AMADEUS

The AMADEUS collaboration is performing experimental investigations in the low energy strangeness QCD sector.

The K− nuclear absorbtion processes on light nuclear targets are studied, taking advantage of the monochromatic low-momentum negatively charged kaons produced by the DAFNE collider and exploiting the KLOE detector as an active target. The K− single and multi-nuclear absorptions on H, 4He, 9Be and 12C, both at-rest and in-flight (for a kaon momentum of 100 MeV/c), are investigated with the aim to determine the nature of the controversial Λ(1405), the non-resonant hyperon pion formation amplitude below the K¯N threshold, the yields and cross sections of K− multi-nucleon absorptions (intimately related to the antikaon multi-nucleon clusters properties) and the K− scattering cross sections on light nuclear targets.