Breakdown of the Hard Thermal Loop expansion near the light-cone

Details Breakdown of the Hard Thermal Loop expansion near the light-cone Breakdown of the Hard Thermal Loop expansion near the light-cone

1996-09-05

arxiv.org/abs/hep-ph/9609256v1

Z.Phys. C75 (1997) 315-332

Physics

High Energy Physics

High Energy Physics - Phenomenology

40 pages, 8 postscript figures included by \epsfbox, LaTeX file using article style, also available at this http URL http://

Scientific paper

We discuss the bremsstrahlung production of soft real and virtual photons in a quark-gluon plasma at thermal equilibrium beyond the Hard Thermal Loop (HTL) resummation. The physics is controlled by the ratio $Q^2/q_0^2$ of the virtuality to the energy. When $Q^2/q_0^2$ is much smaller than $g^2$, where $g$ is the strong coupling constant, the emission rate is enhanced by a factor $1/g^2$ over the HTL results due to light-cone singularities and the bremsstrahlung is induced by scattering of the quark via both transverse and longitudinal soft gluon exchanges. When $Q^2/q_0^2$ increases, the enhancement factor is given by $q_0^2/Q^2$. When this ratio is near unity, the bremsstrahlung contribution is of the same order as the rate predicted by the HTL resummation. In that case, the bremsstrahlung is induced by both soft and hard gluon exchanges.

Affiliated with

Also associated with

No associations

Rating

Breakdown of the Hard Thermal Loop expansion near the light-cone does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Breakdown of the Hard Thermal Loop expansion near the light-cone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Breakdown of the Hard Thermal Loop expansion near the light-cone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-665502