Kinoshita-Lee-Nauenberg theorem, magnetic mass, and thermal photon production

We study the infrared singularities associated with ultrasoft transverse gluons in the calculation of photon production by a quark-gluon plasma. Despite the fact that the Kinoshita-Lee-Nauenberg theorem works in this context and provides cancellations of infrared singularities, it does not prevent t...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D, Particles and fields Particles and fields, 2000-06, Vol.61 (11), Article 116001
Main Authors: Aurenche, P., Gelis, F., Zaraket, H.
Format: Article
Language:English
Subjects:
INFRARED DIVERGENCES
PERTURBATION THEORY
PHOTONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM CHROMODYNAMICS
QUARK-GLUON INTERACTIONS
THEORETICAL DATA
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study the infrared singularities associated with ultrasoft transverse gluons in the calculation of photon production by a quark-gluon plasma. Despite the fact that the Kinoshita-Lee-Nauenberg theorem works in this context and provides cancellations of infrared singularities, it does not prevent the production rate of low invariant mass dileptons to be sensitive to the magnetic mass of gluons and therefore the rate to be nonperturbative. (c) 2000 The American Physical Society.
ISSN:0556-2821
1089-4918
DOI:10.1103/PhysRevD.61.116001