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

¹ INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
² Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Italy
³ Stefan-Meyer-Institut für Subatomare Physik, 1090 Wien, Austria
⁴ Università degli Studi di Roma Tor Vergata, Rome, Italy
⁵ Excellence Cluster ‘Origin and Structure of the Universe’, 85748 Garching, Germany
⁶ Physik Department E12, Technische Universität München, 85748 Garching, Germany
⁷ Ruđer Bošković Institute, Zagreb, Croatia
⁸ National Centre for Nuclear Research, 00681 Warsaw, Poland
⁹ Dipartimento M.I.F.T. dell’Università di Messina, 98166 Messina, Italy
¹⁰ INFN Gruppo collegato di Messina, 98166 Messina, Italy
¹¹ Dipartimento di Scienze e Tecnologie applicate, Università ‘Guglielmo Marconi’, 00193 Roma, Italy
¹² Institute of Physics, Jagiellonian University, 30-059 Kracow, Poland

^a e-mail: kristian.piscicchia@lnf.infn.it

Published online: 22 March 2017

Abstract

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.