20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Transverse momentum spectra of identified charged hadrons with the ALICE detector in PbPb collisions at the LHC

21 Jul 2011, 15:45
15m
Lesdiguières (Alpes Congrès - Alpexpo)

Lesdiguières

Alpes Congrès - Alpexpo

Parallel session talk Ultrarelativistic Heavy Ions

Speaker

Dr Roberto Preghenella (INFN Bologna)

Description

The measurement of identified charged hadron production at mid-rapidity (|y| < 0.5) performed with the ALICE experiment is resented for PbPb collisions at a nucleon-nucleon c.m. energy of 2.76 TeV. The transverse momentum spectra of charged pions, kaons, protons and antiprotons are measured from 200 MeV/c up to 3 GeV/c for pions and kaons and from 400 MeV/c up to 5 GeV/c for protons and antiprotons using the dE/dx and the time-of-flight particle-identification techniques. Preliminary results on charged hadron production yields and particle ratios are reported as a function of pT and collision centrality. Finally, the results are discussed in terms of hydrodynamics-inspired models and compared with published RHIC data in Au泡u collisions at c.m. energy of 200 GeV per nucleon pair and Monte Carlo predictions.

Primary author

Dr Roberto Preghenella (INFN Bologna)

Presentation Materials