Collisional broadening of angular correlations in a multiphase transport model

摘要

Systematic comparisons of jetlike correlation data to radiative and collisional energy loss model calculations are essential to extract transport properties of the quark-gluon medium created in relativistic heavy ion collisions. This paper presents a transport study of collisional broadening of jetlike correlations, by following parton parton collision history in a multiphase transport (AMPT) model. The correlation shape is studied as functions of the number of parton parton collisions suffered by a high transverse momentum probe parton (N-coll) and the azimuth of the probe relative to the reaction plane (phi(probe)(fin.)) Correlation is o found to broaden with increasing N-coll and phi(probe)(fin.) from in- to out-of-plane direction. This study provides a transport model reference for future jet-medium interaction studies. (C) 2017 Elsevier B.V. All rights reserved.