Structure of light S=-2 nuclei and hyperon mixing
200017 pages
Published in:
- Phys.Rev.C 62 (2000) 034319
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Abstract: (APS)
The one-boson-exchange-model (OBEM) and quark-cluster-model (QCM) interactions are applied to the structure study of the ground states in light S=−2 nuclei with the [core+Λ+Λ]+[core+Ξ+N] model and the core+(3q)+(3q) cluster model, respectively. The core+(3q)+(3q) cluster model proposed here is a model designed to use the QCM interactions in finite nuclear systems. We found that the OBEM interactions predict a double-Λ hypernuclear state for the ground state of light S=−2 nuclei, while the QCM interaction with a bound H dibaryon predicts a bound H-nuclear state, although the structure of the H state in nucleus is considerably different from the free one.- 27.20.+n
- 21.80.+a
- 21.60.Gx
- 13.75.Ev
- light nucleus: model
- strangeness: -2
- exchange: one-boson
- quark: cluster
- Lambda: hypernucleus
- H baryon
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