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A Poincaré-covariant parton cascade model for ultrarelativistic heavy-ion reactions. (English) Zbl 0995.81532
Summary: We present a new cascade-type microscopic simulation of Nucleus-Nucleus Collisions at RHIC energies. The basic elements are partons (quarks and gluons) moving in $$8N$$-dimensional phase space according to Poincaré-covariant dynamics. The parton-parton scattering cross sections used in the model are computed within perturbative QCD in the tree-level approximation. The $$Q^2$$ dependence of the structure functions is included by an implementation of the DGLAP mechanism suitable for a cascade, so that the number of partons is not static, but varies in space and time as the collision of two nuclei evolves. The resulting parton distributions are presented and compared to distributions obtained with the VNI model.
MSC:
 81V35 Nuclear physics 81V05 Strong interaction, including quantum chromodynamics
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