Abstract
From the viewpoint of "critical stability", we discuss the three- and four-body structure of Γ6He, Γ7He, Γ4He, and ΓΓ4H. With the α + Γ + N three-body model, Γ6He is found to have a three-layer structure of the matter distribution: α core, a Γ skin and neutron halo. Also the level structure of Γ7He with the three-body model of Γ5He + n + n is predicted. This stimulates a new study of neutron-rich and proton-rich hypernuclei. By performing a four-body calculation with both NNNΓ and NNNΣ channels and with both NNΓΓ and NNNΘ channels, we show that the ΓN-ΣN and ΓΓ-ΣN couplings are very important in critical stability of few-body hypernuclear systems.
Original language | English |
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Pages (from-to) | 79-84 |
Number of pages | 6 |
Journal | Few-Body Systems |
Volume | 34 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - Jan 1 2004 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics