Measurement of the Antineutrino Spectrum from ^{235}U Fission at HFIR with PROSPECT.

Journal

Physical review letters

ISSN: 1079-7114

Titre abrégé: Phys Rev Lett

Pays: United States

ID NLM: 0401141

Informations de publication

Date de publication:
28 Jun 2019

Historique:

revised: 22 03 2019

received: 31 12 2018

entrez: 27 7 2019

pubmed: 28 7 2019

medline: 28 7 2019

Statut: ppublish

Résumé

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.

Identifiants

DOI: 10.1103/PhysRevLett.122.251801 PMID: 31347897

pubmed: 31347897

doi: 10.1103/PhysRevLett.122.251801

doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

251801

Auteurs

J Ashenfelter (J)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

A B Balantekin (AB)

Department of Physics, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA.

H R Band (HR)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

C D Bass (CD)

Department of Physics, Le Moyne College, Syracuse, New York 13214, USA.

D E Bergeron (DE)

National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.

D Berish (D)

Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.

N S Bowden (NS)

Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

J P Brodsky (JP)

Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

C D Bryan (CD)

High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

J J Cherwinka (JJ)

Physical Sciences Laboratory, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA.

T Classen (T)

Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

A J Conant (AJ)

George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.

A A Cox (AA)

Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.

D Davee (D)

Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA.

D Dean (D)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

G Deichert (G)

High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

M V Diwan (MV)

Brookhaven National Laboratory, Upton, New York 11973, USA.

M J Dolinski (MJ)

Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.

A Erickson (A)

George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.

M Febbraro (M)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

B T Foust (BT)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

J K Gaison (JK)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

A Galindo-Uribarri (A)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.

C E Gilbert (CE)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.

K E Gilje (KE)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.

B T Hackett (BT)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.

S Hans (S)

Brookhaven National Laboratory, Upton, New York 11973, USA.

A B Hansell (AB)

Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.

K M Heeger (KM)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

J Insler (J)

Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.

D E Jaffe (DE)

Brookhaven National Laboratory, Upton, New York 11973, USA.

X Ji (X)

Brookhaven National Laboratory, Upton, New York 11973, USA.

D C Jones (DC)

Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.

O Kyzylova (O)

Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.

C E Lane (CE)

Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.

T J Langford (TJ)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

J LaRosa (J)

National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.

B R Littlejohn (BR)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.

X Lu (X)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.

D A Martinez Caicedo (DA)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.

J T Matta (JT)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

R D McKeown (RD)

Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA.

M P Mendenhall (MP)

Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

J M Minock (JM)

Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.

P E Mueller (PE)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

H P Mumm (HP)

National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.

J Napolitano (J)

Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.

R Neilson (R)

Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.

J A Nikkel (JA)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

D Norcini (D)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

S Nour (S)

National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.

D A Pushin (DA)

Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.

X Qian (X)

Brookhaven National Laboratory, Upton, New York 11973, USA.

E Romero-Romero (E)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.

R Rosero (R)

Brookhaven National Laboratory, Upton, New York 11973, USA.

D Sarenac (D)

Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.

P T Surukuchi (PT)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.

A B Telles (AB)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

M A Tyra (MA)

National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.

R L Varner (RL)

Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

B Viren (B)

Brookhaven National Laboratory, Upton, New York 11973, USA.

C White (C)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.

J Wilhelmi (J)

Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA.

T Wise (T)

Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA.

M Yeh (M)

Brookhaven National Laboratory, Upton, New York 11973, USA.

Y-R Yen (YR)

Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.

A Zhang (A)

Brookhaven National Laboratory, Upton, New York 11973, USA.

C Zhang (C)

Brookhaven National Laboratory, Upton, New York 11973, USA.

X Zhang (X)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA.

Classifications MeSH