Neutrino - electron processes in a strong magnetic field and plasma

TL;DR

This paper investigates neutrino-electron interactions in hot dense plasma with strong magnetic fields, providing simplified formulas for their probabilities and energy losses, crucial for astrophysical models.

Contribution

It presents the first comprehensive analysis of neutrino-electron processes in combined plasma and magnetic field environments, deriving practical expressions for their probabilities and energy losses.

Findings

Neutrino-electron processes dominate in the studied environment.

Process probabilities are independent of electron-positron gas chemical potential.

Derived formulas facilitate quantitative analysis of neutrino energy losses.

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 $\nu e^- \to \nu e^-$, $\nu e^+ \to \nu e^+$, $\nu \to \nu e^- e^+$, $\nu e^- e^+ \to \nu$ 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.