, Khintchine conjetur\\'o proposiciones de gran importancia en este asunto, que justificar\\'i an una aproximaci\\'on a las mismas estimaciones a\\'un sin la ergodicidad del sistema. Mostraremos casos particulares de las conjeturas de Khintchine para asambleas de osciladores lineales.

Joseph F. Johnson

2011-08-16T23:59:59.000Z

224

A distributed acquisition system using the VME KAV30 single board computer in a VAXELN environment  

SciTech Connect (OSTI)

MACRO is a large area detector designed to search for rare phenomena in the cosmic radiation (GUT monopoles or supermassive charged penetrating particles), to study the penetrating cosmic ray muons, to detect neutrino bursts originated by gravitational stellar collapses in the galaxy and to perform a survey of cosmic point sources of high energy neutrinos. The detector, located at a depth of about 3,600 meters of water equivalent in the INFN Gran Sasso Laboratory (LNGS), has an acceptance of about 10,000 m[sup 2]sr for an isotropic flux of particles. It consists of plastic streamer tubes, liquid scintillation counters and track-etch detectors arranged in a modular structure, the basic element called ''supermodule'' having dimensions 12 x 12 x 5 m[sup 3]. Presently 6 supermodules are operative and have been taking data since June 1991. Here an acquisition system based on a network (Ethernet/DECNET) of KAV30 VAX processors is described. KAV30 is a VME single board computer based around rt-Vax 300 and running in VAXELN, a Digital Equipment software product for the development of dedicated, real time systems for VAX processors. A central VAX running under the VAX/VMS operating system is used as file server and as an interface of the acquisition system with respect to the user's world.

D'Antone, I.; Mandrioli, G.; Matteuzzi, P.; Pavesi, B.; Sanzani, G. (Univ. of Bologna (Italy)); Marini, A.; Ronga, F. (INFN Lab. Nazionali di Frascati (Italy)); Mancarella, G.; Surdo, A. (Univ. of Lecce (Italy))

1994-02-01T23:59:59.000Z

225

Search for 14.4 keV solar axions from M1 transition of Fe-57 with CUORE crystals  

E-Print Network [OSTI]

We report the results of a search for axions from the 14.4 keV M1 transition from Fe-57 in the core of the sun using the axio-electric e?ect in TeO2 bolometers. The detectors are 5x5x5 cm3 crystals operated at about 10 mK in a facility used to test bolometers for the CUORE experiment at the Laboratori Nazionali del Gran Sasso in Italy. An analysis of 43.65 kg d of data was made using a newly developed low energy trigger which was optimized to reduce the detectors energy threshold. An upper limit of 0.63 c kg-1 d-1 was established at 95% C.L.. From this value, a lower bound at 95% C.L. was placed on the Peccei-Quinn energy scale of fa >= 0.76 10**6 GeV for a value of S=0.55 for the flavor-singlet axial vector matrix element. Bounds are given for the interval 0.15 < S < 0.55.

The Cuore Collaboration; F. Alessandria; R. Ardito; D. R. Artusa; F. T. Avignone III; O. Azzolini; M. Balata; T. I. Banks; G. Bari; J. Beeman; F. Bellini; A. Bersani; M. Biassoni; T. Bloxham; C. Brofferio; C. Bucci; X. Z. Cai; L. Canonica; S. Capelli; L. Carbone; L. Cardani; M. Carrettoni; N. Casali; N. Chott; M. Clemenza; C. Cosmelli; O. Cremonesi; R. J. Creswick; I. Dafinei; A. Dally; V. Datskov; A. De Biasi; M. P. Decowski; M. M. Deninno; S. Di Domizio; M. L. di Vacri; L. Ejzak; R. Faccini; D. Q. Fang; H. A. Farach; E. Ferri; F. Ferroni; E. Fiorini; M. A. Franceschi; S. J. Freedman; B. K. Fujikawa; A. Giachero; L. Gironi; A. Giuliani; J. Goett; P. Gorla; C. Gotti; E. Guardincerri; T. D. Gutierrez; E. E. Haller; K. Han; K. M. Heeger; H. Z. Huang; R. Kadel; K. Kazkaz; G. Keppel; L. Kogler; Yu. G. Kolomensky; D. Lenz; Y. L. Li; C. Ligi; X. Liu; Y. G. Ma; C. Maiano; M. Maino; M. Martinez; R. H. Maruyama; N. Moggi; S. Morganti; T. Napolitano; S. Newman; S. Nisi; C. Nones; E. B. Norman; A. Nucciotti; F. Orio; D. Orlandi; J. L. Ouellet; M. Pallavicini; V. Palmieri; L. Pattavina; M. Pavan; M. Pedretti; G. Pessina; S. Pirro; E. Previtali; V. Rampazzo; F. Rimondi; C. Rosenfeld; C. Rusconi; S. Sangiorgio; N. D. Scielzo; M. Sisti; A. R. Smith; L. Taffarello; M. Tenconi; W. D. Tian; C. Tomei; S. Trentalange; G. Ventura; M. Vignati; B. S. Wang; H. W. Wang; C. A. Whitten Jr.; T. Wise; A. Woodcraft; L. Zanotti; C. Zarra; B. X. Zhu; S. Zucchelli

2013-04-26T23:59:59.000Z

226

Radioactive contamination of ZnWO4 crystal scintillators  

E-Print Network [OSTI]

The radioactive contamination of ZnWO4 crystal scintillators has been measured deep underground at the Gran Sasso National Laboratory (LNGS) of the INFN in Italy with a total exposure 3197 kg x h. Monte Carlo simulation, time-amplitude and pulse-shape analyses of the data have been applied to estimate the radioactive contamination of the ZnWO4 samples. One of the ZnWO4 crystals has also been tested by ultra-low background gamma spectrometry. The radioactive contaminations of the ZnWO4 samples do not exceed 0.002 -- 0.8 mBq/kg (depending on the radionuclide), the total alpha activity is in the range: 0.2 - 2 mBq/kg. Particular radioactivity, beta active 65Zn and alpha active 180W, has been detected. The effect of the re-crystallization on the radiopurity of the ZnWO4 crystal has been studied. The radioactive contamination of samples of the ceramic details of the set-ups used in the crystals growth has been checked by low background gamma spectrometry. A project scheme on further improvement of the radiopurity level of the ZnWO4 crystal scintillators is briefly addressed.

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; A. M. Dubovik; S. d'Angelo; E. N. Galashov; B. V. Grinyov; A. Incicchitti; V. V. Kobychev; M. Laubenstein; L. L. Nagornaya; F. Nozzoli; D. V. Poda; R. B. Podviyanuk; O. G. Polischuk; D. Prosperi; V. N. Shlegel; V. I. Tretyak; I. A. Tupitsyna; Ya. V. Vasiliev; Yu. Ya. Vostretsov

2010-09-05T23:59:59.000Z

227

Radioactive contamination of ZnWO4 crystal scintillators  

E-Print Network [OSTI]

The radioactive contamination of ZnWO4 crystal scintillators has been measured deep underground at the Gran Sasso National Laboratory (LNGS) of the INFN in Italy with a total exposure 3197 kg x h. Monte Carlo simulation, time-amplitude and pulse-shape analyses of the data have been applied to estimate the radioactive contamination of the ZnWO4 samples. One of the ZnWO4 crystals has also been tested by ultra-low background gamma spectrometry. The radioactive contaminations of the ZnWO4 samples do not exceed 0.002 â?? 0.8 mBq/kg (depending on the radionuclide), the total alpha activity is in the range: 0.2 - 2 mBq/kg. Particular radioactivity, beta active 65Zn and alpha active 180W, has been detected. The effect of the re-crystallization on the radiopurity of the ZnWO4 crystal has been studied. The radioactive contamination of samples of the ceramic details of the set-ups used in the crystals growth has been checked by low background gamma spectrometry. A project scheme on further improvement of the radiopur...

