Nonminimal Lorentz-Violating Extensions of Gauge Field Theories

TL;DR

This paper develops a comprehensive method to construct gauge-invariant terms in gauge theories and applies it to set initial bounds on Lorentz violation coefficients through specific experiments.

Contribution

It introduces a general approach for building gauge-invariant extensions that include nonminimal Lorentz-violating terms in gauge field theories.

Findings

First bounds on nonminimal Lorentz-violating coefficients from light-by-light scattering.

Constraints derived from deep inelastic scattering experiments.

Method applicable to various gauge theories for Lorentz violation analysis.

Abstract

A general method is presented to build all gauge-invariant terms in gauge field theories, including quantum electrodynamics and quantum chromodynamics. It is applied to two experiments, light-by-light scattering and deep inelastic scattering, to extract first bounds on certain nonminimal coefficients for Lorentz violation.