Chiral transition in a strong magnetic background

Abstract

The presence of a strong magnetic background can modify the nature and the dynamics of the chiral phase transition at finite temperature. We compute the modified effective potential in the linear sigma model with quarks to one loop in the $\overline{MS}$ scheme for $N_f=2$. For fields $eB\sim 5m_{\pi }^2$ and larger a crossover is turned into a weak first-order transition. We discuss possible implications for non-central heavy ion collisions at RHIC and LHC, and for the primordial QCD transition.

7 pages, 7 figures

References in corpus (6)

• Axial anomaly and magnetism of nuclear and quark matter
• The chiral condensate in a constant electromagnetic field
• Magnetic Phases in Three-Flavor Color Superconductivity
• Dynamical mass generation in QED with magnetic fields: arbitrary field strength and coupling constant
• Chromomagnetic Instability and Induced Magnetic Field in Neutral Two-Flavor Color Superconductivity
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Cited by in corpus (2)

• The Chiral Magnetic Effect
• Quark-hadron phase transition in a magnetic field