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Measurement of pion, kaon and proton production in proton–proton collisions at $\sqrt{s} = 7$ TeV

The ALICE collaboration
Eur.Phys.J. C75 (2015) 226, 2015

Abstract (data abstract)
CERN-LHC. The measurement of primary $\pi^{\pm}$, K$^{\pm}$, p and $\overline{p}$ production at mid-rapidity ($|y| <$ 0.5) in proton-proton collisions at $\sqrt{s} = 7$ TeV performed with ALICE (A Large Ion Collider Experiment) at the Large Hadron Collider (LHC) is reported. Particle identification is performed using the specific ionization energy loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/$c$ for pions, from 0.2 up to 6 GeV/$c$ for kaons and from 0.3 up to 6 GeV/$c$ for protons. The measured spectra and particle ratios are compared with QCD-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.

  • Table 1

    Data from Figure 13

    10.17182/hepdata.68129.v1/t1

    Combined transverse momentum spectra of PI, K and P, sum of particles and antiparticles, measured at mid-rapidity in pp collisions...

  • Table 2

    Data from Figure 19 (left)

    10.17182/hepdata.68129.v1/t2

    Kaon/Pion ratio in pp collisions at SQRT(S) = 7 TeV.

  • Table 3

    Data from Figure 19 (right)

    10.17182/hepdata.68129.v1/t3

    Proton/Pion ratio in pp collisions at SQRT(S) = 7 TeV.

  • Table 4

    10.17182/hepdata.68129.v1/t4

    dN/dy and MEAN(PT) extracted from Levy-Tsallis fits to the measured PI, K, P spectra at mid-rapidity in inelastic pp collisions...

  • Table 5

    10.17182/hepdata.68129.v1/t5

    dN/dy and MEAN(PT) extracted from Levy-Tsallis fits to the measured PI, K, P spectra at mid-rapidity in inelastic pp collisions...

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