A Jet Shape Analysis with Au+Au Collisions Collected by STAR

Quark-gluon plasma (QGP) is a unique state of matter that can be produced in relativistic heavy ion collisions. One way to study the properties of the QGP is by observing its “quenching” effects on the products of hard-scattered particles, or jets. Jets are studied in Au+Au collisions at $\sqrt{s_{NN}}$= 200 GeV using STAR experiment data taken at the Relativistic Heavy Ion Collider (RHIC). The jet shape observable, $\rho$, is defined as the fraction of the total transverse momenta from charged particle constituents of a jet to the transverse momenta of the jet itself [1]. In this poster, we will be presenting a preliminary analysis of jet shapes for jets reconstructed with the anti-kT sequential recombination algorithm in heavy ion collisions [2].

[1]  Chatrchyan, Serguei et al., Modification of jet shapes in PbPb collisions at $\sqrt {s_{NN}} = 2.76$ TeV, Phys.Lett. B730 (2014) 243-263

[2]  Cacciari, Matteo and Salam, Gavin P. and Soyez, Gregory, FastJet User Manual, CERN-PH-TH-2011-297