Joint Measurement of the U 235 Antineutrino Spectrum by PROSPECT and STEREO

H. Almazán; M. Andriamirado; A. B. Balantekin; H. R. Band; C. D. Bass; D. E. Bergeron; L. Bernard; A. Blanchet; A. Bonhomme; N. S. Bowden; C. D. Bryan; C. Buck; T. Classen; A. J. Conant; G. Deichert; P. Del Amo Sanchez; A. Delgado; M. V. Diwan; M. J. Dolinski; I. El Atmani; A. Erickson; B. T. Foust; J. K. Gaison; A. Galindo-Uribarri; C. E. Gilbert; S. Hans; A. B. Hansell; K. M. Heeger; B. Heffron; D. E. Jaffe; S. Jayakumar; X. Ji; D. C. Jones; J. Koblanski; O. Kyzylova; L. Labit; J. Lamblin; C. E. Lane; T. J. Langford; J. Larosa; A. Letourneau; D. Lhuillier; M. Licciardi; M. Lindner; B. R. Littlejohn; X. Lu; J. Maricic; T. Materna; M. P. Mendenhall; A. M. Meyer; R. Milincic; P. E. Mueller; H. P. Mumm; J. Napolitano; R. Neilson; J. A. Nikkel; S. Nour; J. L. Palomino; H. Pessard; D. A. Pushin; X. Qian; J. S. Réal; J. S. Ricol; C. Roca; R. Rogly; R. Rosero; T. Salagnac; V. Savu; S. Schoppmann; M. Searles; V. Sergeyeva; T. Soldner; A. Stutz; P. T. Surukuchi; M. A. Tyra; R. L. Varner; D. Venegas-Vargas; M. Vialat; P. B. Weatherly; C. White; J. Wilhelmi; A. Woolverton; M. Yeh; C. Zhang; X. Zhang

doi:10.1103/PhysRevLett.128.081802

Joint Measurement of the U 235 Antineutrino Spectrum by PROSPECT and STEREO

H. Almazán, M. Andriamirado, A. B. Balantekin, H. R. Band, C. D. Bass, D. E. Bergeron, L. Bernard, A. Blanchet, A. Bonhomme, N. S. Bowden, C. D. Bryan, C. Buck, T. Classen, A. J. Conant, G. Deichert, P. Del Amo Sanchez, A. Delgado, M. V. Diwan, M. J. Dolinski, I. El AtmaniA. Erickson, B. T. Foust, J. K. Gaison, A. Galindo-Uribarri, C. E. Gilbert, S. Hans, A. B. Hansell, K. M. Heeger, B. Heffron, D. E. Jaffe, S. Jayakumar, X. Ji, D. C. Jones, J. Koblanski, O. Kyzylova, L. Labit, J. Lamblin, C. E. Lane, T. J. Langford, J. Larosa, A. Letourneau, D. Lhuillier, M. Licciardi, M. Lindner, B. R. Littlejohn, X. Lu, J. Maricic, T. Materna, M. P. Mendenhall, A. M. Meyer, R. Milincic, P. E. Mueller, H. P. Mumm, J. Napolitano, R. Neilson, J. A. Nikkel, S. Nour, J. L. Palomino, H. Pessard, D. A. Pushin, X. Qian, J. S. Réal, J. S. Ricol, C. Roca, R. Rogly, R. Rosero, T. Salagnac, V. Savu, S. Schoppmann, M. Searles, V. Sergeyeva, T. Soldner, A. Stutz, P. T. Surukuchi, M. A. Tyra, R. L. Varner, D. Venegas-Vargas, M. Vialat, P. B. Weatherly, C. White, J. Wilhelmi, A. Woolverton, M. Yeh, C. Zhang, X. Zhang

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The PROSPECT and STEREO collaborations present a combined measurement of the pure U235 antineutrino spectrum, without site specific corrections or detector-dependent effects. The spectral measurements of the two highest precision experiments at research reactors are found to be compatible with χ2/ndf=24.1/21, allowing a joint unfolding of the prompt energy measurements into antineutrino energy. This ν¯e energy spectrum is provided to the community, and an excess of events relative to the Huber model is found in the 5-6 MeV region. When a Gaussian bump is fitted to the excess, the data-model χ2 value is improved, corresponding to a 2.4σ significance.

