| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1853664 | Physics Letters B | 2007 | 7 Pages |
Abstract
Thermalization of quark matter and antiquark matter is studied with quark-quark-antiquark as well as quark-antiquark-antiquark elastic scatterings. Squared amplitudes of qqq¯âqqq¯ and qq¯q¯âqq¯q¯ at order αs4 are derived in perturbative QCD. Solved by a new technique, solutions of transport equations with the squared amplitudes indicate that the scatterings qqq¯âqqq¯ and qq¯q¯âqq¯q¯ shorten the thermalization time of quark matter and antiquark matter. It is emphasized that three-parton and other multi-parton scatterings become important at the high parton number density achieved in RHIC Au-Au collisions.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Xiao-Ming Xu, Cheng-Cheng Ma, An-Qian Chen, H.J. Weber,