Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
; Chinese Acad Sci, Grad Sch, Shanghai 201800, Peoples R China
; CCAST, World Lab, Beijing 100080, Peoples R China
; Chinese Acad Sci, Inst Modern Phys, Res Ctr Nucl Theory, Nalt Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
We investigate hard photon production in a chemically equilibrating quark-gluons plasma with finite baryon density at one-loop and two-loop based on Juttner distribution of partons of the system. We find that the photon yield increases obviously with increasing the initial quark chemical potential, and the photon production is dominated by early times. In addition, obvious difference between the calculated production and the one in the thermodynamic equilibrium system shows that the study of photon production in the chemically equilibrating system is very significant.