RT Journal Article
T1 Production of charged pions, kaons and protons at large transverse momenta in pp and Pb–Pb collisions at √sNN=2.76TeV
A1 ALICE Collaboration, 
A1 Armesto Pérez, Néstor
A1 González Ferreiro, Elena
A1 Pajares Vales, Carlos
A1 Salgado López, Carlos Alberto
K1 Identified particle production
K1 High pT
K1 Particle ratios
K1 Baryon anomaly
K1 Nuclear modification factor
K1 ALICE
K1 LHC
AB Transverse momentum spectra of π±, K±and p(¯p)up to pT=20GeV/cat mid-rapidity in pp, peripheral (60–80%) and central (0–5%) Pb–Pb collisions at √sNN=2.76TeVhave been measured using the ALICE detector at the Large Hadron Collider. The proton-to-pion and the kaon-to-pion ratios both show adistinct peak at pT≈3GeV/cin central Pb–Pb collisions. Below the peak, pT<3GeV/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>10GeV/cparticle ratios in ppand 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.
PB Elsevier
SN 0370-2693
YR 2014
FD 2014
LK http://hdl.handle.net/10347/21853
UL http://hdl.handle.net/10347/21853
LA eng
NO Abelev, B., Adam, J., Adamová, D., Aggarwal, M. M., Rinella, G. A., Agnello, M., ... & Masoodi, A. A. (2014). Production of charged pions, kaons and protons at large transverse momenta in pp and Pb–Pb collisions at √sNN= 2.76 TeV. Physics Letters B, 736, 196-207
DS Minerva
RD 27 abr 2026