Radiation shift of quark mass in a constant chromomagnetic field at finite temperature and density

Radiation shift of quark mass in a constant chromomagnetic field under finite temperature and density is calculated. Threshold cases of weak and intensive chromomagnetic field are considered. It is shown that the finite density effect contribution to the quark mass shift in case of intensive field does not contain a supposed part, and its actual can exceed substantially the respective part of purely field contribution. 15 refs