Hypernuclear cluster states of $_Λ^{12}\rm{B}$ Unveiled through Neural Network-Driven Microscopic Calculation
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915165394436096 |
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| author | Tian, Jiaqi Lyu, Mengjiao Cheng, Zheng Isaka, Masahiro Dote, Akinobu Myo, Takayuki Horiuchi, Hisashi Takemoto, Hiroki Wan, Niu Zhao, Qing |
| author_facet | Tian, Jiaqi Lyu, Mengjiao Cheng, Zheng Isaka, Masahiro Dote, Akinobu Myo, Takayuki Horiuchi, Hisashi Takemoto, Hiroki Wan, Niu Zhao, Qing |
| contents | We investigate the hypernuclear cluster states of $_Λ^{12}\mathrm{B}$ using a neural-network-driven microscopic model. We extend the Control Neural Networks (Ctrl.NN) method and systematically calculate the positive-parity spectrum of $_Λ^{12}\mathrm{B}$. By incorporating $sd$-shell excitations and parity-coupling effects into the $_Λ^{12}\mathrm{B}$ hypernuclear system, we reveal structural changes, including clustering effects and new configurations such as isosceles-triangle and $α$-$t$-$α$ linear-chain structures. Furthermore, by comparing with experimental data, we identify that many peaks ($\#$6 and $\#$8) can be interpreted as $p_Λ$ dominant states, which is consistent with shell-model predictions. Notably, based on our analysis of the excited states of $_Λ^{12}\mathrm{B}$, we propose possible candidates for previously unexplained or controversial experimental peaks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_15450 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hypernuclear cluster states of $_Λ^{12}\rm{B}$ Unveiled through Neural Network-Driven Microscopic Calculation Tian, Jiaqi Lyu, Mengjiao Cheng, Zheng Isaka, Masahiro Dote, Akinobu Myo, Takayuki Horiuchi, Hisashi Takemoto, Hiroki Wan, Niu Zhao, Qing Nuclear Theory We investigate the hypernuclear cluster states of $_Λ^{12}\mathrm{B}$ using a neural-network-driven microscopic model. We extend the Control Neural Networks (Ctrl.NN) method and systematically calculate the positive-parity spectrum of $_Λ^{12}\mathrm{B}$. By incorporating $sd$-shell excitations and parity-coupling effects into the $_Λ^{12}\mathrm{B}$ hypernuclear system, we reveal structural changes, including clustering effects and new configurations such as isosceles-triangle and $α$-$t$-$α$ linear-chain structures. Furthermore, by comparing with experimental data, we identify that many peaks ($\#$6 and $\#$8) can be interpreted as $p_Λ$ dominant states, which is consistent with shell-model predictions. Notably, based on our analysis of the excited states of $_Λ^{12}\mathrm{B}$, we propose possible candidates for previously unexplained or controversial experimental peaks. |
| title | Hypernuclear cluster states of $_Λ^{12}\rm{B}$ Unveiled through Neural Network-Driven Microscopic Calculation |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2502.15450 |