Constraining of jet medium interaction in high-energy heavy-ion collisions

Hot Quarks 2014: Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions

Zhu, Yan^1 ; Wang, Xin-Nian^2,3

Departamento de Física de Partículas, IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia

E-15706, Spain^1

Key Laboratory of Quark and Lepton Physics (MOE), Institute of Particle Physics, Central China Normal University, Wuhan

430079, China^2

Nuclear Science Division, Mailstop 70R0319, Lawrence Berkeley National Laboratory, Berkeley

CA

94740, United States^3

关键词: Azimuthal angle;    Boltzmann transport;    Experimental uncertainty;    High energy heavy-ion collision;    Jet energy;    Jet fragmentation;    Jet quenching;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/612/1/012007/pdf
DOI  :  10.1088/1742-6596/612/1/012007

来源: IOP

【 摘 要 】

In this talk, we discuss jet medium interaction, in particular, γ-tagged jet energy loss and γ-jet correlation in Pb+Pb collisions at √s = 2.76 TeV within a linearized Boltzmann transport (LBT) model. It is shown that both recoiled and radiated partons have considerable contribution to the energy of a reconstructed jet. LBT results agree well with experimental data and also indicate a sizable azimuthal angle broadening of γ-jet correlation which should be observable with reduced experimental uncertainties. A γ-tagged jet fragmentation function is also shown as a better measure of jet quenching.