The aim of the AMADEUS experiment is to investigate lowenergy antikaon interaction with nucleons and nuclei, exploiting unique lowmomentum beam kaons produced by DAΦNE collider at LNF-INFN, constrain hadronic nuclear physics models in strangeness -1 sector. As a first step data collected 2004/2005 KLOE collaboration, consisting complex K − absorptions H, 4 He, 9 Be 12 C, was analyzed, leading i...