Belli, P; Cappella, F; Cerulli, R; Danevich, F A; Dubovik, A M; d'Angelo, S; Galashov, E N; Grinyov, B V; Incicchitti, A; Kobychev, V V; Laubenstein, M; Nagornaya, L L; Nozzoli, F; Poda, D V; Podviyanuk, R B; Polischuk, O G; Prosperi, D; Shlegel, V N; Tretyak, V I; Tupitsyna, I A; Vasiliev, Ya V; Vostretsov, Yu Ya

2010-01-01T23:59:59.000Z

228

Low background detector with enriched 116CdWO4 crystal scintillators to search for double beta decay of 116Cd  

E-Print Network [OSTI]

A cadmium tungstate crystal boule enriched in $^{116}$Cd to 82% with mass of 1868 g was grown by the low-thermal-gradient Czochralski technique. The isotopic composition of cadmium and the trace contamination of the crystal were estimated by High Resolution Inductively Coupled Plasma Mass-Spectrometry. The crystal scintillators produced from the boule were subjected to characterization that included measurements of transmittance and energy resolution. A low background scintillation detector with two $^{116}$CdWO$_4$ crystal scintillators (586 g and 589 g) was developed. The detector was running over 1727 h deep underground at the Gran Sasso National Laboratories of the INFN (Italy), which allowed to estimate the radioactive contamination of the enriched crystal scintillators. The radiopurity of a third $^{116}$CdWO$_4$ sample (326 g) was tested with the help of ultra-low background high purity germanium $\\gamma$ detector. Monte Carlo simulations of double $\\beta$ processes in $^{116}$Cd were used to estimate the sensitivity of an experiment to search for double $\\beta$ decay of $^{116}$Cd.

A. S. Barabash; P. Belli; R. Bernabei; R. S. Boiko; F. Cappella; V. Caracciolo; D. M. Chernyak; R. Cerulli; F. A. Danevich; M. L. Di Vacri; A. E. Dossovitskiy; E. N. Galashov; A. Incicchitti; V. V. Kobychev; S. I. Konovalov; G. P. Kovtun; V. M. Kudovbenko; M. Laubenstein; A. L. Mikhlin; S. Nisi; D. V. Poda; R. B. Podviyanuk; O. G. Polischuk; A. P. Shcherban; V. N. Shlegel; D. A. Solopikhin; Yu. G. Stenin; V. I. Tretyak; V. I. Umatov; Ya. V. Vasiliev; V. D. Virich

2011-08-13T23:59:59.000Z

229

Radiopurity of CaWO$_4$ Crystals for Direct Dark Matter Search with CRESST and EURECA  

E-Print Network [OSTI]

The direct dark matter search experiment CRESST uses scintillating CaWO$_4$ single crystals as targets for possible WIMP scatterings. An intrinsic radioactive contamination of the crystals as low as possible is crucial for the sensitivity of the detectors. In the past CaWO$_4$ crystals operated in CRESST were produced by institutes in Russia and the Ukraine. Since 2011 CaWO$_4$ crystals have also been grown at the crystal laboratory of the Technische Universit\\"at M\\"unchen (TUM) to better meet the requirements of CRESST and of the future tonne-scale multi-material experiment EURECA. The radiopurity of the raw materials and of first TUM-grown crystals was measured by ultra-low background $\\gamma$-spectrometry. Two TUM-grown crystals were also operated as low-temperature detectors at a test setup in the Gran Sasso underground laboratory. These measurements were used to determine the crystals' intrinsic $\\alpha$-activities which were compared to those of crystals produced at other institutes. The total $\\alpha$...

Münster, A; Angloher, G; Bento, A; Bucci, C; Canonica, L; Erb, A; Feilitzsch, F v; Gorla, P; Gütlein, A; Hauff, D; Jochum, J; Kraus, H; Lanfranchi, J -C; Laubenstein, M; Loebell, J; Ortigoza, Y; Petricca, F; Potzel, W; Pröbst, F; Puimedon, J; Reindl, F; Roth, S; Rottler, K; Sailer, C; Schäffner, K; Schieck, J; Scholl, S; Schönert, S; Seidel, W; Stodolsky, L; Strandhagen, C; Strauss, R; Tanzke, A; Uffinger, M; Ulrich, A; Usherov, I; Wawoczny, S; Willers, M; Wüstrich, M; Zöller, A

2014-01-01T23:59:59.000Z

230

FISICA: The Florida Image Slicer for Infrared Cosmology & Astrophysics  

E-Print Network [OSTI]

We report on the design, fabrication, and on-sky performance of the Florida Image Slicer for Infrared Cosmology and Astrophysics (FISICA)- a fully-cryogenic all-reflective image-slicing integral field unit for the FLAMINGOS near-infrared spectrograph. Designed to accept input beams near f/15, FISICA with FLAMINGOS provides R \\sim 1300 spectra over a 16x33-arcsec field-of-view on the Cassegrain f/15 focus of the KPNO 4-meter telescope, or a 6x12-arcsec field-of-view on the Nasmyth or Bent Cassegrain foci of the Gran Telescopio Canarias 10.4-meter telescope. FISICA accomplishes this using three sets of "monolithic" powered mirror arrays, each with 22 mirrored surfaces cut into a single piece of aluminum. We review the optical and opto-mechanical design and fabrication of FISICA, as well as laboratory test results for FISICA integrated with the FLAMINGOS instrument. Finally, we present performance results from observations with FISICA at the KPNO 4-m telescope and comparisons of FISICA performance to other available IFUs on 4-m to 8-m-class telescopes.

Stephen Eikenberry; S. Nicholas Raines; Nicolas Gruel; Richard Elston; Rafael Guzman; Jeff Julian; Glenn Boreman; Paul Glenn; Greg Hull-Allen; Jeff Hoffmann; Michael Rodgers; Kevin Thompson; Scott Flint; Lovell Comstock; Bruce Myrick

2006-04-27T23:59:59.000Z

231

Possible Origin Of The Neutrino Speed Anomaly Reported By OPERA  

E-Print Network [OSTI]

Recently the OPERA collaboration reported a measurement of a superluminal speed of muon neutrinos travelling through the Earth's crust between their production site at CERN and their detection site under Gran Sasso, ~730 km away. The measurement was based on the assumption that the pulse shape of the neutrinos from the decay of parent mesons produced in proton-target collisions is the same as that of the incident protons. Here we argue that the effective column density of the target along the beam direction decreases with time during the 10.5 microseconds duration of the proton pulse. This is because of the thermal expansion and expulsion of target material along the beam by the energy-momentum deposition during the 10.5 microseconds pulse. The progresive reduction in the effective column density during the pulse decreases the neutrino production rate per incident proton. It could have advanced the mean production time of the detected neutrinos relative to that calculated from the proton pulse-shape, by an am...

Dado, Shlomo

2011-01-01T23:59:59.000Z

232

Possible Origin Of The Neutrino Speed Anomaly Reported By OPERA  

E-Print Network [OSTI]

Recently the OPERA collaboration reported a measurement of a superluminal speed of muon neutrinos travelling through the Earth's crust between their production site at CERN and their detection site under Gran Sasso, ~730 km away. The measurement was based on the assumption that the pulse shape of the neutrinos from the decay of parent mesons produced in proton-target collisions is the same as that of the incident protons. Here we argue that the effective column density of the target along the beam direction decreases with time during the 10.5 microseconds duration of the proton pulse. This is because of the thermal expansion and expulsion of target material along the beam by the energy-momentum deposition during the 10.5 microseconds pulse. The progresive reduction in the effective column density during the pulse decreases the neutrino production rate per incident proton. It could have advanced the mean production time of the detected neutrinos relative to that calculated from the proton pulse-shape, by an amount comparable to the measured neutrino lead time (60.7+/-6.9(stat) +/-7.4(sys) ns. This explanation implies that the planned measurements by OPERA of the speed of neutrinos produced in much shorter (a few ns) pulses, should yield a speed consistent with the speed of light in free space.

