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

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

2002-06-05

arxiv.org/abs/nucl-th/0206012v1

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1103/PhysRevC.66.054301

Shell-model calculations in a large model space are performed for _{\Lambda}^{16}O and_{\Lambda}^{17}O. Effective interactions with degrees of freedom of \Sigma in addition to \Lambda and nucleons are derived from hyperon-nucleon and nucleon-nucleon interactions within the framework of the unitary-model-operator approach. Effects of the \Sigma degrees of freedom and the parity-mixing intershell coupling on the \Lambda hypernuclear structure are investigated, employing the Nijmegen NSC97a-f and NSC89 hyperon-nucleon potentials.

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