Original language	English
Article number	081802
Journal	Physical Review Letters
Volume	128
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.128.081802
State	Published - Feb 25 2022

Funding

The STEREO experiment is funded by the French National Research Agency (ANR) within Project No. ANR-13-BS05-0007. Authors are grateful for the technical and administrative support of the ILL for the installation and operation of the STEREO detector. We further acknowledge the support of the CEA, the CNRS/IN2P3 and the Max Planck Society. The PROSPECT experiment is supported by the following sources: U.S. Department of Energy (DOE) Office of Science, Office of High Energy Physics under Awards No. DE-SC0016357 and No. DE-SC0017660 to Yale University, under Award No. DE-SC0017815 to Drexel University, under Award No. DE-SC0008347 to Illinois Institute of Technology, under Award No. DE-SC0016060 to Temple University, under Contract No. DE-SC0012704 to Brookhaven National Laboratory, and under Work Proposal Number SCW1504 to Lawrence Livermore National Laboratory. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344 and by Oak Ridge National Laboratory under Contract No. DE-AC05-00OR22725. Additional funding for the experiment was provided by the Heising-Simons Foundation under Grant No. #2016-117 to Yale University. J. G. is supported through the NSF Graduate Research Fellowship Program and A. C. performed work under appointment to the Nuclear Nonproliferation International Safeguards Fellowship Program sponsored by the National Nuclear Security Administrations Office of International Nuclear Safeguards (NA-241). This work was also supported by the Canada First Research Excellence Fund (CFREF), and the Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery program under Grant No. RGPIN-418579, and the Province of Ontario. PROSPECT further acknowledges support from Yale University, the Illinois Institute of Technology, Temple University, Brookhaven National Laboratory, the Lawrence Livermore National Laboratory LDRD program, the National Institute of Standards and Technology, and Oak Ridge National Laboratory. We gratefully acknowledge the support and hospitality of the High Flux Isotope Reactor and Oak Ridge National Laboratory, managed by UT-Battelle for the U.S. Department of Energy.

Access to Document

10.1103/PhysRevLett.128.081802

Cite this

Almazán, H., Andriamirado, M., Balantekin, A. B., Band, H. R., Bass, C. D., Bergeron, D. E., Bernard, L., Blanchet, A., Bonhomme, A., Bowden, N. S., Bryan, C. D., Buck, C., Classen, T., Conant, A. J., Deichert, G., Del Amo Sanchez, P., Delgado, A., Diwan, M. V., Dolinski, M. J., ... Zhang, X. (2022). Joint Measurement of the U 235 Antineutrino Spectrum by PROSPECT and STEREO. Physical Review Letters, 128(8), Article 081802. https://doi.org/10.1103/PhysRevLett.128.081802

@article{eb92b91bc3dd40bcb38fbdd83e157919,

title = "Joint Measurement of the U 235 Antineutrino Spectrum by PROSPECT and STEREO",

abstract = "The PROSPECT and STEREO collaborations present a combined measurement of the pure U235 antineutrino spectrum, without site specific corrections or detector-dependent effects. The spectral measurements of the two highest precision experiments at research reactors are found to be compatible with χ2/ndf=24.1/21, allowing a joint unfolding of the prompt energy measurements into antineutrino energy. This ν¯e energy spectrum is provided to the community, and an excess of events relative to the Huber model is found in the 5-6 MeV region. When a Gaussian bump is fitted to the excess, the data-model χ2 value is improved, corresponding to a 2.4σ significance.",