Shlomo Dado; Arnon Dar

2011-10-28T23:59:59.000Z

233

Neutron-induced background by an alpha-beam incident on a deuterium gas target and its implications for the study of the 2H(alpha,gamma)6Li reaction at LUNA  

E-Print Network [OSTI]

The production of the stable isotope Li-6 in standard Big Bang nucleosynthesis has recently attracted much interest. Recent observations in metal-poor stars suggest that a cosmological Li-6 plateau may exist. If true, this plateau would come in addition to the well-known Spite plateau of Li-7 abundances and would point to a predominantly primordial origin of Li-6, contrary to the results of standard Big Bang nucleosynthesis calculations. Therefore, the nuclear physics underlying Big Bang Li-6 production must be revisited. The main production channel for Li-6 in the Big Bang is the 2H(alpha,gamma)6Li reaction. The present work reports on neutron-induced effects in a high-purity germanium detector that were encountered in a new study of this reaction. In the experiment, an {\\alpha}-beam from the underground accelerator LUNA in Gran Sasso, Italy, and a windowless deuterium gas target are used. A low neutron flux is induced by energetic deuterons from elastic scattering and, subsequently, the 2H(d,n)3He reaction. Due to the ultra-low laboratory neutron background at LUNA, the effect of this weak flux of 2-3 MeV neutrons on well-shielded high-purity germanium detectors has been studied in detail. Data have been taken at 280 and 400 keV alpha-beam energy and for comparison also using an americium-beryllium neutron source.

M. Anders; D. Trezzi; A. Bellini; M. Aliotta; D. Bemmerer; C. Broggini; A. Caciolli; H. Costantini; P. Corvisiero; T. Davinson; Z. Elekes; M. Erhard; A. Formicola; Zs. Fülöp; G. Gervino; A. Guglielmetti; C. Gustavino; Gy. Gyürky; M. Junker; A. Lemut; M. Marta; C. Mazzocchi; R. Menegazzo; P. Prati; C. Rossi Alvarez; D. Scott; E. Somorjai; O. Straniero; T. Szücs

2013-01-30T23:59:59.000Z

234

A new study of the $^{22}$Ne(p,$?$)$^{23}$Na reaction deep underground: Feasibility, setup, and first observation of the 186 keV resonance  

E-Print Network [OSTI]

The $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction takes part in the neon-sodium cycle of hydrogen burning. This cycle is active in asymptotic giant branch stars as well as in novae and contributes to the nucleosythesis of neon and sodium isotopes. In order to reduce the uncertainties in the predicted nucleosynthesis yields, new experimental efforts to measure the $^{22}$Ne(p,$\\gamma$)$^{23}$Na cross section directly at the astrophysically relevant energies are needed. In the present work, a feasibility study for a $^{22}$Ne(p,$\\gamma$)$^{23}$Na experiment at the Laboratory for Underground Nuclear Astrophysics (LUNA) 400\\,kV accelerator deep underground in the Gran Sasso laboratory, Italy, is reported. The ion beam induced $\\gamma$-ray background has been studied. The feasibility study led to the first observation of the $E_{\\rm p}$ = 186\\,keV resonance in a direct experiment. An experimental lower limit of 0.12\\,$\\times$\\,10$^{-6}$\\,eV has been obtained for the resonance strength. Informed by the feasibility study, a dedicated experimental setup for the $^{22}$Ne(p,$\\gamma$)$^{23}$Na experiment has been developed. The new setup has been characterized by a study of the temperature and pressure profiles. The beam heating effect that reduces the effective neon gas density due to the heating by the incident proton beam has been studied using the resonance scan technique, and the size of this effect has been determined for a neon gas target.

F. Cavanna; R. Depalo; M. -L. Menzel; M. Aliotta; M. Anders; D. Bemmerer; C. Broggini; C. G. Bruno; A. Caciolli; P. Corvisiero; T. Davinson; A. di Leva; Z. Elekes; F. Ferraro; A. Formicola; Zs. Fülöp; G. Gervino; A. Guglielmetti; C. Gustavino; Gy. Gyürky; G. Imbriani; M. Junker; R. Menegazzo; P. Prati; C. Rossi Alvarez; D. A. Scott; E. Somorjai; O. Straniero; F. Strieder; T. Szücs; D. Trezzi

2014-11-25T23:59:59.000Z

235

Operation of a GERDA Phase I prototype detector in liquid argon and nitrogen  

E-Print Network [OSTI]

The GERDA (GERmanium Detector Array) experiment aiming to search for the neutrinoless double beta decay of 76Ge at the Laboratori Nazionali Del Gran Sasso (LNGS), Italy, will operate bare enriched high-purity germanium (HPGe) detectors in liquid argon. GERDA Phase I will use the enriched diodes from the previous Heidelberg-Moscow (HdM) and IGEX experiments. With the HPGe detectors mounted in a low-mass holder, GERDA aims at an excellent energy resolution and extremely low background. The goal is to check the claim for the neutrinoless double beta decay evidence in the HdM 76Ge experiment within one year of data taking. Before dismounting the enriched diodes from their cryostat, the performance parameters of the HdM and the IGEX detectors have been measured. The diodes have been removed from their cryostats, their dimensions measured and they have been put under va-cuum in a transportation container. They are now being refurbished for GERDA Phase I at Canberra Semiconductor NV. Before operating the enriched diodes, a non-enriched HPGe p-type detector mounted in a low-mass holder is operated in the liquid argon test facility of the GERDA Detector Laboratory (GDL) at LNGS. Since January 2006, the testing of the prototype detector is being carried out in the GDL as well as at the site of the detector manufacturer.

M. Barnabé Heider; A. Bakalyarov; L. Bezrukov; C. Cattadori; O. Chkvorets; K. Gusev; M. Hult; I. Kirpichnikov; V. Lebedev; G. Marissens; P. Peiffer; S. Schönert; M. Shirchenko; A. Smolnikov; A. Vasenko; S. Vasiliev; S. Zhukov

2008-12-20T23:59:59.000Z

236

Geodesic Particle Paths Inside a Nonrotating, Homogeneous, Spherical Body  

E-Print Network [OSTI]

Proceeding from a solution of field equations that are improved versions of Einstein's nonvacuum gravitational field equations one is able to calculate precisely the trajectories of particles traveling inside a nonrotating, homogeneous, spherical body. Application of the results to the conditions of recent measurements of neutrino flight times between a source point A at CERN's European Laboratory for Particle Physics and a point B in either of two detectors (ICARUS or OPERA) at LNGS (Laboratori Nazionale del Gran Sasso), separated by a euclidean distance d(A,B) = 731 km, predicts for the flight time from A to B of a 2 eV neutrino launched with energy 17 GeV, as measured by a clock at B synchronized to a similar clock at A, approximately d/c + 9.3 x 10^{-16} sec. But as measured by inertial observers along the path the predicted flight time is approximately d/c - 2.6 x 10^{-9} sec and the predicted path length is approximately d - 8.4 x 10^{-7} m, which yields c + 321 m/sec for the predicted average inertially referenced speed of the neutrino from A to B.

Homer G. Ellis

2012-10-18T23:59:59.000Z

237

Experimental and theoretical high energy physics research. [UCLA  

SciTech Connect (OSTI)

Progress in the various components of the UCLA High-Energy Physics Research program is summarized, including some representative figures and lists of resulting presentations and published papers. Principal efforts were directed at the following: (I) UCLA hadronization model, PEP4/9 e{sup +}e{sup {minus}} analysis, {bar P} decay; (II) ICARUS and astroparticle physics (physics goals, technical progress on electronics, data acquisition, and detector performance, long baseline neutrino beam from CERN to the Gran Sasso and ICARUS, future ICARUS program, and WIMP experiment with xenon), B physics with hadron beams and colliders, high-energy collider physics, and the {phi} factory project; (III) theoretical high-energy physics; (IV) H dibaryon search, search for K{sub L}{sup 0} {yields} {pi}{sup 0}{gamma}{gamma} and {pi}{sup 0}{nu}{bar {nu}}, and detector design and construction for the FNAL-KTeV project; (V) UCLA participation in the experiment CDF at Fermilab; and (VI) VLPC/scintillating fiber R D.

