Speaker
Description
Dibaryons, exotic states composed of six quarks, have long been a subject of interest in understanding the strong interaction beyond conventional hadrons. Among these, strange dibaryons, which contain strange quarks, offer an important role of studying the hyperon-nucleon ($YN$) and hyperon-hyperon ($YY$) interactions . Of particular interest are the spin-0 $H$ ($S$ = -2) and the spin-2 $N\Omega$ ($S$ = -3) dibaryon state, which are considered promising candidates for the strange dibaryon bound state. In heavy-ion collisions, two-particle femtoscopy is a powerful and unique method for extracting information about the spatio-temporal properties of the source, characterising the final state interactions (FSI), and searching for the possible bound states.
In this talk, we will present the measurement of the baryon--baryon correlation function for the $p$--$\Omega^{-}$ pair in Isobar (Ru+Ru, Zr+Zr) collisions. The correlation function is analyzed within the Lednicky--Lyuboshitz formalism. The extracted scattering length and effective range will be presented and compared with recent lattice QCD and effective-theory model calculations. Most importantly, the physics implications for the possible formation of a strange dibaryon ($S=-3$) bound state will be discussed.
