Studies of low-energy K⁻-nucleus/nuclei interactions with light nuclei by AMADEUS

¹ Institute of Physics, Jagiellonian University, ul. Łojasiewicza 11, 30-348 Cracow, Poland
² Center for Theranostics, Jagiellonian University, Krakow, Poland
³ INFN, Laboratori Nazionali di Frascati, Via Enrico Fermi 54, 00044 Frascati RM, Italy
⁴ Horia Hulubei National Institute of Physics and Nuclear Engineering, Str. Reactorului 30, P.O. BOX MG-6, Bucharest Magurele, Romania
⁵ Department of Physics, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
⁶ Stefan-Meyer-Institut für subatomare Physik, Kegelgasse 27, 1030 Vienna, Austria
⁷ Physik Department E62, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
⁸ Centro Ricerche Enrico Fermi Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi”, Piazza del Viminale 1, 00184 Roma, Italy
⁹ Excellence Cluster “Origin and Structure of the Universe”, Boltzmann str. 2, D-85748 Garching, Germany
¹⁰ Departament de Fisica Quantica i Astrofisica and Institut de Ciencies del Cosmos, Universitat de Barcelona, Marti i Franques 1, Martí i Franquès 1, 08028 Barcelona, Spain
¹¹ Department of Theoretical Physics, National Centre for Nuclear Research, ul. Pasteura 7, 02-093 Warsaw, Poland

^* e-mail: magdalena.skurzok@uj.edu.pl

Published online: 22 March 2023

Abstract

The AMADEUS Collaboration aims to provide unique experimental constraints to the antikaon-nucleon strong interaction in the regime of nonperturbative QCD. The K⁻ nuclear captures, both at-rest and in-flight, are studied using the monochromatic low-momentum kaon beam (p_K ∼ 120 MeV/c) produced at the DAΦNE collider, interacting with the KLOE detector materials. The studies are performed by reconstructing the hyperon-pion and hyperonnucleon final states. In this work a brief description of AMADEUS results for Λπ⁻ and Λp final states is presented.