Hadronic Lorentz violation in chiral perturbation theory

TL;DR

This paper explores how Lorentz violation at the quark and gluon level can be related to observable effects in hadronic systems using chiral perturbation theory, addressing the complexities of nonperturbative QCD.

Contribution

It demonstrates the application of chiral perturbation theory to connect Lorentz-violating operators at the fundamental and hadronic levels.

Findings

Established relationships between quark/gluon Lorentz violation and hadronic observables

Provided a framework for calculating Lorentz-violating effects in hadronic systems

Enhanced understanding of Lorentz violation implications in low-energy QCD

Abstract

Lorentz violation in hadronic systems is related to Lorentz-violating operators of quarks and gluons. Due to the nonperturbative nature of quantum chromodynamics (QCD) at low energies, establishing these relationships is complex. Chiral perturbation theory (ChPT) is an effective theory that provides one method of connecting quark- and gluon-level operators to those at the hadronic level, which can be used to calculate hadronic observables.