Differential cross sections of charged particles in inelastic pp collisions as a function of p T have been measured at √s=0.9, 2076 and 7 TeV at the LHC. The p T spectra are compared to NLO-pQCD calculations. Though the differential cross section for an individual √s cannot be described by NLO-pQCD, the relative increase of cross section with √s is in agreement with NLO-pQCD. Based on these measurements and observations, procedures are discussed to construct pp reference spectra at √s = 2.76 and 5.02 TeV up to p T=50 GeV/c as required for the calculation of the nuclear modification factor in nucleus-nucleus and proton-nucleus collisions.

Energy dependence of the transverse momentum distributions of charged particles in pp collisions measured by ALICE

L. Cunqueiro
Membro del Collaboration Group
;
2013

Abstract

Differential cross sections of charged particles in inelastic pp collisions as a function of p T have been measured at √s=0.9, 2076 and 7 TeV at the LHC. The p T spectra are compared to NLO-pQCD calculations. Though the differential cross section for an individual √s cannot be described by NLO-pQCD, the relative increase of cross section with √s is in agreement with NLO-pQCD. Based on these measurements and observations, procedures are discussed to construct pp reference spectra at √s = 2.76 and 5.02 TeV up to p T=50 GeV/c as required for the calculation of the nuclear modification factor in nucleus-nucleus and proton-nucleus collisions.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1658264
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