The European Physical Journal C

, Volume 49, Issue 1, pp 187–191 | Cite as

The role of the gluonic \(gg\leftrightarrow{ggg}\) interactions in early thermalization in ultrarelativistic heavy-ion collisions

Regular Article - Theoretical Physics

Abstract

We “quantify” the role of elastic as well as inelastic \(gg\leftrightarrow{ggg}\) pQCD processes in kinetic equilibration within a pQCD inspired parton cascade. The contributions of different processes to kinetic equilibration are manifested by the transport collision rates. We find that in a central Au+Au collision at RHIC energy pQCD bremsstrahlung processes are much more efficient for momentum isotropization compared to elastic scatterings. For the parameters chosen the ratio of their transport collision rates amounts to 5:1.

Keywords

Elastic Scattering Quark Matter Inelastic Collision Kinetic Equilibration Transport Cross Section 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  1. 1.Institut für Theoretische PhysikJohann Wolfgang Goethe-UniversitätFrankfurtGermany

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