Landau-Pomeranchuk-Migdal resummation for dilepton production

Details Landau-Pomeranchuk-Migdal resummation for dilepton production Landau-Pomeranchuk-Migdal resummation for dilepton production

2002-11-04

arxiv.org/abs/hep-ph/0211036v1

JHEP 0212 (2002) 006

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 7 postscript figures, test program available at http://www-spht.cea.fr/articles/T02/150/libLPM/

Scientific paper

10.1088/1126-6708/2002/12/006

We consider the thermal emission rate of dileptons from a QCD plasma in the small invariant mass ($Q^2 \sim \gs^2 T^2$) but large energy ($q^0 \gsim T$) range. We derive an integral equation which resums multiple scatterings to include the LPM effect; it is valid at leading order in the coupling. Then we recast it as a differential equation and show a simple algorithm for its solution. We present results for dilepton rates at phenomenologically interesting energies and invariant masses.

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