Gamow shell model description of neutron-rich He hyper-isotopes
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866912368266575872 |
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| author | Li, Xin Michel, N. Li, J. G. Zhou, Xian-Rong |
| author_facet | Li, Xin Michel, N. Li, J. G. Zhou, Xian-Rong |
| contents | The Gamow shell model (GSM) framework has been extended to the study of weakly bound hypernuclei. As a first application, the neutron-rich He hyper-isotope chains, from 6ΛHe to 9ΛHe have been investigated to accurately account for the loosely bound or neutron-unbound character of hypernuclear many-body states. The energy spectra calculated with a phenomenological Hamiltonian show good agreement with experimental data. In particular, neutron-emitting resonant states are predicted for the neutron-rich nuclei 5-7He and the hypernucleus 6ΛHe. Furthermore, one-neutron densities exhibit the long-range character of weakly bound and resonant states. This study demonstrates that GSM is a practical tool for describing the complex structure of hypernuclei, especially for those close to drip lines. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_16223 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Gamow shell model description of neutron-rich He hyper-isotopes Li, Xin Michel, N. Li, J. G. Zhou, Xian-Rong Nuclear Theory The Gamow shell model (GSM) framework has been extended to the study of weakly bound hypernuclei. As a first application, the neutron-rich He hyper-isotope chains, from 6ΛHe to 9ΛHe have been investigated to accurately account for the loosely bound or neutron-unbound character of hypernuclear many-body states. The energy spectra calculated with a phenomenological Hamiltonian show good agreement with experimental data. In particular, neutron-emitting resonant states are predicted for the neutron-rich nuclei 5-7He and the hypernucleus 6ΛHe. Furthermore, one-neutron densities exhibit the long-range character of weakly bound and resonant states. This study demonstrates that GSM is a practical tool for describing the complex structure of hypernuclei, especially for those close to drip lines. |
| title | Gamow shell model description of neutron-rich He hyper-isotopes |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2408.16223 |