Differential cross sections of charged particles in inelastic pp collisions as a function of pT have been mea- sured at √s = 0.9, 2.76 and 7 TeV at the LHC. The pT spec- tra are compared to NLO-pQCD calculations. Though the differential cross section for an individual √s cannot be de- scribed 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 pT = 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
BALA, RENU;BEOLE', Stefania;BERZANO, DARIO CARLO DOMENICO;BIANCHI, LIVIO;BOTTA, Elena;BRUNA, ELENA;BUFALINO, STEFANIA;CORRALES MORALES, YASSER;FERRETTI, Alessandro;GAGLIARDI, Martino;GALLIO, Mauro;INNOCENTI, GIAN MICHELE;MASERA, Massimo;MILANO, LEONARDO;OPPEDISANO, Chiara;RAMELLO, Luciano;RUSSO, RICCARDO;SITTA, Mario;VERCELLIN, Ermanno;
2013-01-01
Abstract
Differential cross sections of charged particles in inelastic pp collisions as a function of pT have been mea- sured at √s = 0.9, 2.76 and 7 TeV at the LHC. The pT spec- tra are compared to NLO-pQCD calculations. Though the differential cross section for an individual √s cannot be de- scribed 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 pT = 50 GeV/c as required for the calculation of the nuclear modification factor in nucleus–nucleus and proton– nucleus collisions.File | Dimensione | Formato | |
---|---|---|---|
EPJC_73_2013_2662.pdf
Accesso aperto
Tipo di file:
PDF EDITORIALE
Dimensione
724.18 kB
Formato
Adobe PDF
|
724.18 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.