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HK: Fachverband Physik der Hadronen und Kerne
HK 40: Schwerionenkollisionen und QCD Phasen V
HK 40.4: Talk
Wednesday, March 23, 2011, 17:15–17:30, HS AP
Hadron production in p+p, p+Pb and Pb+Pb collisions at the LHC energies with HIJING2.0 model — •Wei-Tian Deng1, Carsten Greiner2, Xin-Nian Wang3,4, Rong Xu4, and Zhe Xu1,2 — 1Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Str. 1, D-60438 Frankfurt am Main, Germany — 2Institute for Theoretical Physics Goethe-University, Max-von-Laue-Str. 1, D-60438 Frankfurt am Main, Germany — 3Nuclear Science Division, MS 70R0319, Lawrence Berkeley National Laboratory, Berkeley, USA — 4Institute of Particle Physics and Key Laboratory of Quark and Lepton physics, Huazhong Normal University, Wuhan 430079, China
We updated the HIJING Monte Carlo model with the latest parton distribution functions and new set of the parameters in the two-component-model that controls total p+p cross section and the central pseudorapity density. We study hadron spectra and multiplicity distributions using the HIJING 2.0 model and compare to recent experimental data from p + p collisions at the LHC energies. Using a strong gluon shadowing effect, we can also give the prediction about hadron production in p+Pb and Pb+Pb collisions at LHC energies. The recent published LHC experiment results are in good agreement with our predictions within the experimental errors and theoretical uncertainties, including the central rapidity multiplicity and its centrality dependency in Pb+Pb collisions.