2011/09/30 by Pedro Bicudo, P. Bicudo, Bicudo, P.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.1109.6799
10 pages, 12 figures, 1 table
arxiv created 2011/09/30 · openalex publication_date 2011/09/30 · arxiv updated 2015/03/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.