Probing the Solar B 8 Neutrino Fog with XENONnT

@article{aprile2026probing,
  title = {{Probing the Solar B 8 Neutrino Fog with XENONnT}},
  author = {Elena Aprile and J. Aalbers and K. Abe and M. M. Abu Rmeileh and M. Adrover and S. Ahmed Maouloud and L. Althueser and B. Andrieu and Emanuele Angelino and D. Ant'on Martin and S. R. Armbruster and F. Arneodo and L. Baudis and M. Bazyk and V. Beligotti and L. Bellagamba and R. Biondi and A. Bismark and K Boese and R. Braun and G. Bruni and R. Budnik and C. Cai and C. Capelli and J. M. R. Cardoso and A. P. Cimental Chávez and A. P. Colijn and J. Conrad and J. J. Cuenca-García and Valerio D’Andrea and L. C. Daniel Garcia and M. P. Decowski and A. Deisting and C. Di Donato and P. Di Gangi and S. Diglio and K. Eitel and S. el Morabit and R Elleboro and A. Elykov and A. D. Ferella and C. Ferrari and H. Fischer and T Flehmke and M. Flierman and R. Frankel and D. Fuchs and Walter Fulgione and C. Fuselli and F. Gao and R Giacomobono and F. Girard and R. Glade-Beucke and L. Grandi and J. Grigat and H. Guan and M. Guida and P Gyorgy and R. Hammann and C. Hils},
  journal = {Physical Review Letters},
  year = {2026},
  month = jul,
  doi = {10.1103/xvpn-w3q9},
  url = {https://doi.org/10.1103/xvpn-w3q9},
  note = {CC BY},
}

TY  - JOUR
TI  - Probing the Solar B 8 Neutrino Fog with XENONnT
AU  - Elena Aprile
AU  - J. Aalbers
AU  - K. Abe
AU  - M. M. Abu Rmeileh
AU  - M. Adrover
AU  - S. Ahmed Maouloud
AU  - L. Althueser
AU  - B. Andrieu
AU  - Emanuele Angelino
AU  - D. Ant'on Martin
AU  - S. R. Armbruster
AU  - F. Arneodo
AU  - L. Baudis
AU  - M. Bazyk
AU  - V. Beligotti
AU  - L. Bellagamba
AU  - R. Biondi
AU  - A. Bismark
AU  - K Boese
AU  - R. Braun
AU  - G. Bruni
AU  - R. Budnik
AU  - C. Cai
AU  - C. Capelli
AU  - J. M. R. Cardoso
AU  - A. P. Cimental Chávez
AU  - A. P. Colijn
AU  - J. Conrad
AU  - J. J. Cuenca-García
AU  - Valerio D’Andrea
AU  - L. C. Daniel Garcia
AU  - M. P. Decowski
AU  - A. Deisting
AU  - C. Di Donato
AU  - P. Di Gangi
AU  - S. Diglio
AU  - K. Eitel
AU  - S. el Morabit
AU  - R Elleboro
AU  - A. Elykov
AU  - A. D. Ferella
AU  - C. Ferrari
AU  - H. Fischer
AU  - T Flehmke
AU  - M. Flierman
AU  - R. Frankel
AU  - D. Fuchs
AU  - Walter Fulgione
AU  - C. Fuselli
AU  - F. Gao
AU  - R Giacomobono
AU  - F. Girard
AU  - R. Glade-Beucke
AU  - L. Grandi
AU  - J. Grigat
AU  - H. Guan
AU  - M. Guida
AU  - P Gyorgy
AU  - R. Hammann
AU  - C. Hils
PY  - 2026
DA  - 2026/07/10
JO  - Physical Review Letters
DO  - 10.1103/xvpn-w3q9
UR  - https://doi.org/10.1103/xvpn-w3q9
AB  - We report a 3.3σ measurement of coherent elastic neutrino-nucleus scattering from solar ^{8}B neutrinos using a 6.77 t×yr exposure from the XENONnT experiment, inferring a solar ^{8}B neutrino flux of (5_{-2}^{+3})×10^{6} cm^{-2} s^{-1}, consistent with previous measurements. In the presence of the ^{8}B "neutrino fog," we find no evidence for light dark matter, and observe diminishing returns in sensitivity with increasing exposure. A 93% increase in exposure from the previous search improves the median sensitivity to the nucleon scattering cross section for a 5 GeV/c^{2} spin-independent weakly interacting massive particle by 10%. The dataset was also used to measure the weak mixing angle at ∼0.02 GeV/c momentum transfer and constrain physics beyond the Standard Model.
SN  - 0031-9007
SN  - 1079-7114
SN  - 1092-0145
ER  -