https://doi.org/10.1140/epjc/s10052-019-7100-1
Regular Article - Theoretical Physics
Extracting jet transport coefficient via single hadron and dihadron productions in high-energy heavy-ion collisions
1
Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan, 430079, China
2
Centre de Physique Théorique, Ecole Polytechnique, CNRS, Université Paris-Saclay, Route de Saclay, 91128, Palaiseau, France
* e-mail: zhanghz@mail.ccnu.edu.cn
Received:
19
January
2019
Accepted:
2
July
2019
Published online:
12
July
2019
We study the suppressions of high transverse momentum single hadron and dihadron productions in high-energy heavy-ion collisions based on the framework of a next-to-leading-order perturbative QCD parton model combined with the higher-twist energy loss formalism. Our model can provide a consistent description for the nuclear modification factors of single hadron and dihadron productions in central and non-central nucleus–nucleus collisions at RHIC and the LHC energies. We quantitatively extract the value of jet quenching parameter 
via a global 
analysis, and obtain 
–4.4 at 
MeV at RHIC and 
–3.3 at 
MeV at the LHC, which are consistent with the results from JET Collaboration. We also provide the predictions for the nuclear modification factors of dihadron productions in Pb + Pb collisions at 
= 5.02 TeV and in Xe + Xe collisions at = 5.44 TeV.
© The Author(s), 2019
