Driving chiral phase transition with ring diagram
High Energy Physics - Phenomenology
2022-09-22 v2 High Energy Physics - Theory
Nuclear Theory
Abstract
We study the dressing of four-quark interaction by the ring diagram, and its feeding back to the quark gap equation, in an effective chiral quark model. Implementing such an in-medium coupling naturally reduces the chiral transition temperature in a class of chiral models, and is capable of generating the inverse magnetic catalysis at finite temperatures. We also demonstrate the important role of confining forces, via the Polyakov loop, in a positive feedback mechanism which reinforces the inverse magnetic catalysis.
Keywords
Cite
@article{arxiv.2109.04439,
title = {Driving chiral phase transition with ring diagram},
author = {Pok Man Lo and Michał Szymański and Krzysztof Redlich and Chihiro Sasaki},
journal= {arXiv preprint arXiv:2109.04439},
year = {2022}
}
Comments
8 pages, 4 figures, version appear in EPJA