Transverse Momentum Distributions of Pions, Kaons and Protons in p − p Interactions at 2.76 TeV

Abstract

The spectra and particle yield ratios of π ± , K ± meson, protons and anti-protons in proton-proton (p − p) interactions at s=2.76 TeV are presented. CRMC generators: EPOS-LHC, EPOS1.99 and QGSJETII-04, are used for simulations and the results are compared with LHC-CMS experimental data. The particles are identified in the transverse momentum range of p T ≈ 0.1 − 1.7 GeV/c and absolute rapidity, ∣y∣ < 1. In simulation, same cuts in p T and y are used as in the experiment. The EPOS1.99 model predicts the data well as compared to the other two models, which predict in some of the p T regions only. The different models used could not effectively describe the experimental data in all p T range.