Abstract
Solar neutrino measurements from 1258 days of data from the Super-Kamiokande detector are presented. The measurements are based on recoil electrons in the energy range 5.0–20.0 MeV. The measured solar neutrino flux is , which is of that predicted by the BP2000 SSM. The day vs night flux asymmetry is . The recoil electron energy spectrum is consistent with no spectral distortion. For the hep neutrino flux, we set a C.L. upper limit of , which is 4.3 times the BP2000 SSM prediction.
- Received 19 March 2001
DOI:https://doi.org/10.1103/PhysRevLett.86.5651
©2001 American Physical Society