What can the SNO Neutral Current Rate teach us about the Solar Neutrino Anomaly

Abstract

We investigate how the anticipated neutral current rate from $SNO$ will sharpen our understanding of the solar neutrino anomaly. Quantitative analyses are performed with representative values of this rate in the expected range of $0.8-1.2$. This would provide a $5-10\sigma$ signal for ${\nu }_e$ transition into a state containing an active neutrino component. Assuming this state to be purely active one can estimate both the ${}^{8}B$ neutrino flux and the ${\nu }_e$ survival probability to a much higher precision than currently possible. Finally the measured value of the $NC$ rate will have profound implications for the mass and mixing parameters of the solar neutrino oscillation solution.

Brief discussion on the first NC result from SNO added; final version to be published in the MPLA

References in corpus (7)

• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Global Analysis of Solar Neutrino Oscillations Including SNO CC Measurement
• Model-dependent and independent implications of the first Sudbury Neutrino Observatory results
• Unknowns after the SNO Charged-Current Measurement
• Impact of the first SNO results on Neutrino Mass and Mixing
• Reviving the energy independent suppression of the solar neutrino flux
• Are there nu_mu or nu_tau in the flux of solar neutrinos on earth?

Cited by in corpus (3)

• Constraints on neutrino oscillation parameters from the SNO salt phase data
• Cornering Solar Radiative-Zone Fluctuations with KamLAND and SNO Salt
• Large mixing angle oscillations as a probe of the deep solar interior