### Studies of higher-order flow harmonics in PbPb collisions at 2.76 TeV with CMSStudies of higher-order flow harmonics in PbPb collisions at 2.76 TeV with CMS

Access Restriction
Open

 Author Tuo, Shengquan Source CERN Document Server Content type Text File Format PDF Date Created 2012-10-23 Language English
 Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Modern physics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics Subject Keyword Detectors and Experimental Techniques Abstract High-order Fourier harmonics ($v_n$, $n > 2$) in the azimuthal distributions of charged particles produced in PbPb collisions at a nucleon-nucleon centre-of-mass energy $\sqrt{s_{_{NN}}}$ = 2.76 TeV are presented. The $v_n$ coefficients are studied using the event-plane method and a Fourier decomposition analysis of the two particle correlations in various collision centrality, $p_{T}$ and $\eta$ ranges. A unique measurement of $v_n$ in the ultra-central collisions (UCC) is performed using the long-range component of the two particle correlations. These data provide strong constraints on the theoretical models of the initial condition in heavy ion collisions and the transport properties of the produced medium. Description Presented at: 23rd International Conference on Ultrarelativistic Nucleus-Nucleus Collisions, Washington, DC, USA, 13 - 18 Aug 2012Collaboration with: CMS Learning Resource Type Article Publisher Date 2012-01-01 Rights License Preprint: (License: CC-BY-4.0) Page Count 5