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arXiv · hep-ph/0404042

Toward precision measurements in solar neutrinos

P. C. de Holanda·Wei Liao·A. Yu. Smirnov
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Abstract

Solar neutrino physics enters a stage of precision measurements. In this connection we present a precise analytic description of the neutrino conversion in the context of LMA MSW solution of the solar neutrino problem. Using the adiabatic perturbation theory we derive an analytic formula for the $ν_e$ survival probability which takes into account the non-adiabatic corrections and the regeneration effect inside the Earth. The probability is averaged over the neutrino production region. We find that the non-adiabatic corrections are of the order $10^{-9}-10^{-7}$. Using the formula for the Earth regeneration effect we discuss features of the zenith angle dependence of the $ν_e$ flux. In particular, we show that effects of small structures at the surface of the Earth can be important.

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P. C. de Holanda, Wei Liao, A. Yu. Smirnov. 2004-10-04. Toward precision measurements in solar neutrinos. https://doi.org/10.1016/j.nuclphysb.2004.09.027

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