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Final Measurement of the
Andriamirado, M; Balantekin, A B; Bass, C D; Bergeron, D E; Bernard, E P; Bowden, N S; Bryan, C D; Carr, R; Classen, T; Conant, A J; Deichert, G; Delgado, A; Diwan, M V; Dolinski, M J; Erickson, A; Foust, B T; Gaison, J K; Galindo-Uribari, A; Gilbert, C E; Gokhale, S; Grant, C; Hans, S; Hansell, A B; Heeger, K M; Heffron, B; Jaffe, D E; Jayakumar, S; Ji, X; Jones, D C; Koblanski, J; Kunkle, P; Kyzylova, O; LaBelle, D; Lane, C E; Langford, T J; LaRosa, J; Littlejohn, B R; Lu, X; Maricic, J; Mendenhall, M P; Meyer, A M; Milincic, R; Mueller, P E; Mumm, H P; Napolitano, J; Neilson, R; Nikkel, J A; Nour, S; Palomino Gallo, J L; Pushin, D A.
Afiliación
  • Andriamirado M; Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
  • Balantekin AB; Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, 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.
  • Bernard EP; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bowden NS; 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, USA.
  • Carr R; Department of Physics, United States Naval Academy, Annapolis, Maryland 21402, USA.
  • Classen T; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Conant AJ; High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA.
  • Deichert G; High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA.
  • Delgado A; Physics Division, 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 PA 19104-2875, Pennsylvania, USA.
  • Erickson A; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, 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-Uribari 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.
  • Gokhale S; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Grant C; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Hans S; Department of Physics, Boston University, Boston, Massachusetts 02215, USA.
  • Hansell AB; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Heeger KM; Department of Physics, Susquehanna University, Selinsgrove, Pennsylvania 17870, USA.
  • Heffron B; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Jaffe DE; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Jayakumar S; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.
  • Ji X; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Jones DC; Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA.
  • Koblanski J; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Kunkle P; Department of Physics (035-08), Temple University, 1925 N 12th Street, Philadelphia, Pennsylvania 19122-1801, USA.
  • Kyzylova O; Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA.
  • LaBelle D; Department of Physics, Boston University, Boston, Massachusetts 02215, USA.
  • Lane CE; Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA.
  • Langford TJ; Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA.
  • LaRosa J; Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA.
  • Littlejohn BR; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Lu X; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Maricic J; Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
  • Mendenhall MP; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Meyer AM; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.
  • Milincic R; Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA.
  • Mueller PE; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Mumm HP; Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA.
  • Napolitano J; Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA.
  • Neilson R; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Nikkel JA; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Nour S; Department of Physics (035-08), Temple University, 1925 N 12th Street, Philadelphia, Pennsylvania 19122-1801, USA.
  • Palomino Gallo JL; Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA.
  • Pushin DA; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
Phys Rev Lett ; 131(2): 021802, 2023 Jul 14.
Article en En | MEDLINE | ID: mdl-37505961
ABSTRACT
This Letter reports one of the most precise measurements to date of the antineutrino spectrum from a purely ^{235}U-fueled reactor, made with the final dataset from the PROSPECT-I detector at the High Flux Isotope Reactor. By extracting information from previously unused detector segments, this analysis effectively doubles the statistics of the previous PROSPECT measurement. The reconstructed energy spectrum is unfolded into antineutrino energy and compared with both the Huber-Mueller model and a spectrum from a commercial reactor burning multiple fuel isotopes. A local excess over the model is observed in the 5-7 MeV energy region. Comparison of the PROSPECT results with those from commercial reactors provides new constraints on the origin of this excess, disfavoring at 2.0 and 3.7 standard deviations the hypotheses that antineutrinos from ^{235}U are solely responsible and noncontributors to the excess observed at commercial reactors, respectively.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos