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


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Abelev B., Adam J., Adamová D., Adare A., Aggarwal M., Aglieri Rinella G., ...Daha Fazla

European Physical Journal C, cilt.73, sa.12, ss.1-12, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 73 Sayı: 12
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1140/epjc/s10052-013-2662-9
  • Dergi Adı: European Physical Journal C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-12
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

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 CERN for the benefit of the ALICE collaboration.