TY  - JOUR
AB  - The emission of hard real photons from a quark-gluon plasma at high temperatures is studied. At lowest order the QCD processes for quark-antiquark annihilation (qqBAR --> gamma-g) and for Compton scattering (qg --> gamma-q) lead to logarithmically divergent thermal production rates for massless quarks. By applying recently developed resummation methods of finite temperature perturbation theory we show that effects due to Landau damping on the exchanged quark provide finite rates. Comparisons with previous estimates and phenomenological implications are discussed.
DA  - 1992
DO  - 10.1007/BF01625902
LA  - eng
IS  - 3
M2  - 433
PY  - 1992
SN  - 0170-9739
SP  - 433-438
T2  - Zeitschrift für Physik C: Particles and fields
TI  - Production rate of hard thermal photons and screening of quark mass singularity
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-17811206
Y2  - 2024-11-22T03:44:52
ER  -