Chapman-Enskog expansion and transport coefficients for the NJL Model

The transport equation for the Nambu-Jona-Lasinio (NJL) model was derived phenomenologically within the relativistic Hartree approximation plus the linear collision terms. The finite-temperature effective mass for the quark was analysed. By means of the Chapman-Enskog method and hydrodynamic approach the different transport coefficients for the NJL plasma were calculated to the first order in the relaxation time. In calculation three different particle number densities n0=0.06, 0.18 and 0.90 were chosen. Generally speaking, the effective quark mass and the transport coefficients decrease in the high temperature region and are affected by the particle number density greatly.EI中文核心期刊要目总览(PKU)中国科学引文数据库(CSCD)04283-2881