Terzo Incontro Nazionale di Fisica Nucleare INFN2016

Investigating the low-energy K− interactions in nuclear matter with AMADEUS

15 Nov 2016, 18:45

12m

Aula Bruno Touschek (Laboratori Nazionali di Frascati)

Presentazione orale Presentazioni giovani ricercatori: Dinamica dei quark e degli adroni e reazioni a molti corpi

Speaker

Raffaele Del Grande (LNF-INFN)

Summary

AMADEUS is dealing with the study of the low-energy K${}^{-}$ interactions with light nuclei, with the aim to shed light on fundamental open issues concerning the non-perturbative QCD regime in the strangeness sector with implications going from particle and nuclear physics, to astrophysics (equation of state of Neutron Stars). AMADEUS takes advantage of the DA$\mathrm{\Phi }$NE collider at LNF-INFN, which provides a unique source of monochromatic low-momentum kaons. In a first stage, the KLOE detector was used as an active target in order to obtain excellent acceptance and resolution data for K${}^{-}$ nuclear capture on H, ${}^4$He, ${}^9$Be and ${}^{12}$C nuclei. The strength of the K${}^{-}$ binding in nuclei is currently under investigation through the study of the K${}^{-}$ multi-nucleon absorption processes in $\mathrm{\Lambda }/\mathrm{\Sigma }$ - p,d,t channels, and the search for antikaon multi-nucleon bound states. We are also inquiring into the ($\mathrm{\Sigma }\pi$)${}^0$ channels to get information on the controversial $\mathrm{\Lambda }$(1405) resonance, and we are looking into the $\mathrm{\Lambda }{\pi }^{-}$ channel to investigate the in medium properties of the $\mathrm{\Lambda }$(1405) and $\mathrm{\Sigma }$(1385) resonances. Future plans will also be discussed.

Presentation materials

Slides

Del_Grande_Raffaele_INFN2016.pdf