Hirano Tetsufumi, Muroya Shin, Namiki Mikio, Department of Physics Waseda University
Progress of theoretical physics 98(1) 129-142 1997年7月25日
We compare numerical results of thermal photon distribution from hot QCD matter produced by high energy nuclear collisions, based on a hydrodynamical model, with recent experimental data obtained by CERN WA80. Using the asymptotic value of the slope parameter of the transverse momentum distribution, we discuss the characteristic temperature of the QCD fluid.