Not Available

1992-01-01T23:59:59.000Z

238

Experimental and theoretical high energy physics research. Annual progress report, September 1, 1991--September 31, 1992  

SciTech Connect (OSTI)

Progress in the various components of the UCLA High-Energy Physics Research program is summarized, including some representative figures and lists of resulting presentations and published papers. Principal efforts were directed at the following: (I) UCLA hadronization model, PEP4/9 e{sup +}e{sup {minus}} analysis, {bar P} decay; (II) ICARUS and astroparticle physics (physics goals, technical progress on electronics, data acquisition, and detector performance, long baseline neutrino beam from CERN to the Gran Sasso and ICARUS, future ICARUS program, and WIMP experiment with xenon), B physics with hadron beams and colliders, high-energy collider physics, and the {phi} factory project; (III) theoretical high-energy physics; (IV) H dibaryon search, search for K{sub L}{sup 0} {yields} {pi}{sup 0}{gamma}{gamma} and {pi}{sup 0}{nu}{bar {nu}}, and detector design and construction for the FNAL-KTeV project; (V) UCLA participation in the experiment CDF at Fermilab; and (VI) VLPC/scintillating fiber R & D.

Not Available

1992-10-01T23:59:59.000Z

239

Purification of lanthanides for double beta decay experiments  

SciTech Connect (OSTI)

There are several potentially double beta active isotopes among the lanthanide elements. However, even high purity grade lanthanide compounds contain {sup 238}U, {sup 226}Ra and {sup 232,228}Th typically on the level of ? (0.1 - 1) Bq/kg. The liquid-liquid extraction technique was used to remove traces of U, Ra and Th from CeO{sub 2}, Nd{sub 2}O{sub 3} and Gd{sub 2}O{sub 3}. The radioactive contamination of the samples before and after the purification was tested by using ultra-low-background HPGe ? spectrometry at the underground Gran Sasso National Laboratories of the INFN (Italy). After the purification the radioactive contamination of gadolinium oxide by Ra and Th was decreased at least one order of magnitude. The efficiency of the approach to purify cerium oxide from Ra was on same level, while the radioactive contamination of neodymium sample before and after the purification is below the sensitivity of analytical methods. The purification method is much less efficient for chemically very similar radioactive elements like lanthanum, lutetium and actinium. R and D of the methods to remove the pollutions with improved efficiency is in progress.

Polischuk, O. G. [Institute for Nuclear Research, MSP 03680 Kyiv, Ukraine and INFN, Section of Rome, La Sapienza, I-00185 Rome (Italy)] [Institute for Nuclear Research, MSP 03680 Kyiv, Ukraine and INFN, Section of Rome, La Sapienza, I-00185 Rome (Italy); Barabash, A. S. [Institute of Theoretical and Experimental Physics, 117259 Moscow (Russian Federation)] [Institute of Theoretical and Experimental Physics, 117259 Moscow (Russian Federation); Belli, P. [INFN, Section of Rome Tor Vergata, I-00133 Rome (Italy)] [INFN, Section of Rome Tor Vergata, I-00133 Rome (Italy); Bernabei, R. [INFN, Section of Rome Tor Vergata, I-00133 Rome, Italy and Department of Physics, University of Rome Tor Vergata, I-00133 Rome (Italy)] [INFN, Section of Rome Tor Vergata, I-00133 Rome, Italy and Department of Physics, University of Rome Tor Vergata, I-00133 Rome (Italy); Boiko, R. S.; Danevich, F. A.; Mokina, V. M.; Poda, D. V.; Tretyak, V. I. [Institute for Nuclear Research, MSP 03680 Kyiv (Ukraine)] [Institute for Nuclear Research, MSP 03680 Kyiv (Ukraine); Cappella, F.; Incicchitti, A. [INFN, Section of Rome La Sapienza, I-00185 Rome, Italy and Department of Physics, University of Rome La Sapienza, I-00185 Rome (Italy)] [INFN, Section of Rome La Sapienza, I-00185 Rome, Italy and Department of Physics, University of Rome La Sapienza, I-00185 Rome (Italy); Cerulli, R.; Laubenstein, M.; Nisi, S. [INFN, Gran Sasso National Laboratories, I-67100 Assergi (Aq) (Italy)] [INFN, Gran Sasso National Laboratories, I-67100 Assergi (Aq) (Italy)

2013-08-08T23:59:59.000Z

240

New experimental study of low-energy (p,gamma) resonances in magnesium isotopes  

E-Print Network [OSTI]

Proton captures on Mg isotopes play an important role in the Mg-Al cycle active in stellar H shell burning. In particular, the strengths of low-energy resonances with E < 200 keV in 25Mg(p,gamma)26Al determine the production of 26Al and a precise knowledge of these nuclear data is highly desirable. Absolute measurements at such low-energies are often very difficult and hampered by gamma-ray background as well as changing target stoichiometry during the measurements. The latter problem can be partly avoided using higher energy resonances of the same reaction as a normalization reference. Hence the parameters of suitable resonances have to be studied with adequate precision. In the present work we report on new measurements of the resonance strengths omega_gamma of the E = 214, 304, and 326 keV resonances in the reactions 24Mg(p,gamma)25Al, 25Mg(p,gamma)26Al, and 26Mg(p,gamma)27Al, respectively. These studies were performed at the LUNA facility in the Gran Sasso underground laboratory using multiple experimental techniques and provided results with a higher accuracy than previously achieved.

B. Limata; F. Strieder; A. Formicola; G. Imbriani; M. Junker; H. W. Becker; D. Bemmerer; A. Best; R. Bonetti; C. Broggini; A. Caciolli; P. Corvisiero; H. Costantini; A. DiLeva; Z. Elekes; Zs. Fülöp; G. Gervino; A. Guglielmetti; C. Gustavino; Gy. Gyürky; A. Lemut; M. Marta; C. Mazzocchi; R. Menegazzo; P. Prati; V. Roca; C. Rolfs; C. Rossi Alvarez; C. Salvo; E. Somorjai; O. Straniero; F. Terrasi; H. -P. Trautvetter

2010-06-28T23:59:59.000Z

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241

Experiences and prospects of nuclear astrophysics in underground laboratories  

SciTech Connect (OSTI)

Impressive progress has been made in the course the last decades in understanding astrophysical objects. Increasing precision of nuclear physics data has contributed significantly to this success, but now a better understanding of several important findings is frequently limited by uncertainties related to the available nuclear physics data. Consequently it is desirable to improve significantly the quality of these data. An important step towards higher precision is an excellent signal to background ratio of the data. Placing an accelerator facility inside an underground laboratory reducing the cosmic ray induced background by six orders of magnitude is a powerful method to reach this goal, even though careful reduction of environmental and beam induced background must still be considered. Experience in the field of underground nuclear astrophysics has been gained since 20 years due to the pioneering work of the LUNA Collaboration (Laboratory for Underground Nuclear Astrophysics) operating inside the underground laboratories of the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. Based on the success of this work presently also several other projects for underground laboratories dedicated to nuclear astrophysics are being pursued worldwide. This contribution will give a survey of the past experience in underground nuclear astrophysics as well as an outlook on future developments.

