Measurement of Reactor Antineutrino Oscillation at SNO+

M. Abreu; V. Albanese; A. Allega; R. Alves; M. R. Anderson; S. Andringa; L. Anselmo; J. Antunes; E. Arushanova; S. Asahi; M. Askins; D. M. Asner; D. J. Auty; A. R. Back; S. Back; A. Bacon; T. Baltazar; F. Barão; Z. Barnard; A. Barr; N. Barros; D. Bartlett; R. Bayes; C. Beaudoin; E. W. Beier; G. Berardi; T. S. Bezerra; A. Bialek; S. D. Biller; E. Blucher; A. Boeltzig; R. Bonventre; M. Boulay; D. Braid; E. Caden; E. J. Callaghan; J. Caravaca; J. Carvalho; L. Cavalli; D. Chauhan; M. Chen; S. Cheng; O. Chkvorets; K. J. Clark; B. Cleveland; C. Connors; D. Cookman; J. Corning; I. T. Coulter; J. Secrest

doi:10.1103/gypt-lc9v

Measurement of Reactor Antineutrino Oscillation at SNO+

M. Abreu
, V. Albanese
, A. Allega
, R. Alves
, M. R. Anderson
, S. Andringa
, L. Anselmo
, J. Antunes
, E. Arushanova
, S. Asahi
, M. Askins
, D. M. Asner
, D. J. Auty
, A. R. Back
, S. Back
, A. Bacon
, T. Baltazar
, F. Barão
, Z. Barnard
, A. Barr

N. Barros, D. Bartlett, R. Bayes, C. Beaudoin, E. W. Beier, G. Berardi, T. S. Bezerra, A. Bialek, S. D. Biller, E. Blucher, A. Boeltzig, R. Bonventre, M. Boulay, D. Braid, E. Caden, E. J. Callaghan, J. Caravaca, J. Carvalho, L. Cavalli, D. Chauhan, M. Chen, S. Cheng, O. Chkvorets, K. J. Clark, B. Cleveland, C. Connors, D. Cookman, J. Corning, I. T. Coulter, J. Secrest

Laboratório de Instrumentação e Física Experimental de Partículas
University of Lisbon
Laurentian University
Queen's University Kingston
Creighton Mine No. 9
University of London
University of California, Berkeley
Berkeley National Laboratory
University of California, Davis
University of Alberta
University of Sussex
University of Pennsylvania
University of Coimbra
Technische Universität Dresden
University of Oxford
The University of Chicago
Armstrong Atlantic State University
University of Liverpool
King's College London
Boston University
National Autonomous University of Mexico
Brookhaven National Laboratory
TRIUMF
University of North Carolina at Chapel Hill
University of Washington
Idaho State University
Norwich University
Lancaster University
Shandong University
Institute for Nuclear Research

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

1 Scopus citations

Abstract

SNO+ Collaboration reports its second spectral analysis of reactor antineutrino oscillation using 286 ton-yr of new data. The measured energies of reactor antineutrino candidates were fitted to obtain the second-most precise determination of the neutrino mass-squared difference Δm212=(7.96-0.42+0.48)×10-5 eV2. Constraining Δm212 and sin2θ12 with measurements from long-baseline reactor antineutrino and solar neutrino experiments yields Δm212=(7.58-0.17+0.18)×10-5 eV2 and sin2θ12=0.308±0.013. This fit also yields a first measurement of the flux of geoneutrinos in the Western Hemisphere, with 73-43+47 TNU at SNO+.

Original language	English
Article number	121801
Journal	Physical Review Letters
Volume	135
Issue number	12
DOIs	https://doi.org/10.1103/gypt-lc9v
State	Published - Sep 15 2025
Externally published	Yes

Scopus Subject Areas

General Physics and Astronomy

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10.1103/gypt-lc9v

Cite this

Abreu, M., Albanese, V., Allega, A., Alves, R., Anderson, M. R., Andringa, S., Anselmo, L., Antunes, J., Arushanova, E., Asahi, S., Askins, M., Asner, D. M., Auty, D. J., Back, A. R., Back, S., Bacon, A., Baltazar, T., Barão, F., Barnard, Z., ... Secrest, J. (2025). Measurement of Reactor Antineutrino Oscillation at SNO+. Physical Review Letters, 135(12), Article 121801. https://doi.org/10.1103/gypt-lc9v

@article{127eb892aa0d4061861ff422fb794838,

title = "Measurement of Reactor Antineutrino Oscillation at SNO+",

abstract = "SNO+ Collaboration reports its second spectral analysis of reactor antineutrino oscillation using 286 ton-yr of new data. The measured energies of reactor antineutrino candidates were fitted to obtain the second-most precise determination of the neutrino mass-squared difference Δm212=(7.96-0.42+0.48)×10-5 eV2. Constraining Δm212 and sin2θ12 with measurements from long-baseline reactor antineutrino and solar neutrino experiments yields Δm212=(7.58-0.17+0.18)×10-5 eV2 and sin2θ12=0.308±0.013. This fit also yields a first measurement of the flux of geoneutrinos in the Western Hemisphere, with 73-43+47 TNU at SNO+.",

