Publications (1)0 Total impact
ABSTRACT: Proton distributions at midrapidity have been measured for 158A·GeV Pb+Pb collisions in the focusing spectrometer experiment NA44 at CERN. A high degree of nuclear stopping is found in the truly heavy ion collisions. Systematic results of single particle transverse momentum distributions of pions, kaons, and protons, of 200A·GeV S+S and 158A·GeV Pb+Pb central collisions will be addressed within the context of thermalization. By comparing these data with thermal and transport models, freeze-out parameters such as the temperature parameter Tfo and mean collective flow velocity 〈β〉 are extracted. Preliminary results of the particle ratios of and are discussed in the context of cascade models of RQMD and VENUS.
Nuclear Physics A.