Chiral symmetry crossover with a linear confining and temperature dependent quark-antiquark potential

Details Chiral symmetry crossover with a linear confining and temperature dependent quark-antiquark potential Chiral symmetry crossover with a linear confining and temperature dependent quark-antiquark potential

2011-09-30

arxiv.org/abs/1109.6799v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 12 figures, 1 table

Scientific paper

Recently we developed a numerical technique to compute chiral symmetry breaking at T=0 with different current quark masses m0, including the current quark masses of the six standard flavours u, d, s, c, b, t. We also fitted from Lattice QCD data the quark-antiquark string tension sigma dependence on temperature T. We now utilize sigma(T) to further upgrade the chiral invariant and confinement quark model to finite temperatures T =/= 0. We study the quark mass at finite T and obtain the corresponding chiral crossover at T=Tc. The quark mass critical curve has a shape similar, but not identical, to the string tension critical curve. In the case of the lightest quarks, the quark mass and the chiral condensate essentially vanish at T=Tc, except for the small explicit chiral symmetry breaking mu and md.

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