Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-02-05
Phys.Rev. D66 (2002) 056003
Physics
High Energy Physics
High Energy Physics - Phenomenology
New section on vortices,33 pages,LaTex
Scientific paper
10.1103/PhysRevD.66.056003
We propose a simple explanation for the connection between chiral symmetry restoration and deconfinement in QCD at high temperature. In the Higgs description of the QCD vacuum both spontaneous chiral symmetry breaking and effective gluon masses are generated by the condensate of a color octet quark-antiquark pair. The transition to the high temperature state proceeds by the melting of this condensate. Quarks and gluons become (approximately) massless at the same critical temperature. For instanton-dominated effective multiquark interactions and three light quarks with equal mass we find a first order phase transition at a critical temperature around 170 MeV.
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