The finite temperature QCD transition in external magnetic fields

Details The finite temperature QCD transition in external magnetic fields The finite temperature QCD transition in external magnetic fields

2011-11-22

arxiv.org/abs/1111.5155v1

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 3 figures, talk presented at the XXIX International Symposium on Lattice Field Theory (Lattice 2011), July 10-16, 201

Scientific paper

The effect of an external magnetic field on the finite temperature transition of QCD is studied. We measure thermodynamic observables including the quark condensates and susceptibilities and the strange quark number susceptibility. We generate configurations at various values of the quantized magnetic flux with N_f=2+1 flavors of stout smeared staggered quarks at physical quark masses. We perform the renormalization of our observables and approach the continuum limit with N_t=6,8 and 10 lattices. We also check finite volume effects using various lattice volumes. Our main result is that the transition temperature significantly decreases with growing magnetic field, and that the transition remains an analytic crossover up to our largest external field eB ~ 1 GeV^2.

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