Lepton pair production from a quark - gluon plasma to first order in alpha-s - INSPIRE

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Lepton pair production from a quark - gluon plasma to first order in alpha-s

J. Cleymans
(
- Cape Town U. and
- Bielefeld U.
)
,
I. Dadic
(
- Boskovic Inst., Zagreb
)

Jun, 1992

38 pages

Published in:

Phys.Rev.D 47 (1993) 160-172

DOI:

10.1103/PhysRevD.47.160

Report number:

BI-TP-92-17

View in:

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Abstract: (APS)

Lepton-pair production from a quark-gluon plasma is calculated to first order in αs. The full kinematic region is considered, i.e., also when the lepton pair is moving. The crossing symmetry at finite temperature is discussed for positive as well as negative values of q2, the invariant mass of the lepton pair. The cancellation of collinear singularities and infrared divergences between the different contributions is explicitly shown. The final result is presented in the form of a well-defined double integral over energies of constitutents.

quark gluon: plasma
lepton: pair production
pair production: lepton
quantum chromodynamics: perturbation theory
finite temperature
symmetry: crossing
renormalization
infrared problem

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