QCD Phase Transition in a Strong Magnetic Background

Details QCD Phase Transition in a Strong Magnetic Background QCD Phase Transition in a Strong Magnetic Background

2010-05-28

arxiv.org/abs/1005.5365v2

Phys.Rev.D82:051501,2010

Physics

High Energy Physics

High Energy Physics - Lattice

5 pages, 8 figures. References and figures updated. Matches the published version

Scientific paper

10.1103/PhysRevD.82.051501

We investigate the properties of the deconfining/chiral restoring transition for two flavor QCD in presence of a uniform background magnetic field. We adopt a standard staggered discretization of the fermion action and a lattice spacing of the order of 0.3 fm. We explore different values of the bare quark mass, corresponding to pion masses in the range 200 - 480 MeV, and magnetic fields up to |e|B ~ 0.75 GeV^2. The deconfinement and chiral symmetry restoration temperatures remain compatible with each other and rise very slightly (< 2 % for our largest magnetic field) as a function of the magnetic field. On the other hand, the transition seems to become sharper as the magnetic field increases.

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