Analysis of clustering fragments of $^7$Li and $^7$Be in the microscopic cluster model
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866917887757778944 |
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| author | Tao, De-Ye Zhou, Bo Wang, Si-Min Ma, Yu-Gang |
| author_facet | Tao, De-Ye Zhou, Bo Wang, Si-Min Ma, Yu-Gang |
| contents | The nuclear structures of $^7$Li($α+n+n+p$) and $^7$Be($α+p+p+n$) are studied within the microscopic cluster model, in which the clustering fragments e.g., triton, $^3$He, and even the single nucleons around the core are studied in the $^7$Li and $^7$Be systems. We obtain the energy spectra and wave functions of $^7$Li and $^7$Be, and the calculated energy spectra of the ground states and some of the excited states are consistent with experimental data. To investigate the cluster-formation probabilities, we calculate the reduced-width amplitudes of various binary partitions. The results show that the $α+t(^3\mathrm{He})$ cluster structure is dominant in the low-lying states of $^7$Li($^7$Be), including the ground state and the three lowest excited states. In some higher states around the single-particle thresholds, the components of $\mathrm{core}+N$ structures, namely $^6\mathrm{Li}+n$ and $^6\mathrm{He}+p$ in $^7$Li and $^6\mathrm{Li}+p$ in $^7$Be, are significantly enhanced. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_05216 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Analysis of clustering fragments of $^7$Li and $^7$Be in the microscopic cluster model Tao, De-Ye Zhou, Bo Wang, Si-Min Ma, Yu-Gang Nuclear Theory The nuclear structures of $^7$Li($α+n+n+p$) and $^7$Be($α+p+p+n$) are studied within the microscopic cluster model, in which the clustering fragments e.g., triton, $^3$He, and even the single nucleons around the core are studied in the $^7$Li and $^7$Be systems. We obtain the energy spectra and wave functions of $^7$Li and $^7$Be, and the calculated energy spectra of the ground states and some of the excited states are consistent with experimental data. To investigate the cluster-formation probabilities, we calculate the reduced-width amplitudes of various binary partitions. The results show that the $α+t(^3\mathrm{He})$ cluster structure is dominant in the low-lying states of $^7$Li($^7$Be), including the ground state and the three lowest excited states. In some higher states around the single-particle thresholds, the components of $\mathrm{core}+N$ structures, namely $^6\mathrm{Li}+n$ and $^6\mathrm{He}+p$ in $^7$Li and $^6\mathrm{Li}+p$ in $^7$Be, are significantly enhanced. |
| title | Analysis of clustering fragments of $^7$Li and $^7$Be in the microscopic cluster model |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2501.05216 |