Junker, M. [INFN - Laboratori Nazionali del Gran Sasso, Via Acitelli, 22, 67100 L'Aquila, Località Assergi (Italy)

2014-05-09T23:59:59.000Z

242

First observation of {alpha} decay of {sup 190}Pt to the first excited level (E{sub exc}=137.2 keV) of {sup 186}Os  

SciTech Connect (OSTI)

The {alpha} decays of naturally occurring platinum isotopes, which are accompanied by the emission of {gamma} quanta, have been searched for deep underground (3600 m water equivalent) at the Gran Sasso National Laboratories of the INFN (Italy). A sample of Pt with a mass of 42.5 g and a natural isotopic composition has been measured with a low background HP Ge detector (468 cm{sup 3}) during 1815 h. The {alpha} decay of {sup 190}Pt to the first excited level of {sup 186}Os (J{sup {pi}}=2{sup +}, E{sub exc}=137.2 keV) has been observed for the first time, with the half-life determined as T{sub 1/2}=2.6{sub -0.3}{sup +0.4}(stat.){+-}0.6(syst.)x10{sup 14} yr. The T{sub 1/2} limits for the {alpha} decays of other Pt isotopes have been determined at the level of T{sub 1/2}{approx_equal}10{sup 16}-10{sup 20} yr. These limits have been set for the first time or they are better than those known from earlier experiments.

Belli, P. [INFN, Sezione di Roma Tor Vergata, I-00133 Rome (Italy); Bernabei, R. [INFN, Sezione di Roma Tor Vergata, I-00133 Rome (Italy); Dipartimento di Fisica, Universita di Roma Tor Vergata, I-00133 Rome (Italy); Cappella, F. [INFN, Sezione di Roma La Sapienza, I-00185 Rome (Italy); Dipartimento di Fisica, Universita di Roma La Sapienza, I-00185 Rome (Italy); Cerulli, R.; Laubenstein, M.; Nisi, S. [INFN, Laboratori Nazionali del Gran Sasso, 67010 Assergi (AQ) (Italy); Danevich, F. A.; Nagorny, S. S.; Polischuk, O. G.; Tretyak, V. I. [Institute for Nuclear Research, MSP 03680 Kyiv (Ukraine); Incicchitti, A. [INFN, Sezione di Roma La Sapienza, I-00185 Rome (Italy)

2011-03-15T23:59:59.000Z

243

Sensitivity of CUORE to Neutrinoless Double-Beta Decay  

SciTech Connect (OSTI)

In this paper, we study the sensitivity of CUORE, a bolometric double-beta decay experiment under construction at the Laboratori Nazionali del Gran Sasso in Italy. Two approaches to the computation of experimental sensitivity are discussed and compared, and the formulas and parameters used in the sensitivity estimates are provided. Assuming a background rate of 10{sup -2} cts/(keV kg y), we find that, after 5 years of live time, CUORE will have a 1#27;{sigma} sensitivity to the neutrinoless double-beta decay half-life of {caret T{sup 0{nu}}{sub 1/2}}(1{sigma}#27;) = 1.6x#2;10{sup 26} y and thus a potential to probe the effective Majorana neutrino mass down to 41-95 meV; the sensitivity at 1.64{sigma}#27;, which corresponds to 90% C.L., will be {caret T{sup 0{nu}}{sub 1/2}(1.64{sigma}#27;}) = 9.5x10{sup 25} y. This range is compared with the claim of observation of neutrinoless double-beta decay in {sup 76}Ge and the preferred range in the neutrino mass parameter space from oscillation results.

CUORE; Alessandria, F.; Andreotti, E.; Ardito, R.; Arnaboldi, C.; Avignone III, F. T.; Balata, M.; Bandac, I.; Banks, T. I.; Bari, G.; Beeman, J.; Bellini, F.; Bersani, A.; Biassoni, M.; Bloxham, T.; Brofferio, C.; Bryant, A.; Bucci, C.; Cai, X. Z.; Canonica, L.; Capelli, S.; Carbone, L.; Cardani, L.; Carrettoni, M.; Casali, N.; Chott, N.; Clemenza, M.; Cosmelli, C.; Cremonesi, O.; Creswick, R. J.; Dafinei, I.; Dally, A.; Biasi, A. De; Decowski, M. P.; Deninno, M. M.; Waard, A. de; Domizio, S. Di; Ejzak, L.; Faccini, R.; Fang, D. Q.; Farach, H. A.; Ferri, E.; Ferroni, F.; Fiorini, E.; Foggetta, L.; Franceschi, M. A.; Freedman, S. J.; Frossati, G.; Fujikawa, B. K.; Giachero, A.; Gironi, L.; Giuliani, A.; Gorla, P.; Gotti, C.; Guardincerri, E.; Gutierrez, T. D.; Haller, E. E.; Han, K.; Heeger, K. M.; Huang, H. Z.; Ichimura, K.; Kadel, R.; Kazkaz, K.; Keppel, G.; Kogler, L.; Kolomensky, Yu. G.; Kraft, S.; Lenz, D.; Li, Y. L.; Liu, X.; Longo, E.; Ma, Y. G.; Maiano, C.; Maier, G.; Maino, M.; Mancini, C.; Martinez, C.; Martinez, M.; Maruyama, R. H.; Moggi, N.; Morganti, S.; Napolitano, T.; Newman, S.; Nisi, S.; Nones, C.; Norman, E. B.; Nucciotti, A.; Orio, F.; Orlandi, D.; Ouellet, J. L.; Pallavicini, M.; Palmieri, V.; Pattavina, L.; Pavan, M.; Pedretti, M.; Pessina, G.; Pirro, S.; Previtali, E.; Rampazzo, V.; Rimondi, F.; Rosenfeld, C.; Rusconi, C.; Salvioni, C.; Sangiorgio, S.; Schaeffer, D.; Scielzo, N. D.; Sisti, M.; Smith, A. R.; Stivanello, F.; Taffarello, L.; Terenziani, G.; Tian, W. D.; Tomei, C.; Trentalange, S.; Ventura, G.; Vignati, M.; Wang, B. S.; Wang, H. W.; Whitten Jr., C. A.; Wise, T.; Woodcraft, A.; Xu, N.; Zanotti, L.; Zarra, C.; Zhu, B. X.; Zucchelli, S.

2011-11-23T23:59:59.000Z

244

GERDA phase II detectors: Behind the production and characterisation at low background conditions  

SciTech Connect (OSTI)

The low background GERmanium Detector Array (GERDA) at Laboratori Nazionali del Gran Sasso (LNGS) is designed to search for the rare neutrinoless double beta decay (0???) in {sup 76}Ge. Bare germanium diodes are operated in liquid argon which is used as coolant, as passive and soon active as well shield against external radiation. Currently, Phase I of the experiment is running using ?15 kg of co-axial High Purity Germanium diodes. In order to increase the sensitivity of the experiment 30 Broad Energy Germanium (BEGe) diodes will be added within 2013. This presentation reviews the production chain of the new BEGe detectors from isotopic enrichment to diode production and testing. As demonstrated all steps were carefully planned in order to minimize the exposure of the enriched germanium to cosmic radiation. Following this premise, acceptance and characterisation measurement of the newly produced diodes have been performed within the HEROICA project in the Belgian underground laboratory HADES close to the diode manufacturer. The test program and the results from a subset of the recently terminated GERDA Phase II BEGe survey will be presented.

Maneschg, Werner [Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany)] [Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany); Collaboration: GERDA Collaboration; and others

2013-08-08T23:59:59.000Z

245

Prompt Gamma Rays in {sup 77}Ge after Neutron Capture on {sup 76}Ge  

SciTech Connect (OSTI)

The observation of neutrinoless double beta decay would be proof of the Majorana nature of the neutrino. Half-lives for these decays are very long (for {sup 76}Ge:>10{sup 25} y), so background reduction and rejection is the major task for double beta experiments. The GERDA (GERmanium Detector Array) experiment at the Gran Sasso Laboratory of the INFN (LNGS) searches for neutrinoless double beta decay of {sup 76}Ge. The isotope {sup 76}Ge is an ideal candidate because it can be used as source and detector at the same time. A large remaining contribution to the background arises from the prompt gamma cascade after neutron capture by {sup 76}Ge followed by {beta}{sup -}-decay of {sup 77}Ge. Since the prompt gamma decay scheme is poorly known, measurements with isotopically enriched Germanium samples were carried out at the PGAA facility at the research reactor FRM II (Munich). With the known prompt gamma spectrum it will be possible to improve the overall veto efficiency of the GERDA experiment.

