Calculations of kaonic nuclei based on chiral meson-baryon coupled channel interaction models

We present our latest calculations of $K^-$-nuclear quasi-bound states using a self-consistent scheme for constructing $K^-$-nuclear potentials from various subthreshold chirally inspired $\bar{K}N$ scattering amplitudes. We consider in-medium versions of the scattering amplitudes taking into account Pauli blocking in the intermediate states. The resulting $K^-$ binding energies as well as the widths exhibit the same A dependence, however, the binding energies strongly depend on the model used.Comment: 4 pages, proceedings of the MESON 2016 conference, Krakow, Poland, June 2 - 7, 201

Strangeness in the nuclear medium – from hypernuclei to kaonic nuclei.

Many-body systems with nonzero strangeness are investigated within the relativistic mean field approach. Present discussion covers the spin-orbit splitting in hypernuclei, the analysis of −-atom data by using a -nucleus optical potential, and dynamical calculations of ¯K -(hyper)nuclei

Faddeev calculation of a K−ppK^- p p quasi-bound state

We report on the first genuinely three-body ${\bar K}NN - \pi \Sigma N$ coupled-channel Faddeev calculation in search for quasi-bound states in the $K^- p p$ system. The main absorptivity in the $K^- p$ subsystem is accounted for by fitting to $K^- p$ data near threshold. Our calculation yields one such quasi-bound state, with $I=1/2$, $J^{\pi}=0^-$, bound in the range $B \sim 55-70$ MeV, with a width of $\Gamma \sim 95-110$ MeV. These results differ substantially from previous estimates, and are at odds with the $K^- p p \to \Lambda p$ signal observed by the FINUDA collaboration.Comment: Minor editorial revision; version accepted for publication in Phys. Rev. Let