Unitary-model-operator approach to $Λ$ hypernuclei

Details Unitary-model-operator approach to $Λ$ hypernuclei Unitary-model-operator approach to $Λ$ hypernuclei

1999-01-20

arxiv.org/abs/nucl-th/9901055v2

Nucl.Phys. A651 (1999) 411-433; Erratum-ibid. A676 (2000) 475-476

Physics

Nuclear Physics

Nuclear Theory

LaTeX, 27 pages, 4 figures, uses elsart.cls, submitted to Nucl. Phys. A, revised version, the words 'unitary-correlation-opera

Scientific paper

10.1016/S0375-9474(99)00139-6

A method is formulated for the description of lambda hypernuclei in the framework of the unitary-model-operator approach (UMOA). The method is applied to $_{\Lambda}^{17}$O. A lambda-nucleon effective interaction is derived, taking the coupling of the sigma-nucleon channel into account. The lambda single-particle energies are calculated for the 0s_{1/2}, 0p_{3/2} and 0p_{1/2} states employing the Nijmegen soft-core (NSC), J\"ulich model-\~A (J\~A) and model-\~B (J\~B) hyperon-nucleon potentials.

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