Charged particle spectra in central S+S collisions at 200 GeV/c per nucleon

Tue, 04 Oct 2005 09:53:11 +0200

The transverse momentum and rapidity distributions of negative hadrons and participant protons have been measured for central 32S+ 32S collisions at plab=200 GeV/c per nucleon. The proton mean rapidity shift < Delta y>~1.6 and mean transverse momentum ~0.6 GeV/c are much higher than in pp or peripheral AA collisions and indicate an increase in the nuclear stopping power. All pT spectra exhibit similar source temperatures. Including previous results for K0s Lambda , and Lambda -bar, we account for all important contributions to particle production.

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Charged particle spectra in central S+S collisions at 200 GeV/c per nucleon