Thermalization of quark–gluon matter with the elastic scattering of gqq, gq\bar{q} and g\bar{q}\bar{q}

Xiao-Ming Xu, Li-Sha Xu
2010 Journal of Physics G: Nuclear and Particle Physics  
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
more » ... C, solutions of the transport equations show that thermalization time of quark matter can be shortened by the elastic gqq, gqqbar and gqbarqbar scattering.
doi:10.1088/0954-3899/37/11/115003 fatcat:ssmtgoocs5f6dczth2is2chtje