Consequences of the MSW mechanism with Super-Kamiokande oscillation parameters and of the volume distribution of neutrino sources in the Sun

Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University - Moscow 119991, Russia

^(a) slad@theory.sinp.msu.ru (corresponding author)

Received: 13 April 2021
Accepted: 25 October 2021

Abstract

The knowledge of the parameters of the solar neutrino oscillation model, provided by the SNO and Super-Kamiokande Collaborations, enables us to obtain, with the Wolfenstein equation, a simple and clear analytical and numerical picture of the transformation of the neutrino state during its travel inside the Sun. We show that the resulting picture is not implicated in the characteristics of the neutrino state at the surface of the Sun and at the surface of the Earth. This circumstance with taking into account the volume distribution of solar neutrino sources indicates an obvious contradiction between the consequences of the MSW mechanism with parameters from SNO and Super-Kamiokande and the results of three of the five observed processes with solar neutrinos. The assertions at the base of the MSW mechanism are discussed.