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 / The ALICE Collaboration, ., Abelev, B., Adam, J., Adamová, D., Adare, A.M., Aggarwal, M.M., Rinella, G.Aglieri., Agnello, M., Agocs, A.G., Agostinelli, A., Ahammed, Z., Ahmad, N., Masoodi, A.Ahmad., Ahmed, I., Ahn, S.A., Ahn, S.U., Aimo, I., Aiola, S., Ajaz, M., Akindinov, A., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 73:12(2013). [10.1140/epjc/s10052-013-2662-9]

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.
2013
ALICE experiment; particle production; heavy ion collisions
01 Pubblicazione su rivista::01a Articolo in rivista
Energy dependence of the transverse momentum distributions of charged particles in pp collisions measured by ALICE / The ALICE Collaboration, ., Abelev, B., Adam, J., Adamová, D., Adare, A.M., Aggarwal, M.M., Rinella, G.Aglieri., Agnello, M., Agocs, A.G., Agostinelli, A., Ahammed, Z., Ahmad, N., Masoodi, A.Ahmad., Ahmed, I., Ahn, S.A., Ahn, S.U., Aimo, I., Aiola, S., Ajaz, M., Akindinov, A., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 73:12(2013). [10.1140/epjc/s10052-013-2662-9]
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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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