The Free Energy of High Temperature QED to Order $e^{5}$ From Effective Field Theory

Details The Free Energy of High Temperature QED to Order $e^{5}$ From Effective Field Theory The Free Energy of High Temperature QED to Order $e^{5}$ From Effective Field Theory

1995-09-28

arxiv.org/abs/hep-ph/9509409v2

Phys.Rev. D53 (1996) 7286-7292

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages Latex, 6 figures

Scientific paper

10.1103/PhysRevD.53.7286

Massless quantum electrodynamics is studied at high temperature and zero chemical potential. We compute the Debye screening mass to order $e^{4}$ and the free energy to order $e^{5}$} by an effective field theory approach, recently developed by Braaten and Nieto. Our results are in agreement with calculations done in resummed perturbation theory. This method makes it possible to separate contributions to the free energy from different momentum scales (order $T$ and $eT$) and provides an economical alternative to computations in the full theory which involves the dressing of internal propagators.

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