Title of Paper:Chiral criticality and glue dynamics

Hits:

Date of Publication:2019-07-01

Journal:CHINESE PHYSICS C

Included Journals:SCIE

Volume:43

Issue:7

ISSN No.:1674-1137

Key Words:chiral symmetries; renormalization group methods; quark-gluon plasma; color confinement

Abstract:The chiral order-parameter sigma field and its higher-order cumulants of fluctuations are calculated within the functional renormalization group approach by adopting the local potential approximation in this study. The influence of glue dynamics on fluctuations of the sigma field is investigated, and we find that they are weakly affected. This is in sharp contrast to the baryon number fluctuations, which are sensitive to the glue dynamics and involve information on the color confinement. The implications of our calculated results are discussed from the viewpoint of the theoretical and experimental efforts in the search for the QCD critical end point.