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Fudan University
QCD medium modification of jets in heavy-ion collisions
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Asia/Shanghai
Description
Speaker: Prof. 马国亮 复旦大学现代物理研究所
Abstract：Several jet observables are studied in high energy heavy-ion collisions by using a multiphase transport model with triggered jets. We demonstrate that the measured asymmetry of dijet is driven by both initial dijet asymmetry and final partonic energy loss. We observe that the imbalance ratio of photon-jet is sensitive to both production position and passing direction of photon, which can be applied for a detail tomography on the QGP. The jet fragmentation function is decomposed into two contributions from jet fragmentation and coalescence due to a competition between two hadronization schemes. We propose that the sub-leading jet shape can display a larger medium modification effect than the leading jet because of its longer path-length inside the QGP. We present that the path-length dependence of jet energy loss can lead to azimuthal anisotropies of jets, sensitive to the initial geometry fluctuations. These studies provide a complete framework of the QCD medium modification of jets in heavy-ion collisions.
Time: 2:30 pm Thursday, Dec 9, 2021
Location: 江湾物理楼 C101
Zoom meeting ID: 827 813 4995 Passcode: fudanHEP
Host: Dingyu Shao
