Relativistic heavy ion collisions provide an excellent venue to produce some of the recently observed and theoretically proposed exotic states because they contain heavy quarks, which are profusely produced in these experiments. We first discuss the difference between a molecular configuration and a compact multiquark 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.
Zoom link will be available via announcement email, or by contacting: stroberg[at]uw.edu.