Studies of antikaon interactions with nucleons at DAΦNE

AMADEUS is an experiment planned to be performed at the DAFNE e(+)e(-) collider of the Frascati National Laboratories ( Italy) of INFN, to investigate the antikaon-nuclei interaction at low energies. AMADEUS will perform, for the first time, full-acceptance studies of antikaon interaction in light nuclei, including a complete experimental program for the case of the kaonic clusters. The study of the absorption of antikaon by the nucleus will provide information concerning the (K) over barN interaction and the modification of the kaon mass in the nuclear medium. The experiment is being preceded by the study of the hadronic interactions of K- in the He-4 of the drift chamber from the KLOE experiment data.