Meierhofer, Georg; Grabmayr, Peter; Jochum, Josef [Physikalisches Institut, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 14, 72076 Tuebingen (Germany); Canella, Lea [Institut fuer Radiochemie, Technische Universitaet Muenchen, Walther-Meissner-Str. 3, 85748 Garching (Germany); Jolie, Jan; Kudejova, Petra; Warr, Nigel [Institut fuer Kernphysik, Universitaet zu Koeln, Zuelpicher Str. 77, 50937 Cologne (Germany)

2009-01-28T23:59:59.000Z

246

A measurement of the 2 neutrino double beta decay rate of Te-130 in the CUORICINO experiment  

SciTech Connect (OSTI)

CUORICINO was a cryogenic bolometer experiment designed to search for neutrinoless double beta decay and other rare processes, including double beta decay with two neutrinos (2{nu}{beta}{beta}). The experiment was located at Laboratori Nazionali del Gran Sasso and ran for a period of about 5 years, from 2003 to 2008. The detector consisted of an array of 62 TeO{sub 2} crystals arranged in a tower and operated at a temperature of #24;10 mK. Events depositing energy in the detectors, such as radioactive decays or impinging particles, produced thermal pulses in the crystals which were read out using sensitive thermistors. The experiment included 4 enriched crystals, 2 enriched with {sup 130}Te and 2 with {sup 128}Te, in order to aid in the measurement of the 2{nu}{beta}{beta} rate. The enriched crystals contained a total of #24;350 g {sup 130}Te. The 128-enriched (130-depleted) crystals were used as background monitors, so that the shared backgrounds could be subtracted from the energy spectrum of the 130- enriched crystals. Residual backgrounds in the subtracted spectrum were fit using spectra generated by Monte-Carlo simulations of natural radioactive contaminants located in and on the crystals. The 2{nu}{beta}{beta} half-life was measured to be T{sup 2{nu}}{sub 1/2} = [9.81{+-} #6;0.96(stat){+-} 0.49(syst)]#2;x10{sup 20} y.

Kogler, Laura

2011-11-03T23:59:59.000Z

247

The nuclear and extended infrared emission of the Seyfert galaxy NGC 2992 and the interacting system Arp 245  

E-Print Network [OSTI]

We present subarcsecond resolution infrared (IR) imaging and mid-IR spectroscopic observations of the Seyfert 1.9 galaxy NGC 2992, obtained with the Gemini North Telescope and the Gran Telescopio CANARIAS (GTC). The N-band image reveals faint extended emission out to ~3 kpc, and the PAH features detected in the GTC/CanariCam 7.5-13 micron spectrum indicate that the bulk of this extended emission is dust heated by star formation. We also report arcsecond resolution MIR and far-IR imaging of the interacting system Arp 245, taken with the Spitzer Space Telescope and the Herschel Space Observatory. Using these data, we obtain nuclear fluxes using different methods and find that we can only recover the nuclear fluxes obtained from the subarcsecond data at 20-25 micron, where the AGN emission dominates. We fitted the nuclear IR spectral energy distribution of NGC 2992, including the GTC/CanariCam nuclear spectrum (~50 pc), with clumpy torus models. We then used the best-fitting torus model to decompose the Spitzer/...

García-Bernete, I; Acosta-Pulido, J A; Alonso-Herrero, A; Sánchez-Portal, M; Castillo, M; Pereira-Santaella, M; Esquej, P; González-Martín, O; Díaz-Santos, T; Roche, P; Fisher, S; Povi?, M; García, A M Pérez; Valtchanov, I; Packham, C; Levenson, N A

2015-01-01T23:59:59.000Z

248

A New Limit on the Neutrinoless DBD of 130Te  

E-Print Network [OSTI]

We report the present results of CUORICINO a cryogenic experiment on neutrinoless double beta decay (DBD) of 130Te consisting of an array of 62 crystals of TeO2 with a total active mass of 40.7 kg. The array is framed inside of a dilution refrigerator, heavily shielded against environmental radioactivity and high-energy neutrons, and operated at a temperature of ~8 mK in the Gran Sasso Underground Laboratory. Temperature pulses induced by particle interacting in the crystals are recorded and measured by means of Neutron Transmutation Doped thermistors. The gain of each bolometer is stabilized with voltage pulses developed by a high stability pulse generator across heater resistors put in thermal contact with the absorber. The calibration is performed by means of two thoriated wires routinely inserted in the set-up. No evidence for a peak indicating neutrinoless DBD of 130Te is detected and a 90% C.L. lower limit of 1.8E24 years is set for the lifetime of this process. Taking largely into account the uncertainties in the theoretical values of nuclear matrix elements, this implies an upper boud on the effective mass of the electron neutrino ranging from 0.2 to 1.1 eV. This sensitivity is similar to those of the 76Ge experiments.

C. Arnaboldi; D. R. Artusa; F. T. Avignone III; M. Balata; I. Bandac; M. Barucci; J. W. Beeman; C. Brofferio; C. Bucci; S. Capelli; L. Carbone; S. Cebrian; O. Cremonesi; R. J. Creswick; A. de Waard; H. A. Farach; E. Fiorini; G. Frossati; E. Guardincerri; A. Giuliani; P. Gorla; E. E. Haller; J. McDonald; E. B. Norman; A. Nucciotti; E. Olivieri; M. Pallavicini; E. Palmieri; E. Pasca; M. Pavan; M. Pedretti; G. Pessina; S. Pirro; E. Previtali; L. Risegari; C. Rosenfeld; S. Sangiorgio; M. Sisti; A. R. Smith; L. Torres; G. Ventura

2005-01-13T23:59:59.000Z

249

Determination of free acid by standard addition method in potassium thiocyanate  

SciTech Connect (OSTI)

The free acid content of solutions containing hydrolyzable ions has been determined potentiometrically by a standard addition method. Two increments of acid are added to the sample in 1M potassium thiocyanate solution. The sample concentration is calculated by solution of three simultaneous Nernst equations. The method has been demonstrated for solutions containing Al/sup 3 +/, Cr/sup 3 +/, Fe/sup 3 +/, Hg/sup 2 +/, Ni/sup 2 +/, Th/sup 4 +/, or UO/sub 2//sup 2 +/ with a metal-to-acid ratio of < 2.5. The method is suitable for determination of 10 ..mu..moles acid in 10 mL total volume. The accuracy can be judged from the agreement of the Nernst slopes found in the presence and absence of hydrolyzable ions. The relative standard deviation is < 2.5%. The report includes a survey of experiments with thermometric, pH, and Gran plot titrations in a variety of complexants, from which the method was evolved. Also included is a literature survey of sixty references, a discussion of the basic measurements, and a complete analytical procedure.

