Femtoscopic study of coupled-channel baryon-baryon interactions with $S=-2$

The correlation functions of p Xi(-) and Lambda Lambda pairs from pp and pA collisions are studied in the coupled-channel framework using the N Xi-Lambda Lambda coupled-channel baryon-baryon potentials obtained in the lattice QCD calculation at almost physical quark masses. The p Xi(-) correlation function is calculated to be significantly enhanced from the pure Coulomb case, while the Lambda Lambda correlation function is slightly enhanced from that of the pure fermion quantum statistics. These features reflect the large and small scattering lengths in the p Xi(-) and Lambda Lambda channels in magnitude, and agree with the observed data by the ALICE collaboration. The agreement confirms the S = -2 baryon-baryon potentials from lattice QCD.