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

0433616 - FZÚ 2015 RIV DE eng J - Journal Article
Abelev, B. - Adam, J. - Adamová, Dagmar - Bielčíková, Jana - Kushpil, Svetlana - Kushpil, Vasilij - Mareš, Jiří A. - Šumbera, Michal - Vajzer, Michal - Závada, Petr … Total 944 authors
Energy dependence of the transverse momentum distributions of charged particles in pp collisions measured by ALICE.
European Physical Journal C. Roč. 73, č. 12 (2013), s. 1-12. ISSN 1434-6044. E-ISSN 1434-6052
R&D Projects: GA MŠMT(CZ) LG13031
Institutional support: RVO:68378271 ; RVO:61389005
Keywords : energy dependence * transverse momentum * momentum spectrum * charged particle * p p * scattering
Subject RIV: BF - Elementary Particles and High Energy Physics; BG - Nuclear, Atomic and Molecular Physics, Colliders (UJF-V)
Impact factor: 5.436, year: 2013
http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-013-2662-9

Differential cross sections of charged particles in inelastic pp collisions as a function of p_T have been measured at sqrt(s) = 0.9, 2.76 and 7 TeV at the LHC. The p_T spectra are compared to NLO-pQCD calculations. Though the differential cross section for an individual sqrt(s) cannot be described by NLO-pQCD, the relative increase of cross section with sqrt(s) is in agreement with NLO-pQCD. Based on these measurements and observations, procedures are discussed to construct pp reference spectra at sqrt(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.
Permanent Link: http://hdl.handle.net/11104/0237804