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Total Absorption Spectroscopy Study of (92)Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape.
Zakari-Issoufou, A-A; Fallot, M; Porta, A; Algora, A; Tain, J L; Valencia, E; Rice, S; Bui, V M; Cormon, S; Estienne, M; Agramunt, J; Äystö, J; Bowry, M; Briz, J A; Caballero-Folch, R; Cano-Ott, D; Cucoanes, A; Elomaa, V-V; Eronen, T; Estévez, E; Farrelly, G F; Garcia, A R; Gelletly, W; Gomez-Hornillos, M B; Gorlychev, V; Hakala, J; Jokinen, A; Jordan, M D; Kankainen, A; Karvonen, P; Kolhinen, V S; Kondev, F G; Martinez, T; Mendoza, E; Molina, F; Moore, I; Perez-Cerdán, A B; Podolyák, Zs; Penttilä, H; Regan, P H; Reponen, M; Rissanen, J; Rubio, B; Shiba, T; Sonzogni, A A; Weber, C.
Afiliação
  • Zakari-Issoufou AA; SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France.
  • Fallot M; SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France.
  • Porta A; SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France.
  • Algora A; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Tain JL; Institute of Nuclear Research, MTA ATOMKI, Debrecen, 4026 Hungary.
  • Valencia E; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Rice S; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Bui VM; Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom.
  • Cormon S; SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France.
  • Estienne M; SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France.
  • Agramunt J; SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France.
  • Äystö J; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Bowry M; Helsinki Institute of Physics, University of Helsinki, FI-00014 Helsinki, Finland.
  • Briz JA; Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom.
  • Caballero-Folch R; SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France.
  • Cano-Ott D; Universitat Politécnica de Catalunya (UPC), 08034 Barcelona, Spain.
  • Cucoanes A; Centro de Investigaciones Energéticas Medioambientales Y Tecnológicas, E-28040 Madrid, Spain.
  • Elomaa VV; SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France.
  • Eronen T; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Estévez E; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Farrelly GF; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Garcia AR; Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom.
  • Gelletly W; Centro de Investigaciones Energéticas Medioambientales Y Tecnológicas, E-28040 Madrid, Spain.
  • Gomez-Hornillos MB; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Gorlychev V; Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom.
  • Hakala J; Universitat Politécnica de Catalunya (UPC), 08034 Barcelona, Spain.
  • Jokinen A; Universitat Politécnica de Catalunya (UPC), 08034 Barcelona, Spain.
  • Jordan MD; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Kankainen A; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Karvonen P; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Kolhinen VS; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Kondev FG; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Martinez T; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Mendoza E; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Molina F; Centro de Investigaciones Energéticas Medioambientales Y Tecnológicas, E-28040 Madrid, Spain.
  • Moore I; Centro de Investigaciones Energéticas Medioambientales Y Tecnológicas, E-28040 Madrid, Spain.
  • Perez-Cerdán AB; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Podolyák Z; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Penttilä H; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
  • Regan PH; Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom.
  • Reponen M; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Rissanen J; Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom.
  • Rubio B; National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom.
  • Shiba T; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Sonzogni AA; Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  • Weber C; Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain.
Phys Rev Lett ; 115(10): 102503, 2015 Sep 04.
Article em En | MEDLINE | ID: mdl-26382674
ABSTRACT
The antineutrino spectra measured in recent experiments at reactors are inconsistent with calculations based on the conversion of integral beta spectra recorded at the ILL reactor. (92)Rb makes the dominant contribution to the reactor antineutrino spectrum in the 5-8 MeV range but its decay properties are in question. We have studied (92)Rb decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2015 Tipo de documento: Article País de afiliação: França
Buscar no Google
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2015 Tipo de documento: Article País de afiliação: França