| Talk | ||||||
| Title | Flavor hierarchy of jet quenching in relativistic heavy-ion collisions | |||||
| Video | Loading
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| Author(s) | Xing, Wen-Jing (speaker) (Central China Normal University) | |||||
| Corporate author(s) | CERN. Geneva | |||||
| Imprint | 2020-06-01. - 0:18:36. | |||||
| Series | (Conferences) (10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions) | |||||
| Lecture note | on 2020-06-01T12:55:00 | |||||
| Subject category | Conferences | |||||
| Abstract | 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 | |||||
| Copyright/License | © 2020-2024 CERN | |||||
| Submitted by | cmarkert@physics.utexas.edu | |||||
Record created 2020-06-29, last modified 2022-11-02
Talk details