Journal article

Publication year: 1998

Pages: 162-177

Journal: Annals of Physics

Volume number: 266

Issue number: 1

ISSN: 0003-4916

Open access status: Green

DOI Link: https://doi.org/10.1006/aphy.1997.5781

Publisher: Elsevier Masson

Abstract: 
The complete one-loop self energies (real and imaginary parts) for photons, gluons, electrons, and quarks at finite temperature are calculated numerically and compared to the results of the hard thermal loop (HTL) approximation used for the resummation technique of Braaten and Pisarski. In this way some light is shed on the validity of the weak coupling limit assumption (g much less than 1) or equivalently the high temperature assumption, on which the HTL approximation is based. Furthermore, the gauge dependence of the fermion self energy beyond the HTL approximation is considered. Finally the dispersion relations following from the real part of the self energies are compared to the HTL results. (C) 1998 Academic Press.

Harvard Citation style: Peshier, A., Schertler, K. and Thoma, M. (1998) One-loop self energies at finite temperature, Annals of Physics, 266(1), pp. 162-177. https://doi.org/10.1006/aphy.1997.5781

APA Citation style: Peshier, A., Schertler, K., & Thoma, M. (1998). One-loop self energies at finite temperature. Annals of Physics. 266(1), 162-177. https://doi.org/10.1006/aphy.1997.5781