Neutrino helicity effects on the effective crosssection of the pair annihilation in a very hot stellar medium

Jabbour, Jabbour; Mulhem, Jehad; Hossain, Khawla

Communication science et technologie
Volume 17, Numéro 1, Pages 74-86
2019-01-01

Neutrino Helicity Effects On The Effective Crosssection Of The Pair Annihilation In A Very Hot Stellar Medium

Authors : Jabbour Jabbour . Mulhem Jehad . Hossain Khawla .

Abstract

In this study, the effective differential cross-section of the lepton interactions usually obtained in very hot stars was calculated, taking into account the influence of weak currents, and the effect of electromagnetic form factors of neutrino on differential cross sections. The effects of neutrino helicity and antineutrino helicity, and Polarizing effects of the electron and positron on the effective cross-sections in the center mass system were studied. The relationship of these crosssections with the energy of center mass system was indicated.