The critical end point through observables

TL;DR

This paper models the critical phenomena of strongly interacting matter at high temperatures and densities, focusing on the critical end point (CEP) influenced by quantum fluctuations and chiral dynamics.

Contribution

It introduces a dual Yang-Mills theory with dilatons to describe phase transitions and the physical realization of the CEP through quantum fluctuations and Bose-Einstein correlations.

Findings

Identification of the CEP as a singular feature dictated by chiral dynamics

Proposal of quantum fluctuations of two-body correlations as observable signatures

Use of dilaton fields to model spontaneous scale symmetry breaking

Abstract

We develop the model of the critical phenomena of strongly interacting matter at high temperatures and baryon densities. The dual Yang-Mills theory with scalar degrees of freedom (the dilatons) is used. The dilatons are the consequence of a spontaneous breaking of a scale symmetry. The phase transitions are considered in systems where the field conjugate to the order parameter has the critical end mode. The critical end point (CEP) is a distinct singular feature existence of which is dictated by the chiral dynamics. The physical realization of CEP is via the influence quantum fluctuations of two-body Bose-Einstein correlations for observed particles to which the critical end mode couples.