Effects of the CPT-even and Lorentz violation on the Bhabha scattering at finite temperature

TL;DR

This paper investigates how Lorentz-violating CPT-even couplings and finite temperature influence Bhabha scattering, revealing modifications in the differential cross-section due to these effects using Thermo-Field Dynamics formalism.

Contribution

It introduces a new interaction term between fermions and photons and analyzes its impact on Bhabha scattering at finite temperature.

Findings

Differential cross-section is affected by Lorentz violation.

Finite temperature modifies scattering outcomes.

Lorentz-violating effects are observable at finite temperature.

Abstract

In this paper a Lorentz-violating CPT-even non-minimal coupling term is considered. A new interaction term between fermions and photons emerges. In this context, the differential cross-section for Bhabha scattering at finite temperature is calculated. The temperature effects are introduced using the Thermo- Field Dynamics (TFD) formalism. It is shown that the differential cross-section is changed due to both effects, Lorentz violation and finite temperature.