Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-04-24
Phys.Lett. B540 (2002) 14-19
Physics
High Energy Physics
High Energy Physics - Phenomenology
Latest data included, minor clarifications and a reference added; final version to appear in PLB
Scientific paper
10.1016/S0370-2693(02)02138-X
We perform model independent and model dependent analyses of solar neutrino data including the neutral current event rate from SNO. The inclusion of the first SNO NC data in the model independent analysis determines the allowed ranges of $^{8}{B}$ flux normalisation and the $\nu_e$ survival probability more precisely than what was possible from the SK and SNO CC combination. We perform global $\nu_e-\nu_{active}$ oscillation analyses of solar neutrino data using the NC rate instead of the SSM prediction for the $^{8}{B}$ flux, in view of the large uncertainty in the latter. The LMA gives the best solution, while the LOW solution is allowed only at the $3\sigma$ level.
Bandyopadhyay Abhijit
Choubey Sandhya
Goswami Srubabati
Roy David P.
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