Chiral symmetry breaking in hot matter

Details Chiral symmetry breaking in hot matter Chiral symmetry breaking in hot matter

1998-10-19

arxiv.org/abs/hep-ph/9810399v1

Lecture Notes in Physics, Vol. 516 (Springer, Heidelberg), p113

Physics

High Energy Physics

High Energy Physics - Phenomenology

62 LaTex pages, incorporating 23 figures. Lectures given at the eleventh Chris-Engelbrecht Summer School in Theoretical Physic

Scientific paper

10.1007/BFb0107313

This series of three lectures covers (a) a basic introduction to symmetry breaking in general and chiral symmetry breaking in QCD, (b) an overview of the present status of lattice data and the knowlegde that we have at finite temperature from chiral perturbation theory. (c) Results obtained from the Nambu--Jona-Lasinio model describing static mesonic properties are discussed as well as the bulk thermodynamic quantities. Divergences that are observed in the elastic quark-antiquark scattering cross-section, reminiscent of the phenomenon of critical opalescence in light scattering, is also discussed. (d) Finally, we deal with the realm of systems out of equilibrium, and examine the effects of a medium dependent condensate in a system of interacting quarks.

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