Baryon stopping and charged particle production from lead-lead collisions at 158 GeV per nucleon
- Univ. of California, Los Angeles, CA (United States)
Net proton (proton minus antiproton) and negative charge hadron spectra (h-) from central Pb+Pb collisions at 158 GeV per nucleon at the CERN Super Proton Synchrotron were measured and compared to spectra from central collisions of the lighter S+S system. Net baryon distributions were derived from those of net protons and net lambdas. Stopping, or rapidity shift with respect to the beam, of net protons and net baryons increase with system size. The mean transverse momentum of net protons also increase with system size. The h- rapidity density scales with the number of participant nucleons for nuclear collisions, where their is independent of system size. The dependence upon particle mass and system size is consistent with larger transverse flow velocity at midrapidity for central collisions of Pb+Pb compared to that of S+S.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 767742
- Report Number(s):
- LBNL-45935; R&D Project: NRNC; TRN: US0005715
- Resource Relation:
- Other Information: TH: Thesis (Ph.D.); Submitted to University of California, Los Angeles, CA (US); PBD: 1 Jul 1999
- Country of Publication:
- United States
- Language:
- English
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