Electron-neutrino survival probability from solar-neutrino data

Abstract

With SNO data on electron-neutrino flux from the sun, it is possible to derive the ${\nu }_e$ survival probability $P_{ee}(E)$ from existing experimental data of Super-Kamiokande, gallium experiments and Homestake. The combined data of SNO and Super-Kamiokande provide boron ${\nu }_e$ flux and the total flux of all active boron neutrinos, giving thus $P_{ee}(E)$ for boron neutrinos. The Homestake detector, after subtraction of the signal from boron neutrinos, gives the flux of Be+CNO neutrinos, and $P_{ee}$ for the corresponding energy interval, if the produced flux is taken from the Standard Solar Model (SSM). Gallium detectors, GALLEX, SAGE and GNO, detect additionally pp-neutrinos. The pp-flux can be calculated subtracting from the gallium signal the rate due to boron, beryllium and CNO neutrinos. The ratio of the measured $pp$-neutrino flux to that predicted by the SSM gives the survival probability for $pp$-neutrinos. Comparison with theoretical survival probabilities shows that the best (among known models) fit is given by LMA and LOW solutions.

9 pages, 3 figures, references added

References in corpus (2)

• Solar 8B and hep Neutrino Measurements from 1258 Days of Super-Kamiokande Data
• Solar neutrino event spectra: Tuning SNO to equalize Super-Kamiokande

Cited by in corpus (14)

• Imprint of SNO neutral current data on the solar neutrino problem
• Global Analysis with SNO: Toward the Solution of the Solar Neutrino Problem
• Solar neutrino probes of the muon anomalous magnetic moment in the gauged $U(1{)}_{L_{\mu }-L_{\tau }}$
• Bayesian View Of Solar Neutrino Oscillations
• Super-Kamiokande hep neutrino best fit: a possible signal of nonmaxwellian solar plasma
• Model Independent Information On Solar Neutrino Oscillations
• Solar neutrino oscillations and indications of matter effects in the Sun
• Probing the Sun's inner core using solar neutrinos: a new diagnostic method
• SNO, SuperKamiokande data, antineutrinos and sterile neutrinos
• Implications of recent solar neutrino observations: an analysis of charged current data
• Seasonal Variations of the Effect from Solar Neutrinos in Lithium Detector
• Essential Solar Neutrinos
• Neutrino decoherence and violation of the strong equivalence principle
• Neutrino Decoherence via Modified Dispersion