Stellar Energy Loss Rates from Photoneutrino Process in Minimal Extension Standard Model

TL;DR

This paper derives analytic formulas for stellar energy loss rates via neutrino pair production in a hot plasma, considering neutrino charge radius and anapole moments, showing about 10% increased contribution over previous models.

Contribution

It introduces a minimal Standard Model extension accounting for neutrino electromagnetic properties to refine stellar energy loss calculations.

Findings

Approximately 10% increase in energy loss rate calculations.

Analytic expressions derived for three plasma regimes.

Enhanced understanding of neutrino emission in stellar environments.

Abstract

Using the minimal extension of Standard Model taking into account the charge radius and the anapole moments of neutrino, we have derived analytic expressions for the stellar energy loss rates due to the production of the neutrino pair process $e^- + \gamma \rightarrow e^- + \nu_e +\overline{\nu_e}$ in a hot plasma for three limiting regimes (nondegenerate, intermediate and degenerate electrons) of temperature, the electron's chemical potential and plasma's energy. Obtained results show that there is approximately extra $10\%$ contribution by using the considered calculations.