Baumann, E W

1982-06-01T23:59:59.000Z

250

Oxygen contamination in liquid Argon: combined effects on ionization electron charge and scintillation light  

E-Print Network [OSTI]

A dedicated test of the effects of Oxygen contamination in liquid Argon has been performed at the INFN-Gran Sasso Laboratory (LNGS, Italy) within the WArP R&D program. Two detectors have been used: the WArP 2.3 lt prototype and a small (0.7 lt) dedicated detector, coupled with a system for the injection of controlled amounts of gaseous Oxygen. Purpose of the test with the 0.7 lt detector is to detect the reduction of the long-lived component lifetime of the Argon scintillation light emission at increasing O2 concentration. Data from the WArP prototype are used for determining the behavior of both the ionization electron lifetime and the scintillation long-lived component lifetime during the O2-purification process activated in closed loop during the acquisition run. The electron lifetime measurements allow to infer the O2 content of the Argon and correlate it with the long-lived scintillation lifetime data. The effect of Oxygen contamination on the scintillation light has been thus measured over a wide range of O2 concentration, spanning from about 10^-3 ppm up to about 10 ppm. The rate constant of the light quenching process induced by Oxygen in LAr has been found to be k'(O2)=0.54+-0.03 micros^-1 ppm^-1.

R. Acciarri; M. Antonello; B. Baibussinov; M. Baldo-Ceolin; P. Benetti; F. Calaprice; E. Calligarich; M. Cambiaghi; N. Canci; F. Carbonara; F. Cavanna; S. Centro; A. G. Cocco; F. Di Pompeo; G. Fiorillo; C. Galbiati; V. Gallo; L. Grandi; G. Meng; I. Modena; C. Montanari; O. Palamara; L. Pandola; F. Pietropaolo; G. L. Raselli; M. Roncadelli; M. Rossella; C. Rubbia; E. Segreto; A. M. Szelc; F. Tortorici; S. Ventura; C. Vignoli

2008-04-08T23:59:59.000Z

251

A Calorimetric Search on Double Beta Decay of 130Te  

E-Print Network [OSTI]

We report on the final results of a series of experiments on double decay of 130Te carried out with an array of twenty cryogenic detectors. The set-up is made with crystals of TeO2 with a total mass of 6.8 kg, the largest operating one for a cryogenic experiment. Four crystals are made with isotopically enriched materials: two in 128Te and two others in 130Te. The remaining ones are made with natural tellurium, which contains 31.7 % and 33.8 % 128Te and 130Te, respectively. The array was run under a heavy shield in the Gran Sasso Underground Laboratory at a depth of about 3500 m.w.e. By recording the pulses of each detector in anticoincidence with the others a lower limit of 2.1E23 years has been obtained at the 90 % C.L. on the lifetime for neutrinoless double beta decay of 130Te. In terms of effective neutrino mass this is the most restrictive limit in direct experiments, after those obtained with Ge diodes. Limits on other lepton violating decays of 130Te and on the neutrinoless double beta decay of 128Te to the ground state of 128Xe are also reported and discussed. An indication is presented for the two neutrino double beta decay of 130Te. Some consequences of the present results in the interpretation of geochemical experiments are discussed.

C. Arnaboldi; C. Brofferio; C. Bucci; S. Capelli; O. Cremonesi; E. Fiorini; A. Giuliani; A. Nucciotti; M. Pavan; M. Pedretti; G. Pessina; S. Pirro; C. Pobes; E. Previtali; M. Sisti; M. Vanzini

2003-02-25T23:59:59.000Z

252

Evidence for Granulation and Oscillations in Procyon from Photometry with the WIRE satellite  

E-Print Network [OSTI]

We report evidence for the granulation signal in the star Procyon A, based on two photometric time series from the star tracker on the WIRE satellite. The power spectra show evidence of excess power around 1 milliHz, consistent with the detection of p-modes reported from radial velocity measurements. We see a significant increase in the noise level below 3 milliHz, which we interpret as the granulation signal. We have made a large set of numerical simulations to constrain the amplitude and timescale of the granulation signal and the amplitude of the oscillations. We find that the timescale for granulation is T(gran) = 750(200) s, the granulation amplitude is 1.8(0.3) times solar, and the amplitude of the p-modes is 8(3) ppm. We found the distribution of peak heights in the observed power spectra to be consistent with that expected from p-mode oscillations. However, the quality of the data is not sufficient to measure the large separation or detect a comb-like structure, as seen in the p-modes of the Sun. Comparison with the recent negative result from the MOST satellite reveal that the MOST data must have an additional noise source that prevented the detection of oscillations.

H. Bruntt; H. Kjeldsen; D. L. Buzasi; T. R. Bedding

2005-04-25T23:59:59.000Z

253

Precise measurement of the 222Rn half-life: a probe to monitor the stability of radioactivity  

E-Print Network [OSTI]

We give the results of a study on the 222Rn decay we performed in the Gran Sasso Laboratory (LNGS) by detecting the gamma rays from the radon progeny. The motivation was to monitor the stability of radioactivity measuring several times per year the half-life of a short lifetime (days) source instead of measuring over a long period the activity of a long lifetime (tens or hundreds of years) source. In particular, we give the reason of the large periodical fluctuations in the count rate of the gamma rays due to radon inside a closed canister which has been described in literature and which has been attributed to a possible influence of a component in the solar irradiation affecting the nuclear decay rates. We then provide the result of four half-life measurements we performed underground at LNGS in the period from May 2014 to January 2015 with radon diffused into olive oil. Briefly, we did not measure any change of the 222Rn half-life with a 8*10^-5 precision. Finally, we provide the most precise value for the ...

Bellotti, E; Di Carlo, G; Laubenstein, M; Menegazzo, R

2015-01-01T23:59:59.000Z

254

Precise measurement of the 222Rn half-life: a probe to monitor the stability of radioactivity  

E-Print Network [OSTI]

We give the results of a study on the 222Rn decay we performed in the Gran Sasso Laboratory (LNGS) by detecting the gamma rays from the radon progeny. The motivation was to monitor the stability of radioactivity measuring several times per year the half-life of a short lifetime (days) source instead of measuring over a long period the activity of a long lifetime (tens or hundreds of years) source. In particular, we give the reason of the large periodical fluctuations in the count rate of the gamma rays due to radon inside a closed canister which has been described in literature and which has been attributed to a possible influence of a component in the solar irradiation affecting the nuclear decay rates. We then provide the result of four half-life measurements we performed underground at LNGS in the period from May 2014 to January 2015 with radon diffused into olive oil. Briefly, we did not measure any change of the 222Rn half-life with a 8*10^-5 precision. Finally, we provide the most precise value for the 222Rn half-life: 3.82146(16){stat}(4){syst} days.

E. Bellotti; C. Broggini; G. Di Carlo; M. Laubenstein; R. Menegazzo

2015-01-30T23:59:59.000Z

255

Investigation of rare nuclear decays with BaF$_2$ crystal scintillator contaminated by radium  

E-Print Network [OSTI]

The radioactive contamination of a BaF$_2$ scintillation crystal with mass of 1.714 kg was measured over 101 hours in the low-background DAMA/R&D set-up deep underground (3600 m w.e.) at the Gran Sasso National Laboratories of INFN (LNGS, Italy). The half-life of $^{212}$Po (present in the crystal scintillator due to contamination by radium) was measured as $T_{1/2}(^{212}$Po) = 298.8$\\pm$0.8(stat.)$\\pm$1.4(syst.) ns by analysis of the events' pulse profiles. The $^{222}$Rn nuclide is known as 100% decaying via emission of $\\alpha$ particle with $T_{1/2}$ = 3.82 d; however, its $\\beta$ decay is also energetically allowed with $Q_\\beta = 24\\pm21$ keV. Search for decay chains of events with specific pulse shapes characteristic for $\\alpha$ or for $\\beta/\\gamma$ signals and with known energies and time differences allowed us to set, for the first time, the limit on the branching ratio of $^{222}$Rn relatively to $\\beta$ decay as $B_\\beta 8.0$ y). Half-life limits of $^{212}$Pb, $^{222}$Rn and $^{226}$Ra relatively to $2\\beta$ decays are also improved in comparison with the earlier results.

