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Shell-Model Calculations for_Λ^{16}O and_Λ^{17}O Using Microscopic Effective Interactions with ΣDegrees of Freedom

arXiv:nucl-th/0206012 · doi:10.1103/PhysRevC.66.054301

Abstract

Shell-model calculations in a large model space are performed for _Λ^{16}O and_Λ^{17}O. 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.

11 pages, 5 figures, submitted to Phys. Rev. C

Shell-Model Calculations for_Λ^{16}O and_Λ^{17}O Using Microscopic Effective Interactions with ΣDegrees of Freedom · wovepaper