Ab Initio Calculations of the Carbon and Oxygen Isotopes: Energies, Correlations, and Superfluid Pairing
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
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2025
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| author | Song, Young-Ho Kim, Myungkuk Kim, Youngman Cho, Kihyeon Elhatisari, Serdar Lee, Dean Ma, Yuan-Zhuo Meißner, Ulf-G. |
| author_facet | Song, Young-Ho Kim, Myungkuk Kim, Youngman Cho, Kihyeon Elhatisari, Serdar Lee, Dean Ma, Yuan-Zhuo Meißner, Ulf-G. |
| contents | We perform \textit{ab initio} nuclear lattice calculations of the neutron-rich carbon and oxygen isotopes using high-fidelity chiral interactions. We find good agreement with the observed binding energies and compute correlations associated with each two-nucleon interaction channel. For the isospin $T=1$ channels, we show that the dependence on $T_z$ provides a measure of the correlations among the extra neutrons in the neutron-rich nuclei. For the spin-singlet S-wave channel, we observe that any paired neutron interacts with the nuclear core as well as its neutron pair partner, while any unpaired neutron interacts primarily with only the nuclear core. For the other partial waves, the correlations among the extra neutrons grow more slowly and smoothly with the number of neutrons. These general patterns are observed in both the carbon and oxygen isotopes and may be universal features that appear in many neutron-rich nuclei. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_18722 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Ab Initio Calculations of the Carbon and Oxygen Isotopes: Energies, Correlations, and Superfluid Pairing Song, Young-Ho Kim, Myungkuk Kim, Youngman Cho, Kihyeon Elhatisari, Serdar Lee, Dean Ma, Yuan-Zhuo Meißner, Ulf-G. Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment We perform \textit{ab initio} nuclear lattice calculations of the neutron-rich carbon and oxygen isotopes using high-fidelity chiral interactions. We find good agreement with the observed binding energies and compute correlations associated with each two-nucleon interaction channel. For the isospin $T=1$ channels, we show that the dependence on $T_z$ provides a measure of the correlations among the extra neutrons in the neutron-rich nuclei. For the spin-singlet S-wave channel, we observe that any paired neutron interacts with the nuclear core as well as its neutron pair partner, while any unpaired neutron interacts primarily with only the nuclear core. For the other partial waves, the correlations among the extra neutrons grow more slowly and smoothly with the number of neutrons. These general patterns are observed in both the carbon and oxygen isotopes and may be universal features that appear in many neutron-rich nuclei. |
| title | Ab Initio Calculations of the Carbon and Oxygen Isotopes: Energies, Correlations, and Superfluid Pairing |
| topic | Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2502.18722 |