First Evidence of Solar Neutrino Interactions on <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:mmultiscripts> <mml:mrow> <mml:mi mathvariant="normal">C</mml:mi> </mml:mrow> <mml:mprescripts/> <mml:none/> <
The SNO+ Collaboration reports the first evidence of ^{8}B solar neutrinos interacting on ^{13}C nuclei. The charged current interaction proceeds through ^{13}C+ν_{e}→^{13}N+e^{-} which is followed, with a 10 minute half life, by ^{13}N→^{13}C+e^{+}+ν_{e}. The detection strategy is based on the delayed coincidence between the electron and the positron. Evidence for the charged current signal is presented with a significance of 4.2σ. Using the natural abundance of ^{13}C present in the scintillator, 5.7 metric tons of ^{13}C over 231 days of data were used in this analysis. The 5.6_{-2.3}^{+3.0} observed events in the data set are consistent with the expectation of 4.7_{-1.3}^{+0.6} events. This result is the second real-time measurement of CC interactions of ^{8}B neutrinos with nuclei and constitutes the lowest energy observation of neutrino interactions on ^{13}C generally. This enables the first direct measurement of the CC ν_{e} reaction to the ground state of ^{13}N, yielding an average cross section of (16.1_{-6.7}^{+8.5}(stat.)_{-2.7}^{+1.6}(syst.))×10^{-43} cm^{2} over the relevant ^{8}B solar neutrino energies.
Authors
- M. Yeh (ORCID: https://orcid.org/0000-0003-2244-0499)
- J. Rose
- R. Rosero
- R. Dehghani
- D. M. Asner
- S. Maguire
- J. Deloye
- A. Gaur (ORCID: https://orcid.org/0000-0002-4379-7975)
- J. Corning
- N. McCauley
- E. Vázquez-Jáuregui
- D. J. Auty
- A. S. Inácio (ORCID: https://orcid.org/0000-0002-3684-5908)
- E. Caden (ORCID: https://orcid.org/0000-0003-3455-7854)
- S. Riccetto
- C. J. Virtue
- F. Di Lodovico
- D. Gooding
- B. Krar
- C. Kraus
- W. J. Heintzelman
- R. Hunt-Stokes
- S. H. Cheng (ORCID: https://orcid.org/0000-0001-9954-7986)
- M. Chen
- C. Raymond Lake
- Muhammad Mubasher
- J. D. Wilson
- S. Yang (ORCID: https://orcid.org/0000-0002-0204-984X)
- M. M. Depatie
- B. Tam (ORCID: https://orcid.org/0000-0002-7189-7498)
- F. Barão (ORCID: https://orcid.org/0000-0002-8346-9941)
- Tânia Baltazar (ORCID: https://orcid.org/0000-0001-5071-5037)
- S. S. Yu (ORCID: https://orcid.org/0000-0002-6011-8516)
- P. Ravi
- J. Dittmer
- C. Lefebvre (ORCID: https://orcid.org/0000-0002-5363-4942)
- John Simms (ORCID: https://orcid.org/0000-0002-4675-0902)
- H. M. O’Keeffe (ORCID: https://orcid.org/0000-0002-4593-3598)
- C. Grant (ORCID: https://orcid.org/0000-0002-2328-1728)
- A. Allega
- K. H. Dixon
- L. Lebanowski (ORCID: https://orcid.org/0000-0002-8255-6613)
- C. J. Jillings
- M.C. Abreu (ORCID: https://orcid.org/0000-0003-0093-7496)
- B. Hreljac
- A. Bacon (ORCID: https://orcid.org/0000-0002-5747-5328)
- N. Barros (ORCID: https://orcid.org/0000-0002-1192-0705)
- J. Maneira (ORCID: https://orcid.org/0000-0002-3222-2738)
- S. Andringa (ORCID: https://orcid.org/0000-0002-6397-9207)
- D. Cookman (ORCID: https://orcid.org/0000-0001-9385-1194)
- A. Zummo
- G. D. Orebi Gann (ORCID: https://orcid.org/0000-0003-4096-0180)
- L. L. Kormos (ORCID: https://orcid.org/0000-0002-0955-1672)
- Sanjoy Kumar Pal (ORCID: https://orcid.org/0000-0002-4245-9325)
- S. Kaluzienski
- Daniel A. Morris (ORCID: https://orcid.org/0000-0001-8655-7691)
- A. Białek
- M. R. Anderson
- Y. Zhang
- G.M. Milton (ORCID: https://orcid.org/0000-0003-4541-1535)
- O. I. González-Reina (ORCID: https://orcid.org/0000-0003-1534-0916)
- V. Lozza (ORCID: https://orcid.org/0000-0002-9521-8517)
- D. Hallman
- C. B. Krauss
- Jianfeng Shen (ORCID: https://orcid.org/0000-0001-9779-6225)
- M. Smiley
- Tereza Kroupova (ORCID: https://orcid.org/0000-0002-5219-2468)
- B. Quenallata
- K. Paleshi
- C. Dima
- M. S. Esmaeilian
- J. Kladnik
- Fang Wang (ORCID: https://orcid.org/0000-0002-3044-0571)
- M. Luo (ORCID: https://orcid.org/0000-0002-9709-7181)
- Z. Ye (ORCID: https://orcid.org/0000-0002-1873-2344)
- John R. Klein
- A. Reichold
- S. Manecki
- Reda Tafirout
- M. Hebert
- R. Bayes (ORCID: https://orcid.org/0000-0002-1192-0705)
- N. Fatemighomi
- W. Parker
- A. L. Hallin
- J. C-L. Tseng (ORCID: https://orcid.org/0000-0003-1731-5853)
- J. R. Wilson (ORCID: https://orcid.org/0000-0002-6647-1193)
- P. Skensved
- L. J. Nolan
- L. Pickard
- S. Ouyang
- R. D. Martín
- S. D. Biller
- T. Kaptanoglu
- S. Naugle
- Ping Huang (ORCID: https://orcid.org/0009-0001-8321-7410)
- M. Ward
- B. T. Cleveland
- A. Wright
- R. L. Helmer
- R. Bayes (ORCID: https://orcid.org/0000-0001-9886-5763)
- J. E. Grove
- C. Hewitt
- A. B. McDonald
- K. Zuber
- R. Ford
- S. Hall
- E. Falk
- J. Page
- E. E. Khoda (ORCID: https://orcid.org/0000-0002-8340-9455)
- S. DeGraw
- S. Gadamsetty
Institutions
- Boston University (US)
- TRIUMF (CA)
- University of Lisbon (PT)
- University of Liverpool (GB)
- Lawrence Berkeley National Laboratory (US)
- Shandong University (CN)
- University of Alberta (CA)
- University of Sussex (GB)
- King's College London (GB)
- Brookhaven National Laboratory (US)
- Queen's University (CA)
- LIP - Laboratory of Instrumentation and Experimental Particle Physics (PT)
- California University of Pennsylvania (US)
- University of Oxford (GB)
- Laurentian University (CA)
- Lancaster University (GB)
- University of Coimbra (PT)
- Technische Universität Dresden (DE)
- University of Pennsylvania (US)
- Shandong University of Science and Technology (CN)
- Universidad Nacional Autónoma de México (MX)
- Philadelphia University (US)
- University of California, Berkeley (US)
- University of Minho (PT)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-10-27
- DOI
- https://doi.org/10.1103/1frl-95gj
- Citations
- 1
- Primary Topic
- Neutrino Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 1.87