Exotic hadrons and hadron-hadron interactions in heavy ion collisions

Understand

We discuss the exotic hadron structure and hadron-hadron interactions in view of heavy ion collisions.

• First, we demonstrate that a hadronic molecule with a large spatial size would be produced more abundantly in the coalescence model compared with the statistical model result.
• Secondly, we constrain the Lambda-Lambda interaction by using the recently measured Lambda-Lambda correlation data.
• We find that the RHIC-STAR data favor the Lambda-Lambda scattering parameters in the range 1/a_0 <= -0.8 fm^{-1} and r_{eff} >= 3 fm.