Shell-Model Calculations forΛ16O andΛ17O Using Microscopic Effective Interactions with ΣDegrees of Freedom
S. Fujii, R. Okamoto, K. Suzuki
Abstract
Shell-model calculations in a large model space are performed for Λ16O andΛ17O. Effective interactions with degrees of freedom of Σin addition to Λand nucleons are derived from hyperon-nucleon and nucleon-nucleon interactions within the framework of the unitary-model-operator approach. Effects of the Σdegrees of freedom and the parity-mixing intershell coupling on the Λhypernuclear structure are investigated, employing the Nijmegen NSC97a-f and NSC89 hyperon-nucleon potentials.
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