High-p~ T Pion Production in Heavy-Ion Collisions (original) (raw)

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Perturbative QCD results on π production are presented in proton-proton, protonnucleus and nucleus-nucleus collisions from CERN SPS up to RHIC energy. A K jet (s, p T , Q) factor obtained from jet production is applied to perform nextto-leading order calculations. Using the intrinsic transverse momentum (k T ) we determined transverse momentum spectra for pions in wide energy region. We have investigated nuclear multiscattering and the Cronin effect at RHIC energies.