Two-frequency shell model for hypernuclei and meson-exchange hyperon-nucleon potentials

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dc.contributor.authorTzeng, Yiharnen
dc.contributor.authorTsay Tzeng, S. Y.en
dc.contributor.authorKuo, T. T. S.en
dc.contributor.authorLee, T-S. H.en
dc.contributor.authorStoks, V. G. J.en
dc.contributor.schoolSchool of Chemistry and Physicsen
dc.date.issued2000en
dc.description.abstractA two-frequency shell model is proposed for investigating the structure of hypernuclei starting with a hyperon-nucleon potential in free space. In a calculation using the folded-diagram method for Λ¹⁶O, the Λ single particle energy is found to have a saturation minimum at an oscillator frequency ħωΛ≈10MeV, for the Λ orbit, which is considerably smaller than ħωN=14MeV for the nucleon orbit. The spin-dependence parameters derived from the Nijmegen NSC89 and NSC97f potentials are similar, but both are rather different from those obtained with the Jülich-B potential. The ΛNN three-body interactions induced by ΛN-ΣN transitions are important for the spin parameters, but relatively unimportant for the low-lying states of Λ¹⁶O.en
dc.description.statementofresponsibilityYiharn Tzeng, S. Y. Tsay Tzeng, T. T. S. Kuo, T.-S.H. Lee, and V. G. D. Stoksen
dc.identifier.citationPhysical Review C, 2000; 61(3):031305en
dc.identifier.doi10.1103/PhysRevC.61.031305en
dc.identifier.issn0556-2813en
dc.identifier.urihttp://hdl.handle.net/2440/11119
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.rights©2000 The American Physical Societyen
dc.titleTwo-frequency shell model for hypernuclei and meson-exchange hyperon-nucleon potentialsen
dc.typeJournal articleen

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