The zero-momentum limit of thermal green functions

Details The zero-momentum limit of thermal green functions The zero-momentum limit of thermal green functions

1994-02-15

arxiv.org/abs/hep-ph/9402290v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, LaTeX, two figures available upon request, DOE-ER 40757-040

Scientific paper

The zero momentum limit of thermal self-energies calculated in perturbation
theory depends on the order in which the time and the space components of the
momentum are taken to zero. We show that this is an artifact of the
perturbative calculation, and in fact the limit is well-defined when higher
orders of the perturbation expansion are properly taken into account.

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