Matter Effects in Solar Neutrino Active-Sterile Oscillations

Details Matter Effects in Solar Neutrino Active-Sterile Oscillations Matter Effects in Solar Neutrino Active-Sterile Oscillations

2009-11-20

arxiv.org/abs/0911.3934v1

Progress in Particle and Nuclear Physics 64 (2010), pp.213-215

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages 1 figure, based on talk YFL gave at Erice 2009 Neutrinos in Cosmology, in Astro-, Particle- and Nuclear Physics

Scientific paper

10.1016/j.ppnp.2009.12.013

We study the matter effects for solar neutrino oscillations in a general scheme, without any constraint on the number of sterile neutrinos and the mixing matrix elements, only assuming a realistic hierarchy of neutrino squared-mass differences in which the smallest squared-mass difference is effective in solar neutrino oscillations. The validity of the analytic results are illustrated with a numerical solution of the evolution equation in the simplest case of four-neutrino mixing with the realistic matter density profile inside the Sun.

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