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Global oscillation analysis of solar neutrino data with helioseismically constrained fluxes
A seismic model for the Sun calculated using the accurate helioseismic data
predicts a lower neutrino flux as compared to the standard solar
model (SSM). However, there persists a discrepancy between the predicted and
measured neutrino fluxes and it seems necessary to invoke neutrino oscillations
to explain the measurements. In this work, we have performed a global, unified
oscillation analysis of the latest solar neutrino data (including the results
of SNO charged current rate) using the seismic model fluxes as theoretical
predictions. We determine the best-fit values of the neutrino oscillation
parameters and the for both
and cases and present the allowed parameter
regions in the plane for transition. The results are compared with those obtained using the
latest SSM by Bahcall and his collaborators.Comment: Version to appear in Phys. Rev.
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