Dileptons from hot heavy static photons

Details Dileptons from hot heavy static photons Dileptons from hot heavy static photons

2003-05-21

arxiv.org/abs/hep-ph/0305226v1

Phys.Rev. D68 (2003) 056001

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 2 figures

Scientific paper

10.1103/PhysRevD.68.056001

We compute the production rate of lepton pair by static photons at finite temperature at two-loop order. We treat the infrared region of the gluon phase space carefully by using a hard thermal loop gluon propagator. The result is free of infrared and collinear divergences and exhibits an enhancement which produces a result of order $\sim e^2 g^3$ instead of $\sim e^2 g^4$ as would be expected from ordinary perturbation theory.

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