Probing Lorentz violating effects on the exclusive $e^+e^-$ production in ultraperipheral heavy-ion collisions

TL;DR

This paper investigates how Lorentz violating effects influence exclusive electron-positron production in ultraperipheral heavy-ion collisions at the LHC, providing new constraints on LV parameters through cross-section analysis.

Contribution

It introduces a novel analysis of Lorentz violating effects on $e^+e^-$ production in heavy-ion collisions, estimating sensitivity to LV couplings and improving existing bounds.

Findings

Differential and total cross-sections are calculated.

Sensitivity to time-like LV couplings is estimated.

Results suggest improved bounds on LV terms.

Abstract

The impact of Lorentz violating (LV) terms on the exclusive $e^+e^-$ production in ultraperipheral heavy-ion collisions at the Large Hadron Collider (LHC) is investigated, considering vectorial and axial couplings. Results for the differential and total cross-sections are presented, and the sensitivity to a time-like coupling is estimated. Our results indicate that this process can improve the current upper bounds on the LV terms.