https://doi.org/10.1140/epja/s10050-022-00822-7
Regular Article - Theoretical Physics
Driving chiral phase transition with ring diagram
Institute of Theoretical Physics, University of Wroclaw, 50204, Wrocław, Poland
Received:
21
April
2022
Accepted:
19
August
2022
Published online:
6
September
2022
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.
© The Author(s) 2022. corrected publication 2022
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