Hard Photons from a Non-Equilibrated Quark--Gluon Plasma with Finite Baryon Density at a Two-Loop Level
HE Ze-Jun1,2, LONG Jia-Li1,3, MA Yu-Gang1,2
1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204, Shanghai 201800
2CCAST (World Laboratory), PO Box 8730, Beijing 100080
3Graduate School of the Chinese Academy of Sciences, Beijing 100049
Hard Photons from a Non-Equilibrated Quark--Gluon Plasma with Finite Baryon Density at a Two-Loop Level
HE Ze-Jun1,2; LONG Jia-Li1,3;MA Yu-Gang1,2
1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204, Shanghai 201800
2CCAST (World Laboratory), PO Box 8730, Beijing 100080
3Graduate School of the Chinese Academy of Sciences, Beijing 100049
Abstract： We study hard photon production from a two-loop level (bremsstrahlung and annihilation with scattering) in a chemically equilibrating quark--gluon plasma at finite baryon density based on Jüttner distribution of partons of the system. We find that the photon yield from the two-loop level increases obviously with the increasing initial quark chemical potential.
(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
HE Ze-Jun; LONG Jia-Li;MA Yu-Gang;. Hard Photons from a Non-Equilibrated Quark--Gluon Plasma with Finite Baryon Density at a Two-Loop Level[J]. 中国物理快报, 2005, 22(10): 2519-2522.
HE Ze-Jun, LONG Jia-Li, MA Yu-Gang,. Hard Photons from a Non-Equilibrated Quark--Gluon Plasma with Finite Baryon Density at a Two-Loop Level. Chin. Phys. Lett., 2005, 22(10): 2519-2522.
2005, Vol. 22 
