Speaker
Description
Hadron-hadron interactions are the basic inputs to discuss hadronic molecules and hadronic nuclei. Flavored hadron interactions, however, are generally difficult to access in standard scattering experiments. Recent research activities on hadron-hadron correlation functions open a systematic way to access flavored hadron interactions such as $\Omega N$, $\Xi N$, $\bar{K}N$ and even $DN$ ($\bar{D}N$). SInce the correlation function is given as the average of the wave function squared with the normalized source function weight, it contains the information of the hadron-hadron interaction. In this talk, I first give a brief review of femtoscopic studies of hadron-hadron interactions based on the correlation functions obtained mainly by the RHIC-STAR and LHC-ALICE collaborations. I also discuss how to diagnose the existence of the bound state by using correlation functions. Specifically, I argue that the STAR and ALICE data of the $p\Omega$ correlation function suggest the existence of a $N\Omega$ bound state. Also, the $pK^-$ correlation function from $pp$, $pA$ and heavy-ion collisions may further elucidate the $\bar{K}N$ bound state nature of the $\Lambda(1405)$.
