Identified charged hadron production in Pb-Pb collisions at the LHC with the ALICE Experiment

Milano, L. and Abelev, B. and Adam, J. and Adamová, D. and Adare, A. M. and Aggarwal, M. M. and Aglieri, R. G. and Agócs, András and Agostinelli, A. and Aguilar, S.S. and Ahammed, Z. and Ahmad, A. and Ahmad, N. and Ahn, S. A. and Ahn, S. U. and Akindinov, A. and Aleksandrov, D. and Alessandro, B. and Alfaro, M. J. R. and Alici, A. and Alkin, A. and Alme, J. and Alt, T. and Altini, V. and Altinpinar, S. and Altsybeev, I. and Andrei, C. and Andronic, A. and Anguelov, V. and Anielski, J. and Barnaföldi, Gergely Gábor and Bencédi, Gyula and Berényi, Dániel and Boldizsár, László and Dénes, Ervin and Hamar, Gergő and Lévai, Péter and Pochybova, Sona (2013) Identified charged hadron production in Pb-Pb collisions at the LHC with the ALICE Experiment. NUCLEAR PHYSICS A, 904-90. 531C-534C. ISSN 0375-9474

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Abstract

Identified particle spectra represent a crucial tool to understand the behavior of the matter created in high-energy heavy-ion collisions. The transverse momentum pT distributions of identified hadrons contain informations about the transverse expansion of the system and constrain the freezeout properties of the matter created. The ALICE experiment has good particle identification performance over a broad pT range. In this contribution the results for identified pions, kaons and protons in heavy-ion collisions at 2.76 TeV center-of-mass energy are presented. These results are compared with other identified particle measurements obtained by previous experiments, and discussed in terms of the thermal and hydrodynamic pictures. The status of extensions of this analysis, with the study of identified particles as a function of event-by-event flow in Pb–Pb collisions, is also discussed.

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