# 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

May 31, 2020 to June 5, 2020
Online
US/Central timezone

## Flavor hierarchy of jet quenching in relativistic heavy-ion collisions

Jun 1, 2020, 12:55 PM
20m
https://cern.zoom.us/j/99114030907

#### https://cern.zoom.us/j/99114030907

Oral Presentation Heavy Flavor and Quarkonia

### Speaker

Ms Wen-Jing Xing (Central China Normal University)

### Description

Relativistic heavy-ion experiments have observed similar quenching effects for (prompt) $D$ mesons compared to charged hadrons for transverse momenta larger than 6-8 GeV, which remains a mystery since heavy quarks typically lose less energies in quark-gluon plasma than light quarks and gluons. Recent measurements of the nuclear modification factors of $B$ mesons and $B$-decayed $D$ mesons by the CMS Collaboration provide a unique opportunity to study the flavor hierarchy of jet quenching. Using a linear Boltzmann transport model combined with hydrodynamics simulation, we study the energy loss and nuclear modification for heavy and light flavor jets in high-energy nuclear collisions. By consistently taking into account both quark and gluon contributions to light and heavy flavor hadron productions within a next-to-leading order perturbative QCD framework, we obtain, for the first time, a satisfactory description of the experimental data on the nuclear modification factors for charged hadrons, $D$ mesons, $B$ mesons and $B$-decayed $D$ mesons simultaneously over a wide range of transverse momenta (8-300 GeV). This presents a solid solution to the flavor puzzle of jet quenching and constitutes a significant step towards the precision study of jet-medium interaction. Our study predicts that at transverse momenta larger than 30-40 GeV, $B$ mesons also exhibit similar suppression effects to charged hadrons and $D$ mesons, which may be tested by future measurements.

Reference:

[1] Wen-Jing Xing, Shanshan Cao, Guang-You Qin, and Hongxi Xing, arXiv:1906.00413

Track Heavy Flavor and Quarkonia Contributed Talk

### Primary authors

Ms Wen-Jing Xing (Central China Normal University) Dr Shanshan Cao (Wayne State University) Prof. Guang-You Qin (Central China Normal University) Prof. Hongxi Xing (South China Normal University)

### Presentation materials

 Recording WJX_HP2020_final.pdf