Abstract:
At temperatures of about two trillion degrees Celsius, nuclear matter undergoes a transition into a new state characterized by quarks and gluons as its fundamental degrees of freedom — the Quark-Gluon Plasma (QGP). The QGP is believed to be the state of our early universe microseconds after the Big Bang and is regarded as the most perfect fluid known to date in a strongly coupled system. At present, the only way to create QGP in the laboratory is through relativistic heavy-ion collisions, often referred to as “Little Bangs.” High-energy particles, or jets, produced in the early stages of these collisions interact with the QGP as they traverse it, making them ideal probes of its internal structure. With the coordinated progress of theory and experiment, jet studies are moving from the qualitative discovery of the QGP to the precise determination of its properties. This talk will present recent progress in jet theory, with a focus on how to use transport models to consistently describe the nuclear modification of different jet flavors in the QGP and to quantitatively extract QGP properties, such as the equation of state of strongly interacting matter. We will also discuss a new jet production mechanism arising from interactions between energetic particles and the QGP — the thermal recoil jet — and examine its observable signatures in experiments, as well as new opportunities it offers for probing QGP properties.
Biography:
Shanshan Cao is a Professor at Shandong University. He received his B.Sc. degree from Nanjing University in 2009 and his Ph.D. degree from Duke University in 2014. From 2014 to 2020, he conducted postdoctoral research at Lawrence Berkeley National Laboratory and Wayne State University. In 2020, he joined the faculty at Shandong University. His research focuses on theoretical high-energy nuclear physics, including jet physics and heavy-flavor physics in the Quark-Gluon Plasma. He has published over 100 papers in domestic and international journals and has received more than 4,000 citations.
Host: Prof. Yifeng Sun
Alternative online link：https://meeting.tencent.com/dm/FZhopW7R2CsC
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