Eur. Phys. J. C (2015) 75: 452
https://doi.org/10.1140/epjc/s10052-015-3594-3

Regular Article - Theoretical Physics

On jet structure in heavy ion collisions

Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia

^* e-mail: igor@lav01.simp.msu.ru

Received: 6 October 2014
Accepted: 30 July 2015
Published online: 25 September 2015

Abstract

The LHC data on jet fragmentation function and jet shapes in PbPb collisions at center-of-mass energy 2.76 TeV per nucleon pair are analyzed and interpreted in the frameworks of PYthia QUENched (PYQUEN) jet quenching model. A specific modification of longitudinal and radial jet profiles in most central PbPb collisions as compared with pp data is close to that obtained with PYQUEN simulations, taking into account wide-angle radiative and collisional partonic energy losses. The contribution of radiative and collisional loss to the medium-modified intra-jet structure is estimated.