dc.contributor.author Karasu Uysal, Ayben dc.contributor.author ALICE, Collaboration dc.date.accessioned 2019-07-05T11:06:42Z dc.date.available 2019-07-05T11:06:42Z dc.date.issued 2014 dc.identifier.uri https://hdl.handle.net/20.500.12498/486 dc.description.abstract Transverse momentum spectra of π±, K± and p(p ̄) up to pT = 20 GeV/c at mid-rapidity in pp, peripheral (60–80%) and central (0–5%) Pb–Pb collisions at √sNN = 2.76 TeV have been measured using the ALICE detector at the Large Hadron Collider. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT ≈ 3 GeV/c in central Pb–Pb collisions. Below the peak, pT < 3 GeV/c, both ratios are in good agreement with hydrodynamical calculations, suggesting that the peak itself is dominantly the result of radial flow rather than anomalous hadronization processes. For pT > 10 GeV/c particle ratios in pp and Pb–Pb collisions are in agreement and the nuclear modification factors for π±, K± and p(p ̄) indicate that, within the systematic and statistical uncertainties, the suppression is the same. This suggests that the chemical composition of leading particles from jets in the medium is similar to that of vacuum jets. en_US dc.relation https://doi.org/10.1016/j.physletb.2014.07.011 en_US dc.subject Identified particle production High pt Particle ratios Baryon anomaly Nuclear modification factor ALICE LHC en_US dc.title Production of charged pions, kaons and protons at large transverse momenta in pp and Pb–Pb collisions at 2.76 TeV en_US dc.type Article en_US eperson.orcidid 0000-0001-6297-2532 en_US
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