arXiv:1301.7261·v1·Nuclear Theory
Exotic hadrons and hadron-hadron interactions in heavy ion collisions
A. Ohnishi🇯🇵 · S. Cho🇰🇷 · T. Furumoto🇯🇵 · T. Hyodo🇯🇵 · D. Jido🇯🇵 · C. M. Ko🇺🇸 · K. Morita🇯🇵 · S. H. Lee🇰🇷 · M. Nielsen🇧🇷 · T. Sekihara🇯🇵 · S. Yasui🇯🇵 · K. Yazaki (ExHIC Collaboration)🇯🇵
Abstract
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.
Comments: 8 pages, 5 figures. Talk presented at the 11th International Conference on Hypernuclear and Strange Particle Physics (HYP2012), Oct.1-5, 2012, Barcelona, Spain