Gluon Bremsstrahlung in Relativistic Heavy Ion Collisions

Abstract

We study the process $qq\to qqg$ at lowest order in QCD perturbation theory to understand gluon radiation in the fragmentation region of relativistic heavy-ion collisions. We arrive at a formula for gluon multiplicity that interpolates between $\sim 1/k_{\perp }^2$ behavior at low $k_{\perp }$, to $\sim 1/k_{\perp }^4$ at large $k_{\perp }$.

arXiv comment5 pages, 2 figures Clarifying paragraphs added to Introduction and Section II

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Cited by in corpus (5)

• Equilibration of the Quark-Gluon Plasma at finite net-baryon density in QCD kinetic theory
• 3-D structure of the Glasma initial state -- Breaking boost-invariance by collisions of extended shock waves in classical Yang-Mills theory
• Soft gluon emission from heavy quark scattering in strongly interacting quark-gluon plasma
• Distribution of Nuclear Matter and Radiation in the Fragmentation Region
• Gluon radiation from a classical point particle: Recoil effects