Thermalization of quark-gluon matter with the elastic scattering of gqq, gqqbar and gqbarqbar

Details Thermalization of quark-gluon matter with the elastic scattering of gqq, gqqbar and gqbarqbar Thermalization of quark-gluon matter with the elastic scattering of gqq, gqqbar and gqbarqbar

2010-09-29

arxiv.org/abs/1009.5765v1

J.Phys.G37:115003,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 16 figures

Scientific paper

10.1088/0954-3899/37/11/115003

The elastic scattering of gqq, gqqbar and gqbarqbar and the thermalization of quark-gluon matter are studied. According to Feynman diagrams at the tree level, squared amplitudes for the elastic gqq scattering and the elastic gqqbar scattering are derived in perturbative QCD. Transport equations including the squared amplitudes for the elastic gqq, gqqbar and gqbarqbar scattering are established. Corresponding to anisotropic gluon and quark distributions created in central Au-Au collisions at RHIC, solutions of the transport equations show that thermalization time of quark matter can be shortened by the elastic gqq, gqqbar and gqbarqbar scattering.

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