Nature of the Chiral Restoration Transition in QCD

Details Nature of the Chiral Restoration Transition in QCD Nature of the Chiral Restoration Transition in QCD

2003-08-13

arxiv.org/abs/hep-ph/0308147v1

Phys.Rept. 391 (2004) 353-361

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 2 figures

Scientific paper

10.1016/j.physrep.2003.10.009

As the chirally restored phase ends with T coming down to T_c, a phase resembling a mixed phase is realized, during which the hadrons (which are massless at T_c in the chiral limit) get their masses back out of their kinetic energy. The gluon condensation energy is fed into the system to keep the temperature (nearly) constant. Lattice results for the gluon condensation are matched by a Nambu-Jona-Lasinio calculation. The latter shows that below T_c the chiral symmetry is barely broken, so that with an about 6% drop in the scalar coupling G it is restored at T_c. Nearly half of the glue, which we call epoxy, is not melted at T_c.

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