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First Search for Short-Baseline Neutrino Oscillations at HFIR with PROSPECT.
Ashenfelter, J; Balantekin, A B; Baldenegro, C; Band, H R; Bass, C D; Bergeron, D E; Berish, D; Bignell, L J; Bowden, N S; Bricco, J; Brodsky, J P; Bryan, C D; Bykadorova Telles, A; Cherwinka, J J; Classen, T; Commeford, K; 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; Glenn, A; Goddard, B W; Hackett, B T; Han, K; Hans, S; Hansell, A B; Heeger, K M; Heffron, B; Insler, J; Jaffe, D E; Ji, X; Jones, D C; Koehler, K; Kyzylova, O; Lane, C E; Langford, T J; LaRosa, J; Littlejohn, B R; Lopez, F; Lu, X.
Afiliação
  • 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.
  • Baldenegro C; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, 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.
  • Bignell LJ; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Bowden NS; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bricco J; Physical Sciences Laboratory, University of Wisconsin, Madison, Madison, Wisconsin 53706, 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 37830, USA.
  • Bykadorova Telles A; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, 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.
  • Commeford K; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, 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 23185, USA.
  • Dean D; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
  • Deichert G; High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, 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 37830, 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 37830, USA.
  • Gilbert CE; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA.
  • Gilje KE; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
  • Glenn A; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA.
  • Goddard BW; Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
  • Hackett BT; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Han K; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  • Hans S; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
  • Hansell AB; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA.
  • Heeger KM; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Heffron B; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Insler J; Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.
  • Jaffe DE; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
  • Ji X; Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
  • Jones DC; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA.
  • Koehler K; 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; Physical Sciences Laboratory, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA.
  • Littlejohn BR; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  • Lopez F; Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  • Lu X; Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.
Phys Rev Lett ; 121(25): 251802, 2018 Dec 21.
Article em En | MEDLINE | ID: mdl-30608854
ABSTRACT
This Letter reports the first scientific results from the observation of antineutrinos emitted by fission products of ^{235}U at the High Flux Isotope Reactor. PROSPECT, the Precision Reactor Oscillation and Spectrum Experiment, consists of a segmented 4 ton ^{6}Li-doped liquid scintillator detector covering a baseline range of 7-9 m from the reactor and operating under less than 1 m water equivalent overburden. Data collected during 33 live days of reactor operation at a nominal power of 85 MW yield a detection of 25 461±283 (stat) inverse beta decays. Observation of reactor antineutrinos can be achieved in PROSPECT at 5σ statistical significance within 2 h of on-surface reactor-on data taking. A reactor model independent analysis of the inverse beta decay prompt energy spectrum as a function of baseline constrains significant portions of the previously allowed sterile neutrino oscillation parameter space at 95% confidence level and disfavors the best fit of the reactor antineutrino anomaly at 2.2σ confidence level.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article