P. Belli; R. Bernabei; F. Cappella; V. Caracciolo; R. Cerulli; F. A. Danevich; A. Di Marco; A. Incicchitti; D. V. Poda; O. G. Polischuk; V. I. Tretyak

2014-07-22T23:59:59.000Z

256

A Search for Methane in the Atmosphere of GJ 1214b via GTC Narrow-Band Transmission Spectrophotometry  

E-Print Network [OSTI]

We present narrow-band photometric measurements of the exoplanet GJ 1214b using the 10.4 m Gran Telescopio Canarias (GTC) and the OSIRIS instrument. Using tuneable filters we observed a total of five transits, three of which were observed at two wavelengths nearly simultaneously, producing a total of eight individual light curves, six of these probed the possible existence of a methane absorption feature in the 8770 - 8850 {\\AA} region at high resolution. We detect no increase in the planet-to-star radius ratio across the methane feature with a change in radius ratio of $\\Delta$R = -0.0007 $\\pm$ 0.0017 corresponding to a scale height (H) change of -0.5 $\\pm$ 1.2 H across the methane feature, assuming a hydrogen dominated atmosphere. We find a variety of water and cloudy atmospheric models fit the data well, but find that cloud-free models provide poor fits. These observations support a flat transmission spectrum resulting from the presence of a high-altitude haze or a water-rich atmosphere, in agreement with ...

Wilson, P A; Sing, D K; Ballester, G E; Désert, J -M; Ehrenreich, D; Ford, E B; Fortney, J J; Etangs, A Lecavelier des; López-Morales, M; Morley, C V; Pettitt, A R; Pont, F; Vidal-Madjar, A

2013-01-01T23:59:59.000Z

257

METAL-RICH PLANETARY NEBULAE IN THE OUTER REACHES OF M31  

SciTech Connect (OSTI)

Spectroscopic data of two relatively [O III]-luminous planetary nebulae (PNe) have been obtained with the 10.4 m Gran Telescopio Canarias. M174 and M2496 are each {approx}1 Degree-Sign from the center of M31 along opposite sides of its minor axis. The ensemble of these 2 distant PNe plus 16 similarly luminous outer-disk PNe published previously by Kwitter et al. forms a homogeneous group in luminosity, metal content, progenitor mass, age, and kinematics. The main factual findings of our work are (1) O/H (and other low-mass {alpha} elements and their ratios to O) is uniformly solar-like in all 18 PNe ((12 + log(O/H)) = 8.62 {+-} 0.14); (2) the general sky distribution and kinematics of the ensemble much more closely resemble the rotation pattern of the classical disk of M31 than its halo or bulge; (3) the O/H gradient is surprisingly flat beyond R{sub g} {approx} 20 kpc. The PNe are too metal-rich to be bona fide members of M31's disk or halo, and (4) the abundance patterns of the sample are distinct from those in the spiral galaxies M33, M81, and NGC 300. Using standard PN age diagnostic methods, we suggest that all of the PNe formed {approx}2 Gyr ago in a starburst of metal-rich interstellar medium that followed an M31-M33 encounter about 3 Gyr ago. We review supporting evidence from stellar studies. Other more prosaic explanations, such as dwarf galaxy assimilation, are unlikely.

Balick, B. [Department of Astronomy, University of Washington, Seattle, WA 98195-1580 (United States); Kwitter, K. B. [Department of Astronomy, Williams College, Williamstown, MA 01267 (United States); Corradi, R. L. M. [Instituto de Astrofisica de Canarias, E-38200 La Laguna, Tenerife (Spain); Henry, R. B. C., E-mail: balick@uw.edu, E-mail: kkwitter@williams.edu, E-mail: rcorradi@iac.es, E-mail: henry@ou.edu [H. L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019 (United States)

2013-09-01T23:59:59.000Z

258

OPTICAL PHOTOMETRIC GTC/OSIRIS OBSERVATIONS OF THE YOUNG MASSIVE ASSOCIATION CYGNUS OB2  

SciTech Connect (OSTI)

In order to fully understand the gravitational collapse of molecular clouds, the star formation process, and the evolution of circumstellar disks, these phenomena must be studied in different Galactic environments with a range of stellar contents and positions in the Galaxy. The young massive association Cygnus OB2, in the Cygnus-X region, is a unique target to study how star formation and the evolution of circumstellar disks proceed in the presence of a large number of massive stars. We present a catalog obtained with recent optical observations in the r, i, z filters with OSIRIS, mounted on the 10.4 m Gran Telescopio CANARIAS telescope, which is the deepest optical catalog of Cyg OB2 to date. The catalog consists of 64,157 sources down to M = 0.15 M{sub Sun} at the adopted distance and age of Cyg OB2. A total of 38,300 sources have good photometry in all three bands. We combined the optical catalog with existing X-ray data of this region, in order to define the cluster locus in the optical diagrams. The cluster locus in the r - i versus i - z diagram is compatible with an extinction of the optically selected cluster members in the 2.64{sup m} < A{sub V} < 5.57{sup m} range. We derive an extinction map of the region, finding a median value of A{sub V} = 4.33{sup m} in the center of the association, decreasing toward the northwest. In the color-magnitude diagrams, the shape of the distribution of main-sequence stars is compatible with the presence of an obscuring cloud in the foreground {approx}850 {+-} 25 pc from the Sun.

Guarcello, M. G.; Wright, N. J.; Drake, J. J.; Aldcroft, T.; Kashyap, V. L. [Smithsonian Astrophysical Observatory, MS-67, 60 Garden Street, Cambridge, MA 02138 (United States); Garcia-Alvarez, D. [Instituto de Astrofisica de Canarias, E-38205 La Laguna, Tenerife (Spain); Drew, J. E. [CAR/STRI, University of Hertfordshire, College Lane, Hatfield, AL10 9AB (United Kingdom)

2012-10-15T23:59:59.000Z

259

Neutron Interactions in the CUORE Neutrinoless Double Beta Decay Experiment  

SciTech Connect (OSTI)

Neutrinoless double beta decay (0{nu}DBD) is a lepton-number violating process that can occur only for a massive Majorana neutrino. The search for 0{nu}DBD is currently the only practical experimental way to determine whether neutrinos are identical to their own antiparticles (Majorana neutrinos) or have distinct particle and anti-particle states (Dirac neutrinos). In addition, the observation of 0{nu}DBD can provide information about the absolute mass scale of the neutrino. The Cuoricino experiment was a sensitive search for 0{nu}DBD, as well as a proof of principle for the next generation experiment, CUORE. CUORE will search for 0{nu}DBD of {sup 130}Te with a ton-scale array of unenriched TeO{sub 2} bolometers. By increasing mass and decreasing the background for 0{nu}DBD, the half-life sensitivity of CUORE will be a factor of twenty better than that of Cuoricino. The site for both of these experiments is the Laboratori Nazionali del Gran Sasso, an underground laboratory with 3300 meters water equivalent rock overburden and a cosmic ray muon attenuation factor of 10{sup -6}. Because of the extreme low background requirements for CUORE, it is important that all potential sources of background in the 0{nu}DBD peak region at 2530 keV are well understood. One potential source of background for CUORE comes from neutrons, which can be produced underground both by ({alpha},n) reactions and by fast cosmic ray muon interactions. Preliminary simulations by the CUORE collaboration indicate that these backgrounds will be negligible for CUORE. However, in order to accurately simulate the expected neutron background, it is important to understand the cross sections for neutron interactions with detector materials. In order to help refine these simulations, I have measured the gamma-ray production cross sections for interactions of neutrons on the abundant stable isotopes of Te using the GEANIE detector array at the Los Alamos Neutron Science Center. In addition, I have used the GEANIE data to set an upper limit for the production of a 2529 keV gamma-ray from the {sup 126}Te(n,n{prime}{gamma}) reaction. This gamma-ray is a potential source of interference for the 0{nu}DBD peak. Based on this measurement, the contribution of this line to the background is expected to be negligible.

Dolinski, M J

2008-09-24T23:59:59.000Z