Study of the inclusive production of charged pions, kaons, and protons in pp collisions at √s = 0.9,2.76 and 7 TeV

Journal article

Spectra of identified charged hadrons are measured in pp collisions at the LHC for √s = 0.9,2.76, and 7 TeV. Charged pions, kaons, and protons in the transverse-momentum range p T≈0. 1-1. 7 GeV/c and for rapidities {pipe}y{pipe}<1 are identified via their energy loss in the CMS silicon tracker. The average p T increases rapidly with the mass of the hadron and the event charged-particle multiplicity, independently of the center-of-mass energy. The fully corrected p T spectra and integrated yields are compared to various tunes of the Pythia 6 and Pythia 8 event generators. © 2012 CERN for the benefit of the CMS collaboration.

Authors: Chatrchyan, S; Chatrchyan, S; Khachatryan, V; Khachatryan, V; Sirunyan, A

• Journal: European Physical Journal C
• Volume: 72
• Issue: 10
• Pages: 1-37
• Publication date: 2012-11-01
• DOI: 10.1140/epjc/s10052-012-2164-1
• EISSN: 1434-6052
• ISSN: 1434-6044