Thermalization of Quark Matter Produced at the Highest Energy of a Relativistic Heavy-Ion Collider
XU Xiao-Ming
Department of Physics, Shanghai University, Shanghai 200444
Nuclear Physics Division, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800204, Shanghai 201800
Thermalization of Quark Matter Produced at the Highest Energy of a Relativistic Heavy-Ion Collider
XU Xiao-Ming
Department of Physics, Shanghai University, Shanghai 200444
Nuclear Physics Division, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800204, Shanghai 201800
Abstract： Thermalization of quark matter is studied via a transport equation, which includes triple-quark elastic scattering amplitudes calculated in perturbative QCD. The triple-quark scatterings are demonstrated to be important for an anisotropic initial quark distribution produced in central Au-Au collisions at √SNN=200GeV. By examining momentum isotropy to which the transport equation leads, we can determine a thermalization time of 2.2fm/c for quark matter itself to thermalize by the two-quark and the triple-quark elastic scatterings. Meanwhile, an initial thermal quark distribution function is obtained.
XU Xiao-Ming. Thermalization of Quark Matter Produced at the Highest Energy of a Relativistic Heavy-Ion Collider[J]. 中国物理快报, 2005, 22(7): 1631-1633.
XU Xiao-Ming. Thermalization of Quark Matter Produced at the Highest Energy of a Relativistic Heavy-Ion Collider. Chin. Phys. Lett., 2005, 22(7): 1631-1633.
2005, Vol. 22 
