Title: Probing Quantum Chromodynamic fluid with high-energy nuclear collisions

Speaker: Shanshan Cao (Shandong University)

Organizer: Jia Liu (Peking University)

ITP/CHEP-PKU Seminar Series, 2020 fall

Time: 3pm--4pm (Beijing time Thursday) Oct 22, 2020

Offline Location: Physics Build, Room South 408

Online: Tencent/VOOV Meeting (腾讯会议) ID: 978 865 282

Abstract:

Nuclear matter is heated beyond two trillion degrees in relativistic heavy-ion collisions and becomes a strongly coupled plasma of quarks and gluons. This highly excited quark-gluon plasma (QGP) matter displays properties of perfect fluid and is believed similar to the state of the early universe microseconds after the big bang. In this talk, high-energy particles and jets are utilized to probe the QGP properties. A linear Boltzmann transport coupled to hydrodynamic model is established to describe the strong interaction between energetic partons and the QGP. This includes diverse microscopic processes for both massless and massive parton scatterings and provides a simultaneous description of the nuclear modification of heavy and light flavor hadrons observed at the RHIC and LHC experiments. A hybrid hadronization model is developed to connect particle theories to hadronic observables and is found essential for understanding the hadron chemistry measured in high-energy nuclear collisions.

About the speaker: 

Shanshan Cao, currently a professor at Shandong University, got his Ph.D from Duke University in 2014, and worked as postdoc at Lawrence Berkeley National Laboratory from 2014 to 2016, and Wayne State University from 2016 to 2020. His research focuses on theoretical high-energy nuclear physics probing properties of the quark-gluon plasma with jets and heavy quarks.