Wednesday, June 20, 2012

1206.4205 (G. S. Bali et al.)

QCD quark condensate in external magnetic fields    [PDF]

G. S. Bali, F. Bruckmann, G. Endrodi, Z. Fodor, S. D. Katz, A. Schafer
We present a comprehensive analysis of the light condensates in QCD with 1+1+1 sea quark flavors at zero and nonzero temperatures of up to 190 MeV and external magnetic fields B<1 GeV^2/e. We employ stout smeared staggered fermions with physical quark masses and extrapolate the results to the continuum limit. At low temperatures we confirm the magnetic catalysis scenario predicted by many model calculations while around the crossover the condensate develops a complex dependence on the external magnetic field, resulting in a decrease of the transition temperature.
View original: http://arxiv.org/abs/1206.4205

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