875 research outputs found
Calculations of kaonic nuclei based on chiral meson-baryon coupled channel interaction models
We present our latest calculations of -nuclear quasi-bound states using
a self-consistent scheme for constructing -nuclear potentials from various
subthreshold chirally inspired scattering amplitudes. We consider
in-medium versions of the scattering amplitudes taking into account Pauli
blocking in the intermediate states. The resulting 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 quasi-bound state
We report on the first genuinely three-body
coupled-channel Faddeev calculation in search for quasi-bound states in the
system. The main absorptivity in the subsystem is accounted
for by fitting to data near threshold. Our calculation yields one such
quasi-bound state, with , , bound in the range MeV, with a width of MeV. These results differ
substantially from previous estimates, and are at odds with the signal observed by the FINUDA collaboration.Comment: Minor editorial revision; version accepted for publication in Phys.
Rev. Let
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