Introduction to Thermal Field Theory

Details Introduction to Thermal Field Theory Introduction to Thermal Field Theory

1993-07-15

arxiv.org/abs/hep-ph/9307277v1

Int.J.Mod.Phys. A8 (1993) 5605-5628

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, 8 figures available upon request as ps files

Scientific paper

This is intended to be a very basic introduction and short (and of course incomplete) overview of thermal field theory. In the first part, I introduce the thermal propagator at a very simple level and give the Feynman rules using the time-path contour method. In the second part, I give examples of these rules in scalar theory and discuss the origin of the thermal mass and other important effects as infrared divergences and phase transitions. In the third part, I outline the resummation program of Braaten and Pisarski.

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