Speaker
Victoria Zhukova
(University of Kansas)
Description
Measurements of the azimuthal anisotropy of charged hadrons are presented for PbPb collisions at sqrt(s_NN) = 2.76 TeV over an extended transverse momentum range. The data were collected with the CMS detector at the LHC. The anisotropy parameter (v_2) is extracted up to a significantly higher pT region than previous achieved, by correlating charged tracks with respect to the event plane reconstructed using the energy deposited in forward-angle calorimeters. Dihadron angular correlations over wide pseudorapidity gap are also presented for the very high-pt particles. These new data can impose quantitative constraints on the details of in-medium parton energy loss models, particularly the influence of the path length and the shape of the interaction region.
Primary author
Victoria Zhukova
(University of Kansas)
