Solar neutrino data, solar model uncertainties and solar matter-enhanced neutrino oscillations

Details Solar neutrino data, solar model uncertainties and solar matter-enhanced neutrino oscillations Solar neutrino data, solar model uncertainties and solar matter-enhanced neutrino oscillations

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aph.....2...91f&link_type=abstract

Astroparticle Physics, Volume 2, Issue 1, p. 91-99.

Physics

19

Scientific paper

The most recent data of the four solar neutrino experiments - Homestake, Kamiokande, GALLEX and SAGE - are analyzed and compared in the framework of the matter-enhanced neutrino oscillation mechanism (MSW effect), by including in a consistent way, together with the experimental errors, also all the uncertainties affecting Bahcall's version of the Standard Solar Model. A clear picture is seen to emerge, with only two small regions in the (sin22θ/cos 2θ, /gDm2) plane compatible at the 95% C.L. with the flux measurements of the four experiments: a ``small angle solution'' and a ``large angle solution'', the former clearly preferred by the data. The distortions induced on these solutions by flavour-changing neutral currents generated by non-conventional (supersymmetric) interactions are also estimated.

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