Soft photon production rate in resummed perturbation theory of high temperature QCD - INSPIRE

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Soft photon production rate in resummed perturbation theory of high temperature QCD

Nov, 1993

14 pages

Published in:

Z.Phys.C 62 (1994) 337-342

e-Print:

hep-ph/9311329 [hep-ph]

DOI:

10.1007/BF01560248

Report number:

LPTHE-ORSAY-93-46,
BI-TP-93-55

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Abstract: (cern)

We calculate the production rate of soft real photons from a hot quark -- gluon plasma using Braaten -- Pisarski's perturbative resummation method. To leading order in the QCD coupling constant

g

we find a logarithmically divergent result for photon energies of order

gT

, where

T

is the plasma temperature. This divergent behaviour is due to unscreened mass singularities in the effective hard thermal loop vertices in the case of a massless external photon.

quantum chromodynamics: finite temperature
perturbation theory: higher-order
quark gluon: plasma
photon: production
production: photon
radiative correction
photon: energy
photon: propagator
propagator: renormalization

References(23)

Figures(0)

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