Shell-model calculations for ∧16O and ∧17O using microscopic effective interactions with ∑ degrees of freedom

摘要

Shell-model calculations in a large model space are performed for ∧16O and ∧17O. Effective interactions withdegrees of freedom of S in addition to ∧ and nucleons are derived from hyperon-nucleon and nucleon-nucleoninteractions within the framework of the unitary-model-operator approach. Effects of the ∑ degrees of freedomand the parity-mixing intershell coupling on the ∧ hypernuclear structure are investigated, employing theNijmegen NSC97a-f and NSC89 hyperon-nucleon potentials.