2024/03/13(Wed) 14:00 -16:00 一樓演講廳 1F, Auditorium
Title
Heavy ion collisions: tool for studying strongly interacting matter
Speaker
柯治明特聘教授 (Department of Physics and Astronomy, TEXAS A&M University) Distinguished Prof. Che-Ming Ko (Department of Physics and Astronomy, TEXAS A&M University)Abstract
Heavy ion collisions provide the possibility to produce in the laboratory the dense nuclear matter that exists inside a neutron star and the quark-gluon plasma that is believed to have existed during the early universe. Because of its short lifetime, the dense matter produced in heavy ion collisions cannot be studied using external probes. Instead, its properties are inferred from its decay product. Significant progresses have been made during the past many decades in understanding the properties of the hot dense matter formed in heavy ion collisions from studying particles produced in these collisions. This knowledge has enhanced our understanding of not only the physics of strong interaction but also many astrophysical phenomena such as the neutron star properties and how matter is formed from the primordial quark-gluon plasma during the early universe. In this talk, I will review some of these progresses. For heavy ion collisions at low and intermediate energies such as at MSU and TAMU, I will present the constraints that have been obtained on the equation of state of asymmetric nuclear matter of unequal proton and neutron numbers. For heavy ion collisions at high energies such as at GSI and AGS, I will describe how the nuclear matter equation of state at high densities has been determined. For heavy ion collisions at relativistic energies such as at SPS and RHIC, I will review the evidence for the formation of the quark-gluon plasma and the information on its properties. For ultra-relativistic heavy ion collisions at LHC, besides the study of QGP, I will discuss the possibility of detecting hadrons of exotic structures to address some longstanding questions in hadron physics and recent effort of using ultra-relativistic heavy collisions to study the structure of the colliding nuclei that are not possible by using conventional methods.
Poster
Language
演講語言 (Language): in English