Can a strong magnetic background modify the nature of the chiral transition in QCD?

Abstract

The presence of a strong magnetic background can modify the nature and the dynamics of the chiral phase transition at finite temperature: for high enough magnetic fields, comparable to the ones expected to be created in noncentral high-energy heavy ion collisions at RHIC and the LHC, the original crossover is turned into a first-order transition. We illustrate this effect within the linear sigma model with quarks to one loop in the $\mathrm{MS}$ scheme for $N_f=2$.

4 pages, 2 figures; to appear in the Proceedings of Strong and Electroweak Matter 2008 (SEWM08), August 26-29, Amsterdam, The Netherlands

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• The Chiral Magnetic Effect
• Chiral transition in a strong magnetic background
• Quark-hadron phase transition in a magnetic field
• The chiral condensate in a constant electromagnetic field
• Dynamical mass generation in QED with magnetic fields: arbitrary field strength and coupling constant
• Does there arise a significant enhancement of the dynamical quark mass in external magnetic field?

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• Correlations and fluctuations in a magnetized three-flavor PNJL model with and without inverse magnetic catalysis effect
• Background field and time dependence effects in holographic models