Leading order pQCD hadron production and nuclear modification factors at RHIC and the LHC

الأصل · EN

Hadron production in leading order pQCD is reviewed. The shape of the single inclusive particle spectra is well described for pₜ ≥ 2-3 GeV at center of mass energies from 20 GeV to 2 TeV. The phenomenological K-factor is found to decrease systematically with √s. For ultra-relativistic heavy ion reactions the calculation is augmented with the effects of initial multiple parton scattering and final state radiative energy loss. Baseline CERN-LHC predictions for hadron production in p+p and suppression in central Pb+Pb reactions at √s = 5.5 TeV are given in comparison to the corresponding results at BNL-RHIC and CERN-SPS energies.