Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2011-11-03
Physics
Nuclear Physics
Nuclear Experiment
4 pages, 5 figures, talk at the 2011 Europhysics Conference on High Energy Physics, EPS-HEP 2011, July 21-27, 2011 Grenoble, R
Scientific paper
The measurement of identified charged-hadron production at mid-rapidity ($|y| < 0.5$) performed with the ALICE experiment is presented for Pb--Pb collisions at $\sqrt{s_{\rm NN}} = \rm .76 TeV$. The transverse momentum spectra of $\pi^{\pm}$, $K^{\pm}$, $p$ and $\bar{p}$ are measured from 100 MeV/c up to 3 GeV/c for pions, from 200 MeV/c up to 2 GeV/c for kaons and from 300 MeV/c up to 3 GeV/c for protons and antiprotons using the \emph{dE/dx} and the \emph{time-of-flight} particle-identification techniques. Preliminary results on charged hadron production yields and particle ratios are reported as a function of $p_{T}$ and collision centrality. Finally, the results are discussed in terms of hydrodynamics-inspired models and compared with published RHIC data in Au--Au collisions at $\sqrt{s_{\rm NN}} = \rm 200 GeV$ and predictions for the LHC.
for the ALICE Collaboration
Preghenella Roberto
No associations
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