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Measurement of the Antineutrino Spectrum from
Ashenfelter, J; Balantekin, A B; Band, H R; Bass, C D; Bergeron, D E; Berish, D; Bowden, N S; Brodsky, J P; Bryan, C D; Cherwinka, J J; Classen, T; Conant, A J; Cox, A A; Davee, D; Dean, D; Deichert, G; Diwan, M V; Dolinski, M J; Erickson, A; Febbraro, M; Foust, B T; Gaison, J K; Galindo-Uribarri, A; Gilbert, C E; Gilje, K E; Hackett, B T; Hans, S; Hansell, A B; Heeger, K M; Insler, J; Jaffe, D E; Ji, X; Jones, D C; Kyzylova, O; Lane, C E; Langford, T J; LaRosa, J; Littlejohn, B R; Lu, X; Martinez Caicedo, D A; Matta, J T; McKeown, R D; Mendenhall, M P; Minock, J M; Mueller, P E; Mumm, H P; Napolitano, J; Neilson, R; Nikkel, J A; Norcini, D.
Afiliación
  • Ashenfelter J; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Balantekin AB; Department of Physics, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA.
  • Band HR; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Bass CD; Department of Physics, Le Moyne College, Syracuse, New York 13214, USA.
  • Bergeron DE; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Berish D; Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.
  • Bowden NS; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Brodsky JP; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bryan CD; High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Cherwinka JJ; Physical Sciences Laboratory, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA.
  • Classen T; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Conant AJ; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
  • Cox AA; Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
  • Davee D; Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA.
  • Dean D; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Deichert G; High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Diwan MV; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Dolinski MJ; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  • Erickson A; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
  • Febbraro M; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Foust BT; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Gaison JK; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Galindo-Uribarri A; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Gilbert CE; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.
  • Gilje KE; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Hackett BT; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.
  • Hans S; Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
  • Hansell AB; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Heeger KM; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.
  • Insler J; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Jaffe DE; Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.
  • Ji X; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Jones DC; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  • Kyzylova O; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Lane CE; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Langford TJ; Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.
  • LaRosa J; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  • Littlejohn BR; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  • Lu X; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Martinez Caicedo DA; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Matta JT; Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
  • McKeown RD; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Mendenhall MP; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.
  • Minock JM; Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
  • Mueller PE; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Mumm HP; Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA.
  • Napolitano J; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Neilson R; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  • Nikkel JA; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Norcini D; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
Phys Rev Lett ; 122(25): 251801, 2019 Jun 28.
Article en En | MEDLINE | ID: mdl-31347897
ABSTRACT
This Letter reports the first measurement of the ^{235}U ν[over ¯]_{e} energy spectrum by PROSPECT, the Precision Reactor Oscillation and Spectrum experiment, operating 7.9 m from the 85 MW_{th} highly enriched uranium (HEU) High Flux Isotope Reactor. With a surface-based, segmented detector, PROSPECT has observed 31678±304(stat) ν[over ¯]_{e}-induced inverse beta decays, the largest sample from HEU fission to date, 99% of which are attributed to ^{235}U. Despite broad agreement, comparison of the Huber ^{235}U model to the measured spectrum produces a χ^{2}/ndf=51.4/31, driven primarily by deviations in two localized energy regions. The measured ^{235}U spectrum shape is consistent with a deviation relative to prediction equal in size to that observed at low-enriched uranium power reactors in the ν[over ¯]_{e} energy region of 5-7 MeV.
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Texto completo: 1 Banco de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Phys Rev Lett Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
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Texto completo: 1 Banco de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Phys Rev Lett Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos