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

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 root 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.


Tutti gli autori

  • DI BARI D.;FIORE E.M.;VOLPE G.

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2013

ISSN

1434-6044

ISBN

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Numero di citazioni Wos

56

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Settori ERC

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Codici ASJC

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