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

Ivan Vitev
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Abstract

Hadron production in leading order pQCD is reviewed. The shape of the single inclusive particle spectra is well described for $p_T \geq 2-3$ GeV at center of mass energies from 20 GeV to 2 TeV. The phenomenological K-factor is found to decrease systematically with $\sqrt{s}$. 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 $\sqrt{s} = 5.5$ TeV are given in comparison to the corresponding results at BNL-RHIC and CERN-SPS energies.

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Ivan Vitev. 2002-12-07. Leading order pQCD hadron production and nuclear modification factors at RHIC and the LHC. https://arxiv.org/abs/hep-ph/0212109

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