author = "H. Almaz{\'a}n and M. Andriamirado and Balantekin, {A. B.} and Band, {H. R.} and Bass, {C. D.} and Bergeron, {D. E.} and L. Bernard and A. Blanchet and A. Bonhomme and Bowden, {N. S.} and Bryan, {C. D.} and C. Buck and T. Classen and Conant, {A. J.} and G. Deichert and {Del Amo Sanchez}, P. and A. Delgado and Diwan, {M. V.} and Dolinski, {M. J.} and {El Atmani}, I. and A. Erickson and Foust, {B. T.} and Gaison, {J. K.} and A. Galindo-Uribarri and Gilbert, {C. E.} and S. Hans and Hansell, {A. B.} and Heeger, {K. M.} and B. Heffron and Jaffe, {D. E.} and S. Jayakumar and X. Ji and Jones, {D. C.} and J. Koblanski and O. Kyzylova and L. Labit and J. Lamblin and Lane, {C. E.} and Langford, {T. J.} and J. Larosa and A. Letourneau and D. Lhuillier and M. Licciardi and M. Lindner and Littlejohn, {B. R.} and X. Lu and J. Maricic and T. Materna and Mendenhall, {M. P.} and Meyer, {A. M.} and R. Milincic and Mueller, {P. E.} and Mumm, {H. P.} and J. Napolitano and R. Neilson and Nikkel, {J. A.} and S. Nour and Palomino, {J. L.} and H. Pessard and Pushin, {D. A.} and X. Qian and R{\'e}al, {J. S.} and Ricol, {J. S.} and C. Roca and R. Rogly and R. Rosero and T. Salagnac and V. Savu and S. Schoppmann and M. Searles and V. Sergeyeva and T. Soldner and A. Stutz and Surukuchi, {P. T.} and Tyra, {M. A.} and Varner, {R. L.} and D. Venegas-Vargas and M. Vialat and Weatherly, {P. B.} and C. White and J. Wilhelmi and A. Woolverton and M. Yeh and C. Zhang and X. Zhang",

note = "Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

year = "2022",

month = feb,

day = "25",

doi = "10.1103/PhysRevLett.128.081802",

language = "English",

volume = "128",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

Almazán, H, Andriamirado, M, Balantekin, AB, Band, HR, Bass, CD, Bergeron, DE, Bernard, L, Blanchet, A, Bonhomme, A, Bowden, NS, Bryan, CD, Buck, C, Classen, T, Conant, AJ, Deichert, G, Del Amo Sanchez, P, Delgado, A, Diwan, MV, Dolinski, MJ, El Atmani, I, Erickson, A, Foust, BT, Gaison, JK, Galindo-Uribarri, A, Gilbert, CE, Hans, S, Hansell, AB, Heeger, KM, Heffron, B, Jaffe, DE, Jayakumar, S, Ji, X, Jones, DC, Koblanski, J, Kyzylova, O, Labit, L, Lamblin, J, Lane, CE, Langford, TJ, Larosa, J, Letourneau, A, Lhuillier, D, Licciardi, M, Lindner, M, Littlejohn, BR, Lu, X, Maricic, J, Materna, T, Mendenhall, MP, Meyer, AM, Milincic, R, Mueller, PE, Mumm, HP, Napolitano, J, Neilson, R, Nikkel, JA, Nour, S, Palomino, JL, Pessard, H, Pushin, DA, Qian, X, Réal, JS, Ricol, JS, Roca, C, Rogly, R, Rosero, R, Salagnac, T, Savu, V, Schoppmann, S, Searles, M, Sergeyeva, V, Soldner, T, Stutz, A, Surukuchi, PT, Tyra, MA, Varner, RL, Venegas-Vargas, D, Vialat, M, Weatherly, PB, White, C, Wilhelmi, J, Woolverton, A, Yeh, M, Zhang, C & Zhang, X 2022, 'Joint Measurement of the U 235 Antineutrino Spectrum by PROSPECT and STEREO', Physical Review Letters, vol. 128, no. 8, 081802. https://doi.org/10.1103/PhysRevLett.128.081802

TY - JOUR

T1 - Joint Measurement of the U 235 Antineutrino Spectrum by PROSPECT and STEREO

AU - Almazán, H.

AU - Andriamirado, M.

AU - Balantekin, A. B.

AU - Band, H. R.

