Shell-model calculations for Λ16O and Λ17O using microscopic effective interactions with Σ degrees of freedom
Year: 2002
Type: article
Abstract: Shell-model calculations in a large model space are performed for ${}_{\ensuremath{\Lambda}}^{16}\mathrm{O}$ and ${}_{\ensuremath{\Lambda}}^{17}\mathrm{O}.$ Effective interactions with degrees of freedom of $\ensuremath{\Sigma}$ in addition to $\ensuremath{\Lambda}$ and nucleons are derived from hyperon-nucleon and nucleon-nucleon interactions within the framework of the unitary-model-operator approach. Effects of the $\ensuremath{\Sigma}$ degrees of freedom and the parity-mixing intershell coupling on the $\ensuremath{\Lambda}$ hypernuclear structure are investigated, employing the Nijmegen $\mathrm{NSC}97a\ensuremath{-}f$ and NSC89 hyperon-nucleon potentials.
Source: Physical Review C
Authors: Shinichiro Fujii, Ryoji Okamoto, Kenji Suzuki
Institutions: RIKEN, Kyushu Institute of Technology
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1581201214