Speaker
Description
Femtoscopic correlation functions have become a powerful tool to access hadron-hadron interactions, particularly in sectors where conventional scattering experiments are not feasible. In this talk we present coupled-channel chiral unitary analyses of correlation functions across the strangeness $S=-1$, $-2$ and $-3$ baryon sectors, where several states emerge dynamically from the meson-baryon dynamics. For $S=-1$ and $S=-2$ we consider the interaction of the vector mesons of the $\rho$-nonet with ground-state octet baryons within the local hidden gauge formalism, generating $\Lambda^*$ and $\Sigma^*$ states up to $2$ GeV, as well as the $\Xi(1950)$ and $\Xi(2120)$. For $S=-3$ we describe the $\Omega(2012)$ as a $\Xi^*\bar{K}$-$\Omega\eta$ molecular state, with its coupling to $\Xi\bar{K}$ driven by $d$-wave transitions. In all cases we compute the correlation functions for the relevant hadron pairs, using realistic source sizes and production weights, and show that the near-threshold shapes are sensitive to the position and coupled-channel composition of the generated poles. These predictions provide concrete benchmarks for upcoming femtoscopic measurements mainly at the LHC, which could help clarify the molecular nature of these resonances.