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

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

2002-03-18

arxiv.org/abs/hep-ph/0203169v2

Mod.Phys.Lett. A17 (2002) 1455-1464

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1142/S021773230200734X

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 $^8B$ 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.

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