Midwest Critical Mass 2014

Centrality dependence of transverse momentum correlations in Pb-Pb sqrt(sNN) = at 2.76 TeV in ALICE at the LHC

8 Mar 2014, 17:35

25m

4009 McMaster Hall (University of Toledo)

Talk Experiment

Speaker

Dr prabhat pujahari (Wayne State University)

Description

Two-particle correlations provide information about particle production mechanisms in heavy-ion collisions. We report on results of transverse momentum dierential two particle correlations in Pb-Pb collisions at p sNN = 2.76 TeV measured with the ALICE detector at the LHC. Correlation functions for unidentied ++, +􀀀 and 􀀀􀀀 charged particle pairs as a function of pair azimuthal and pseudo-rapidity dierences are measured. We study their evolution with collision centrality. We nd that pTpT correlation shapes exhibit a strong centrality dependence in Pb-Pb collisions. The momentum correlation values are everywhere positive, indicating that both particles from one pair are more likely to have a momentum above or below the average transverse momentum in an event ensemble. We further study the Fourier decomposition of the correlation function dependence on as a function of for dierent collision centralities.