Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-06-15
Phys.Rev. D64 (2001) 113001
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version to appear in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.64.113001
A seismic model for the Sun calculated using the accurate helioseismic data predicts a lower $^{8}{B}$ 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 $\chi^2_{\mathrm min}$ for both $\nu_e-\nu_{\mathrm active}$ and $\nu_e -\nu_{\mathrm sterile}$ cases and present the allowed parameter regions in the $\Delta m^2 - \tan^2 \theta$ plane for $\nu_e-\nu_{\mathrm active}$ transition. The results are compared with those obtained using the latest SSM by Bahcall and his collaborators.
Antia H. M.
Chitre S. M.
Choubey Sandhya
Goswami Srubabati
Kar Kamales
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