P odd fluctuations and Long Range Order in Heavy Ion Collisions. Deformed QCD as a Toy Model

TL;DR

This paper investigates P and CP violation phenomena in heavy ion collisions using a simplified deformed QCD model to understand long-range order and vacuum configurations responsible for observed asymmetries.

Contribution

It introduces a weakly coupled gauge theory model that captures essential features of strongly coupled QCD to study P and CP violation and long-range order in heavy ion collisions.

Findings

Identification of vacuum configurations linked to asymmetries

Insights into long-range order in QCD-like theories

Model reproduces key features of experimental observations

Abstract

We study the local violation of P and CP invariance in heavy ion collisions as observed at RHIC and LHC using a simple "deformed QCD" model. This model is a weakly coupled gauge theory, which however has all the relevant crucial elements allowing us to study difficult and nontrivial questions which are known to be present in real strongly coupled QCD. Essentially, we want to understand the physics of long range order in form of coherent low dimensional vacuum configurations observed in Monte Carlo lattice simulations. Apparently precisely such kind of configurations are responsible for sufficiently strong intensity of asymmetries observed in heavy ion collisions.