Effects of the formation time of parton shower on jet quenching in heavy-ion collisions

被引:0
作者
张梦雪 [1 ,2 ]
何杨 [1 ,2 ]
曹杉杉 [1 ,2 ]
易立 [1 ,2 ]
机构
[1] Institute of Frontier and Interdisciplinary Science,Shandong University
[2] Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education,Shandong University
关键词
relativistic heavy-ion collisions; quark-gluon plasma; jet quenching; formation time;
D O I
暂无
中图分类号
O571.6 [重离子核物理];
学科分类号
0827 ; 082701 ;
摘要
Jet quenching has successfully served as a hard probe to study the properties of Quark-Gluon Plasma(QGP).As a multi-particle system,jets require time to develop from a highly virtual parton to a group of partons close to mass shells.In this study,we present a systematical analysis on the effects of this formation time on jet quenching in relativistic nuclear collisions.Jets from initial hard scatterings were simulated with Pythia,and their interactions with QGP were described using a Linear Boltzmann Transport(LBT) model that incorporates both elastic and inelastic scatterings between jet partons and the thermal medium.Three different estimations of the jet formation time were implemented and compared,including instantaneous formation,formation from single splitting,and formation from sequential splittings,before which no jet-medium interaction was assumed.We found that deferring the jet-medium interaction with a longer formation time not only affects the overall magnitude of the nuclear modification factor of jets but also its dependence on the jet transverse momentum.
引用
收藏
页码:161 / 168
页数:8
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