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

Abstract

Hadron production in leading order pQCD is reviewed. The shape of the single inclusive particle spectra is well described for $p_T\ge 2-3$ 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.

arXiv commentContribution to the CERN Yellow Report on Hard Probes in Heavy Ion Collisions at the LHC, 10 pages, uses cernrep.cls

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Cited by in corpus (7)

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• RHIC-tested predictions for low-$p_T$ and high-$p_T$ hadron spectra in nearly central Pb+Pb collisions at the LHC
• Jet tomography
• Cronin effect in proton-nucleus collisions: a survey of theoretical models
• Hard probes in heavy ion collisions at the LHC: PDFs, shadowing and $pA$ collisions
• Jet physics in ALICE
• Jet Analysis in Heavy Ion Collisions in CMS