Propagation of field disturbances in the Yang-Mills theory

TL;DR

This paper investigates how disturbances propagate in the effective Yang-Mills theory relevant to QCD, revealing conditions under which birefringence occurs and discussing potential phenomenological implications.

Contribution

It demonstrates the possibility of birefringence in Yang-Mills systems under certain conditions, expanding understanding of field disturbance propagation in QCD.

Findings

Birefringence can occur in Yang-Mills systems.

Propagation conditions depend on causality constraints.

Potential phenomenological applications are discussed.

Abstract

The propagation of field disturbances is examined in the context of the effective Yang-Mills Lagrangian, which is intended to be applied to QCD systems. It is shown that birefringence phenomena can occur in such systems provided some restrictive conditions, as causality, are fulfilled. Possible applications to phenomenology are addressed.