12-18 August 2012
US/Eastern timezone

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The statistical model in Pb-Pb collisions at the LHC

16 Aug 2012, 14:20
20m
Regency 2/3 ()

Regency 2/3

Oral Presentation Hadron thermodynamics and chemistry Parallel 5A: Hadron Thermodynamics and Chemistry (Chair R. Stock)

Speaker

Peter Braun-Munzinger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))

Description

We investigate, using the newest LHC data, the energy dependence of hadron production within the framework of the statistical hadronization model. The data are confronted with predictions based on extrapolation from lower (RHIC) energies. While the yields of hadrons made from light (u,d,s) quarks generally exhibit little change apart from the overall increase in multiplicity, a characteristic energy dependence is observed for J/psi production. This feature is well described by statistical generation of J/$\psi$ mesons at the phase boundary, as predicted in [1,2]. We also search for possible deviations from the statistical picture in the yields of (anti-)baryons and light (anti-)nuclei. [1] P. Braun-Munzinger, J. Stachel, Phys. Lett. B 490 (2000) 196. [2] A. Andronic, P. Braun-Munzinger, K. Redlich, J. Stachel, Nucl. Phys. A 789 (2007) 334; Phys. Lett. B 652 (2007) 259.

Primary author

Peter Braun-Munzinger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))

Co-authors

Anton Andronic (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) Johanna Stachel (Ruprecht-Karls-Universitaet Heidelberg (DE)) Prof. Krzysztof Redlich (University of Wroclaw)

Presentation Materials

Paper