Improved hard thermal loop effective action for hot QED and QCD

Sep, 1995
21 pages
Published in:
  • Nucl.Phys.B 464 (1996) 279-297
e-Print:
Report number:
  • DESY-95-170,
  • ITP-UH-23-95

Citations per year

19952002200920162022024681012
Abstract:
The conventional results for hard thermal loops, which are the building blocks of resummed perturbation theory in thermal field theories, have collinear singularities when external momenta are light-like. It is shown that by taking into account asymptotic thermal masses these singularities are removed. The thus improved hard thermal loops can be summarized by compact gauge-invariant effective actions, generalizing the ones found by Taylor and Wong, and by Braaten and Pisarski.
  • quantum chromodynamics
  • quantum electrodynamics: scalar
  • temperature
  • gluon: propagator
  • gluon: vertex function
  • effective action
  • invariance: gauge
  • fermion: propagator