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Perturbative QCD Results on Pion Production in pp , pA and AA Collisions

2002/06/04 by G. G. Barnafoldi, G.G. Barnaföldi, P. Levai +4
Physics and Astronomy · #Factorization #Hadron #High-Energy Particle Collisions Research #Jet (fluid) #Large Hadron Collider #Particle physics theoretical and experimental studies #Parton #Perturbative QCD #Pion #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #nucl-th

paper · pdf · doi:10.1556/aph.18.2003.1.9

published as Heavy Ion Phys.18:79-89,2003 · Talk given at Budapest Workshop on Quark and Hadron Dynamics in Relativistic Heavy Ion Collisions (BP 2002) Budapest, Hungary, 3-7 Mar 2002. 11 pages in Latex, 7 PS figure. Submitted to Heavy Ion Physics

arxiv created 2002/06/04 · openalex publication_date 2003/07/01 · arxiv updated 2011/03/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We summarize new pQCD results on pion production in proton-proton (pp), proton-nucleus (pA) and nucleus-nucleus (AA) collisions. Our calculation introduces intrinsic parton transverse momentum (kT) and is performed effectively at next-to-leading order (NLO), applying a K factor extracted for jet events. Two different factorization scales, Q=pT,jet/2 and pT,jet are used. Experimental data in pA collisions imply a preference for the latter choice at NLO level. We display our results at CERN SPS for AA collisions.

Citations