Low-energy kaon-nucleon/nuclei interaction studies at DAΦNE by AMADEUS

¹ INFN, Laboratori Nazionali di Frascati, Frascati (Rome), Italy
² Stefan-Meyer-Institut für subatomare Physik, Vienna, Austria
³ Physics department, University of Zagreb, Zagreb, Croatia
⁴ Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), Magurele, Romania
⁵ Excellence Cluster Universe, Technische Universität München, Garching, Germany
⁶ Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria and INFN Sezione di Milano, Milano, Italy
⁷ INFN Sezione di Roma I and Inst. Superiore di Sanitá, Rome, Italy
⁸ Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi”, Rome, Italy
⁹ Department of Physics, The University of Tokyo, Tokyo, Japan

^a e-mail: ivana.tucakovic@lnf.infn.it

Published online: 29 May 2015

Abstract

The AMADEUS experiment deals with the investigation of the low-energy kaon-nuclei hadronic interaction at the DAΦNE collider at LNF-INFN, fundamental to respond to longstanding open questions in the non-perturbative QCD in the strangeness sector. One of the most interesting aspects is to understand how hadron masses and interactions change in the nuclear environment. The antikaon-nucleon potential is investigated searching for signals from possible bound kaonic clusters, which would imply a strongly attractive antikaon-nucleon potential. AMADEUS step 0 consists in the analysis of 2004/2005 KLOE data, exploring K⁻ absorptions in H, ⁴He, ⁹Be and ¹²C present in setup materials. The status of the various preliminary analyses is presented, together with future perspectives.