High p_T Spectra of Identified Particles Produced in Pb+Pb Collisions at 158GeV/nucleon Beam Energy

Abstract

Transverse momentum spectra of pi^{+/-}, p, pbar, K^{+/-}, K^0_s and Lambda at midrapidity were measured at high p_T in Pb+Pb collisions at 158GeV/nucleon beam energy by the NA49 experiment. Particle yield ratios (p/pi, K/pi and Lambda/K^0_s) show an enhancement of the baryon/meson ratio for p_T>2GeV/c. The nuclear modification factor R_{CP} is extracted and compared to RHIC measurements and pQCD calculations.

arXiv commentQuark Matter 2005 parallel section proceedings

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Cited by in corpus (7)

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• Dynamical quark recombination in ultrarelativistic heavy-ion collisions and the proton to pion ratio
• Dynamical heavy-quark recombination and the non-photonic single electron puzzle at RHIC
• High pt Measurements at the CERN SPS
• Search for the onset of baryon anomaly at RHIC-PHENIX
• New results and perspectives on R_{AA} measurements below 20 GeV CM-energy at fixed target machines