author = "M. Abreu and V. Albanese and A. Allega and R. Alves and Anderson, \{M. R.\} and S. Andringa and L. Anselmo and J. Antunes and E. Arushanova and S. Asahi and M. Askins and Asner, \{D. M.\} and Auty, \{D. J.\} and Back, \{A. R.\} and S. Back and A. Bacon and T. Baltazar and F. Bar{\~a}o and Z. Barnard and A. Barr and N. Barros and D. Bartlett and R. Bayes and C. Beaudoin and Beier, \{E. W.\} and G. Berardi and Bezerra, \{T. S.\} and A. Bialek and Biller, \{S. D.\} and E. Blucher and A. Boeltzig and R. Bonventre and M. Boulay and D. Braid and E. Caden and Callaghan, \{E. J.\} and J. Caravaca and J. Carvalho and L. Cavalli and D. Chauhan and M. Chen and S. Cheng and O. Chkvorets and Clark, \{K. J.\} and B. Cleveland and C. Connors and D. Cookman and J. Corning and Coulter, \{I. T.\} and J. Secrest",

note = "Publisher Copyright: {\textcopyright} 2025 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP",

year = "2025",

month = sep,

day = "15",

doi = "10.1103/gypt-lc9v",

language = "English",

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Abreu, M, Albanese, V, Allega, A, Alves, R, Anderson, MR, Andringa, S, Anselmo, L, Antunes, J, Arushanova, E, Asahi, S, Askins, M, Asner, DM, Auty, DJ, Back, AR, Back, S, Bacon, A, Baltazar, T, Barão, F, Barnard, Z, Barr, A, Barros, N, Bartlett, D, Bayes, R, Beaudoin, C, Beier, EW, Berardi, G, Bezerra, TS, Bialek, A, Biller, SD, Blucher, E, Boeltzig, A, Bonventre, R, Boulay, M, Braid, D, Caden, E, Callaghan, EJ, Caravaca, J, Carvalho, J, Cavalli, L, Chauhan, D, Chen, M, Cheng, S, Chkvorets, O, Clark, KJ, Cleveland, B, Connors, C, Cookman, D, Corning, J, Coulter, IT & Secrest, J 2025, 'Measurement of Reactor Antineutrino Oscillation at SNO+', Physical Review Letters, vol. 135, no. 12, 121801. https://doi.org/10.1103/gypt-lc9v

TY - JOUR

T1 - Measurement of Reactor Antineutrino Oscillation at SNO+

AU - Abreu, M.

AU - Albanese, V.

AU - Allega, A.

AU - Alves, R.

AU - Anderson, M. R.

AU - Andringa, S.

AU - Anselmo, L.

AU - Antunes, J.

AU - Arushanova, E.

AU - Asahi, S.

AU - Askins, M.

AU - Asner, D. M.

AU - Auty, D. J.

AU - Back, A. R.

AU - Back, S.

AU - Bacon, A.

AU - Baltazar, T.

AU - Barão, F.

AU - Barnard, Z.

AU - Barr, A.

AU - Barros, N.

AU - Bartlett, D.

AU - Bayes, R.

AU - Beaudoin, C.

AU - Beier, E. W.

AU - Berardi, G.

AU - Bezerra, T. S.

AU - Bialek, A.

AU - Biller, S. D.

AU - Blucher, E.

AU - Boeltzig, A.

AU - Bonventre, R.

AU - Boulay, M.

AU - Braid, D.

AU - Caden, E.

AU - Callaghan, E. J.

AU - Caravaca, J.

AU - Carvalho, J.

AU - Cavalli, L.

AU - Chauhan, D.

AU - Chen, M.

AU - Cheng, S.

AU - Chkvorets, O.

AU - Clark, K. J.

AU - Cleveland, B.

AU - Connors, C.

AU - Cookman, D.

AU - Corning, J.

AU - Coulter, I. T.

AU - Secrest, J.

N1 - Publisher Copyright: © 2025 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP

PY - 2025/9/15

Y1 - 2025/9/15

N2 - SNO+ Collaboration reports its second spectral analysis of reactor antineutrino oscillation using 286 ton-yr of new data. The measured energies of reactor antineutrino candidates were fitted to obtain the second-most precise determination of the neutrino mass-squared difference Δm212=(7.96-0.42+0.48)×10-5 eV2. Constraining Δm212 and sin2θ12 with measurements from long-baseline reactor antineutrino and solar neutrino experiments yields Δm212=(7.58-0.17+0.18)×10-5 eV2 and sin2θ12=0.308±0.013. This fit also yields a first measurement of the flux of geoneutrinos in the Western Hemisphere, with 73-43+47 TNU at SNO+.

AB - SNO+ Collaboration reports its second spectral analysis of reactor antineutrino oscillation using 286 ton-yr of new data. The measured energies of reactor antineutrino candidates were fitted to obtain the second-most precise determination of the neutrino mass-squared difference Δm212=(7.96-0.42+0.48)×10-5 eV2. Constraining Δm212 and sin2θ12 with measurements from long-baseline reactor antineutrino and solar neutrino experiments yields Δm212=(7.58-0.17+0.18)×10-5 eV2 and sin2θ12=0.308±0.013. This fit also yields a first measurement of the flux of geoneutrinos in the Western Hemisphere, with 73-43+47 TNU at SNO+.

UR - https://www.scopus.com/pages/publications/105017833157

U2 - 10.1103/gypt-lc9v

DO - 10.1103/gypt-lc9v

M3 - Article

C2 - 41046433

AN - SCOPUS:105017833157

SN - 0031-9007

VL - 135

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 121801

ER -

Measurement of Reactor Antineutrino Oscillation at SNO+

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