Hadron distributions - recent results from the CERN experiment NA44
Proton distributions at midrapidity have been measured for 158A{circ}GeV/c 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/c S+S and 158A{circ}GeV/c 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 T{sub fo} and mean collective flow velocity ({Beta}) are extracted. Preliminary results of the particle ratios of K{sup -}/K{sup +} and p/p are discussed in the context of cascade models of RQMD and VENUS.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Fonds zur Foerderung der Wissenschaftlichen Forschung, Wien (Austria); Statens Naturvidenskabelige Forskningsraad, Copenhagen (Denmark); Japanese Society for the Promotion of Science (Japan); Swedish National Science Research Council (Sweden)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 376381
- Report Number(s):
- LA-UR--96-2580; CONF-960579--1; ON: DE96014205
- Country of Publication:
- United States
- Language:
- English
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