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.