Investigation of the low-energy kaons hadronic interactions in light nuclei by AMADEUS

The AMADEUS experiment aims to provide unique quality data of K^- hadronic interactions with light nuclear targets, in order to solve fundamental open questions in the non-perturbative strangeness QCD sector, like the controversial nature of the Λ(1405) state, the yield of hyperon formation below threshold, the yield and shape of multi-nucleon K^- absorption, processes which are intimately connected to the possible existence of exotic antikaon multi-nucleon clusters. AMADEUS takes advantage of the DAΦNE collider, which provides a unique source of monochromatic low-momentum kaons and exploits the KLOE detector as an active target, in order to obtain excellent acceptance and resolution data for K^- nuclear capture on H, ⁴He, ⁹Be and ¹²C, both at-rest and in-flight.