Contraction of electroweak model can explain the interactions neutrinos with matter

Abstract

The very rare interactions neutrinos with matter and the dependence of the corresponding cross-section on neutrinos energy are explained as contraction of the gauge group of the Electroweak Model already at the level of classical gauge fields. Small contraction parameter is connected with the universal Fermi constant of weak interactions and neutrino energy as \(^2 (s) = \sqrt {G_{F^S } }\).