19 December 2019
9号楼
Asia/Shanghai timezone

Interplaying mechanisms behind inclusive jet $R_{AA}$ and extraction of jet energy loss distributions

19 Dec 2019, 16:50
20m
9409 (9号楼)

9409

9号楼

华中师范大学

Speaker

Yayun HE

Description

The observed suppression of inclusive jets in heavy-ion collisions at LHC has a very weak $p_{T}$ dependence over a large range of $p_{T}$ = 50-1000 GeV and is almost independent of the colliding energy, though the initial energy density of the formed QGP has increased significantly from $\sqrt{s}$ = 2.76 to 5.02 TeV. This interesting phenomenon is fully investigated in the linear Boltzmann transport(LBT) model for jet propagation combined event-by-event 3+1D hydro backgrounds. We found that the $p_{T}$ dependence of jet $R_{AA}$ is determined by the initial spectrum in $pp$ collisions and jet quenching. Furthermore, the energy loss distribution is extracted directly from experimental data within a Beyesian method, which provides a model-independent approach to understand jet quenching in detail. The extracted jet energy loss distributions have a scaling behavior and indicate that jet quenching is caused on the average by only a few out-of-cone scatterings.
Master Student, PhD Student or Postdoc PhD Student
Publications Yayun He, Shanshan Cao, Wei Chen, Tan Luo, Long-Gang Pang, Xin-Nian Wang. Phys. Rev. C 99 (2019) 054911, arXiv:1809.02525. Yayun He, Long-Gang Pang, Xin-Nian Wang. Phys. Rev. Lett. 122 (2019) 252302, arXiv:1808.05310.
Presenter Yayun He

Primary author

Yayun He (Central China Normal University)

Presentation materials

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