2008/10/21 by B. Jamieson, Jamieson, Blair
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #Neutrino Physics Research #Nuclear Experiment (nucl-ex)
paper · pdf · doi:10.48550/arxiv.0810.3760
openalex publication_date 2008/10/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The Sudbury Neutrino Observatory has measured the 8B solar neutrino flux\nusing an array of 3He proportional counters. Results obtained using a\nMarkov-Chain Monte-Carlo (MCMC) parameter estimation, integrating over a\nstandard extended likelihood, yield effective neutrino fluxes of:\nphinc=5.54+0.33-0.31(stat)+0.36-0.34(syst) x 106 /cm2/s,\nphicc=1.67+0.05-0.04(stat)+0.07-0.08(syst) x 106 /cm2/s, and\nphies=1.77+0.24-0.21(stat)+0.09-0.10(syst) x 106 /cm2/s. These measurements\nare in agreement with previous solar neutrino flux measurements, and with\nneutrino oscillation model results. Including these flux measurements in a\nglobal analysis of solar and reactor neutrino results yields an improved\nprecision on the solar neutrino mixing angle of theta=34.4+1.3-1.2 degrees, and\nDelta m2=7.59+0.19-0.21 eV2.\n