Neutrino processes $\nu \bar\nu \to e^- e^+$ and $\nu \to \nu e^- e^+$ in a strong magnetic field

TL;DR

This paper analyzes neutrino-induced electron-positron pair production processes in strong magnetic fields, considering excited Landau levels, with applications to electron-positron plasma generation in black hole accretion disks relevant to gamma-ray bursts.

Contribution

It provides a detailed analysis of neutrino processes in magnetic fields of arbitrary strength, including excited Landau levels, for the first time in this context.

Findings

Calculated neutrino-induced pair production rates in strong magnetic fields.

Applied results to electron-positron plasma production in black hole accretion disks.

Enhanced understanding of neutrino processes relevant to gamma-ray burst models.

Abstract

The processes of neutrino production of electron-positron pairs, $\nu \bar\nu \to e^- e^+$ and $\nu \to \nu e^- e^+$, in a magnetic field of arbitrary strength, where electrons and positrons can be created in the states corresponding to excited Landau levels, are analysed. The results can be applied for calculating the efficiency of the electron-positron plasma production by neutrinos in the conditions of the Kerr black hole accretion disc considered by experts as the most possible source of a short cosmological gamma burst.