Neutrino - electron processes in a strong magnetic field and plasma

Abstract

The total set of the neutrino - electron processes in a presence of both components of an active medium, hot dense plasma and strong magnetic field, is investigated for the first time. The contribution of the processes $νe^- \to νe^-$, $νe^+ \to νe^+$, $ν\to νe^- e^+$, $νe^- e^+ \to ν$ is shown to dominate and not to depend on the chemical potential of electron-positron gas. Relatively simple expressions for the probability and mean losses of the neutrino energy and momentum are obtained, which are suitable for a quantitative analysis.