Spectra of produced particles at CERN SPS heavy-ion collisions from a parton-cascade model

Details Spectra of produced particles at CERN SPS heavy-ion collisions from a parton-cascade model Spectra of produced particles at CERN SPS heavy-ion collisions from a parton-cascade model

1997-08-14

arxiv.org/abs/nucl-th/9708025v1

Phys.Lett. B422 (1998) 39-44

Physics

Nuclear Physics

Nuclear Theory

13 pages including 8 postscript figures

Scientific paper

10.1016/S0370-2693(98)00048-3

We evaluate the spectra of produced particles (pions, kaons, antiprotons) from partonic cascades which may develop in the wake of heavy-ion collisions at CERN SPS energies and which may hadronize by formation of clusters which decay into hadrons. Using the experimental data obtained by NA35 and NA44 collaborations for S+S and Pb+Pb collisions, we conclude that the Monte Carlo implementation of the recently developed parton-cascade/cluster-hadronization model provides a reasonable description of the distributions of the particles produced in such collisions. While the rapidity distribution of the mid-rapidity protons is described reasonably well, their transverse momentum distribution falls too rapidly compared to the experimental values, implying a significant effect of final state scattering among the produced hadrons neglected so far.

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