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arXiv · 2109.04439

Driving chiral phase transition with ring diagram

Pok Man Lo·Michał Szymański·Krzysztof Redlich·Chihiro Sasaki
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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.

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Pok Man Lo, Michał Szymański, Krzysztof Redlich, Chihiro Sasaki. 2021-09-09. Driving chiral phase transition with ring diagram. https://arxiv.org/abs/2109.04439

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