Speaker
Dr
Johann Marton
(Stefan Meyer Institute, Austrian Academy of Sciences)
Description
There is substantial progress in the understanding of the strong interaction involving strange quarks. However, many aspects of the interactions of antikaons with nucleons and nuclei are still open which are also related to the open question about the role of strangeness in neutron stars. The K- nucleon interaction is strongly attractive at low energies in agreement to theory. This attraction is observed in kaonic hydrogen, which was studied in experiments at the DAΦNE electron-positron collider of LNF-INFN (Frascati/Italy). Resonances like the elusive Λ(1405) in the s-wave impose questions about its nature. In recent theoretical studies it is described as a dynamically generated resonance with two poles. This topic is included in the AMADEUS project at LNF-INFN, which is focused on the study of the nuclear interaction with strangeness at low energy. On the other hand the SIDDHARTA2 project also at LNF-INFN will study kaonic deuterium to extend our knowledge with the antikaon-neutron interaction. Together with our result on kaonic hydrogen we will be able to deduce the scattering lengths in both isospin channels. The results of the antikaon interaction experimental studies and an outlook to the future studies will be presented.
Primary author
Dr
Johann Marton
(Stefan Meyer Institute, Austrian Academy of Sciences)
