Speaker
Summary
AMADEUS is dealing with the study of the low-energy K$^-$ interactions with light nuclei, with the aim to shed light on fundamental open issues concerning the non-perturbative QCD regime in the strangeness sector with implications going from particle and nuclear physics, to astrophysics (equation of state of Neutron Stars). AMADEUS takes advantage of the DA$\Phi$NE collider at LNF-INFN, which provides a unique source of monochromatic low-momentum kaons. In a first stage, the KLOE detector was used as an active target in order to obtain excellent acceptance and resolution data for K$^-$ nuclear capture on H, ${}^{4}$He, ${}^{9}$Be and ${}^{12}$C nuclei. The strength of the K$^-$ binding in nuclei is currently under investigation through the study of the K$^-$ multi-nucleon absorption processes in $\Lambda/\Sigma$ - p,d,t channels, and the search for antikaon multi-nucleon bound states. We are also inquiring into the ($\Sigma \pi$)$^0$ channels to get information on the controversial $\Lambda$(1405) resonance, and we are looking into the $\Lambda \pi^-$ channel to investigate the in medium properties of the $\Lambda$(1405) and $\Sigma$(1385) resonances. Future plans will also be discussed.
