2020 Fall Physics Colloquium 

강연일자: 2020. 09. 22. 화. 오후 5시

장소: 비대면 온라인 Zoom

강연자: 이수형 (연세대)

강연주제: Exotica and Heavy Ion Collision

Relativistic heavy ion collisions provide an excellent venue to produce some of the recently observed and theoretically proposed exotic states with heavy quarks, which are profusely produced in these experiments. We first discuss the difference between a molecular configuration and a compact mulitquark states from the view point of the short distance interaction between hadrons using a quark model. We then point out possible flavor exotic states and why heavy quarks are needed to make them more stable. We finally show how measurements in heavy ion can be used to discriminate the structure of exotic particles. Some comments are made about the recent measurements of X(3872) in heavy ion collision.