Inverse magnetic catalysis for the chiral transition induced by thermo-magnetic effects on the coupling constant

Abstract

We compute the one-loop thermo-magnetic corrections to the self-coupling in a model where charged scalars interact also with a constant magnetic field. The calculation is motivated by the possibility that the critical temperature for the chiral phase transition in a magnetic background can be influenced by the dependence of the coupling constant on the magnetic field. We show that the coupling decreases as a function of the field strength. This functional dependence introduces in turn a correction to the boson masses which causes the critical temperature to decrease as a function of the field strength.

5 pages, 4 figures. Title changed, added references and comments. Version to appear in Phys. Rev. D

References in corpus (8)

• QCD Phase Transition in a Strong Magnetic Background
• Inverse magnetic catalysis in the (2+1)-flavor Nambu--Jona-Lasinio and Polyakov--Nambu--Jona-Lasinio models
• Chiral transition in a strong magnetic background
• Chiral Properties of Strong Interactions in a Magnetic Background
• Quark-hadron phase transition in a magnetic field
• The chiral transition in a magnetic background: Finite density effects and the functional renormalization group
• Chiral transition with magnetic fields
• Feynman parametrization and Mellin summation at finite temperature

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