Energy dependence of the transverse momentum distributions of charged particles in pp collisions measured by ALICE
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G. and Zoccarato, Y. and Zynovyev, M. and Zyzak, M. and ALICE Collab... Show more Show less
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Abstract
Differential cross sections of charged particles in inelastic pp
collisions as a function of pT have been measured at root s = 0.9, 2.76
and 7 TeV at the LHC. The pT spectra are compared to NLO-pQCD
calculations. Though the differential cross section for an individual
root s cannot be described by NLO-pQCD, the relative increase of cross
section with root s is in agreement with NLO-pQCD. Based on these
measurements and observations, procedures are discussed to construct pp
reference spectra at rroot s = 2.76 and 5.02 TeV up to pT = 50 GeV/c as
required for the calculation of the nuclear modification factor in
nucleus-nucleus and proton-nucleus collisions.... Show more Show less