Jets in Heavy Ion Collisions with the ATLAS Detector

作     者：Helena Santos 

作者机构：LIP - Laboratório de Instrumentação e Física Experimental de Partículas Portugal 

出 版 物：《International Journal of Modern Physics: Conference Series》 

年 卷 期：2018年第ijmpcs卷第46期

学科分类：07[理学] 0702[理学-物理学] 

主　　题：Quark Gluon Plasma Jet Quenching Fragmentation Functions Dijet asymmetry 

摘      要：Jets constitute a golden probe to study the quark gluon plasma produced in heavy ion collisions at the LHC. Being produced at the early stages of the collisions, they are expected to be modified as propagating through the hot and dense medium. A signature of the modification is the energy loss lowering the jet yields at a given transverse momentum. A factor of two suppression is observed in central Pb+Pb collisions with respect to p p collisions. Other signatures are the modification of the dijet momentum balance and the modification of fragmentation functions. These proceedings describe results on these observables from ATLAS in Runs 1 and 2. The high statistical significance of these data samples collected by ATLAS allows precision measurements of these observables in a wide range of transverse momentum and centrality.