AU - Bass, C. D.

AU - Bergeron, D. E.

AU - Bernard, L.

AU - Blanchet, A.

AU - Bonhomme, A.

AU - Bowden, N. S.

AU - Bryan, C. D.

AU - Buck, C.

AU - Classen, T.

AU - Conant, A. J.

AU - Deichert, G.

AU - Del Amo Sanchez, P.

AU - Delgado, A.

AU - Diwan, M. V.

AU - Dolinski, M. J.

AU - El Atmani, I.

AU - Erickson, A.

AU - Foust, B. T.

AU - Gaison, J. K.

AU - Galindo-Uribarri, A.

AU - Gilbert, C. E.

AU - Hans, S.

AU - Hansell, A. B.

AU - Heeger, K. M.

AU - Heffron, B.

AU - Jaffe, D. E.

AU - Jayakumar, S.

AU - Ji, X.

AU - Jones, D. C.

AU - Koblanski, J.

AU - Kyzylova, O.

AU - Labit, L.

AU - Lamblin, J.

AU - Lane, C. E.

AU - Langford, T. J.

AU - Larosa, J.

AU - Letourneau, A.

AU - Lhuillier, D.

AU - Licciardi, M.

AU - Lindner, M.

AU - Littlejohn, B. R.

AU - Lu, X.

AU - Maricic, J.

AU - Materna, T.

AU - Mendenhall, M. P.

AU - Meyer, A. M.

AU - Milincic, R.

AU - Mueller, P. E.

AU - Mumm, H. P.

AU - Napolitano, J.

AU - Neilson, R.

AU - Nikkel, J. A.

AU - Nour, S.

AU - Palomino, J. L.

AU - Pessard, H.

AU - Pushin, D. A.

AU - Qian, X.

AU - Réal, J. S.

AU - Ricol, J. S.

AU - Roca, C.

AU - Rogly, R.

AU - Rosero, R.

AU - Salagnac, T.

AU - Savu, V.

AU - Schoppmann, S.

AU - Searles, M.

AU - Sergeyeva, V.

AU - Soldner, T.

AU - Stutz, A.

AU - Surukuchi, P. T.

AU - Tyra, M. A.

AU - Varner, R. L.

AU - Venegas-Vargas, D.

AU - Vialat, M.

AU - Weatherly, P. B.

AU - White, C.

AU - Wilhelmi, J.

AU - Woolverton, A.

AU - Yeh, M.

AU - Zhang, C.

AU - Zhang, X.

PY - 2022/2/25

Y1 - 2022/2/25

N2 - The PROSPECT and STEREO collaborations present a combined measurement of the pure U235 antineutrino spectrum, without site specific corrections or detector-dependent effects. The spectral measurements of the two highest precision experiments at research reactors are found to be compatible with χ2/ndf=24.1/21, allowing a joint unfolding of the prompt energy measurements into antineutrino energy. This ν¯e energy spectrum is provided to the community, and an excess of events relative to the Huber model is found in the 5-6 MeV region. When a Gaussian bump is fitted to the excess, the data-model χ2 value is improved, corresponding to a 2.4σ significance.

AB - The PROSPECT and STEREO collaborations present a combined measurement of the pure U235 antineutrino spectrum, without site specific corrections or detector-dependent effects. The spectral measurements of the two highest precision experiments at research reactors are found to be compatible with χ2/ndf=24.1/21, allowing a joint unfolding of the prompt energy measurements into antineutrino energy. This ν¯e energy spectrum is provided to the community, and an excess of events relative to the Huber model is found in the 5-6 MeV region. When a Gaussian bump is fitted to the excess, the data-model χ2 value is improved, corresponding to a 2.4σ significance.

UR - http://www.scopus.com/inward/record.url?scp=85125644734&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.128.081802

DO - 10.1103/PhysRevLett.128.081802

M3 - Article

C2 - 35275665

AN - SCOPUS:85125644734

SN - 0031-9007

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 081802

ER -

Joint Measurement of the U 235 Antineutrino Spectrum by PROSPECT and STEREO

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this