Hyperonic mixing in five-baryon double-strangeness hypernuclei in a two-channel treatment

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dc.creatorLanskoy, D. E.
dc.creatorYamamoto, Y.
dc.date2003-11-24
dc.date.accessioned2026-07-07T05:40:01Z
dc.date.available2026-07-07T05:40:01Z
dc.descriptionProperties of hypernuclei $_{ΛΛ}^5$H and $_{ΛΛ}^5$He are studied in a two-channel approach with explicit treatment of coupling of channels ^3\text{Z}+Λ+Λand α+Ξ. Diagonal ΛΛand coupling ΛΛ-ΞN interactions are derived within G-matrix procedure from Nijmegen meson-exchange models. Bond energy ΔB_{ΛΛ} in $_{ΛΛ}^5$He exceeds significantly that in $_{ΛΛ}^5$H due to the channel coupling. Diagonal Ξαattraction amplifies the effect, which is sensitive also to Λ-core interaction. The difference of the ΔB_{ΛΛ} values can be an unambiguous signature of the ΛΛ-ΞN coupling in ΛΛhypernuclei. However, improved knowledge of the hyperon-nucleus potentials is needed for quantitative extraction of the coupling strength from future data on the ΛΛhypernuclear binding energies.
dc.description11 pages with 3 figures; Phys. Rev. C, accepted
dc.identifierhttps://arxiv.org/abs/nucl-th/0311084
dc.identifierhttp://arxiv.org/abs/nucl-th/0311084
dc.identifierPhys.Rev. C69 (2004) 014303
dc.identifierdoi:10.1103/PhysRevC.69.014303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/82134
dc.subjectNuclear Theory
dc.titleHyperonic mixing in five-baryon double-strangeness hypernuclei in a two-channel treatment
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