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| Main Author: | |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.18920 |
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| _version_ | 1866912688544677888 |
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| author | Shevchenko, N. V. |
| author_facet | Shevchenko, N. V. |
| contents | Fine-tuning of the binding energies and widths of the quasi-bound states in three-body systems consisting of antikaon(s) and nucleon(s) was performed. Dynamically exact three-body Faddeev-type AGS equations with three coupled particle channels were solved for the description of the $\bar{K}NN$ and $\bar{K} \bar{K} N$ systems in different spin states. New models of the antikaon-nucleon and pion-nucleon interactions were constructed, and together with our best versions for the remaining potentials were used as input. The characteristics of the quasi-bound $K^- pp$ state calculated with our new one-pole $\bar{K}N - πΣ- πΛ$ potential reproduces the experimental data from the E15 J-PARC experiment. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_18920 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fine-tuning of the $\bar{K}NN$ and $\bar{K}\bar{K}N$ quasi-bound state calculations Shevchenko, N. V. Nuclear Theory Fine-tuning of the binding energies and widths of the quasi-bound states in three-body systems consisting of antikaon(s) and nucleon(s) was performed. Dynamically exact three-body Faddeev-type AGS equations with three coupled particle channels were solved for the description of the $\bar{K}NN$ and $\bar{K} \bar{K} N$ systems in different spin states. New models of the antikaon-nucleon and pion-nucleon interactions were constructed, and together with our best versions for the remaining potentials were used as input. The characteristics of the quasi-bound $K^- pp$ state calculated with our new one-pole $\bar{K}N - πΣ- πΛ$ potential reproduces the experimental data from the E15 J-PARC experiment. |
| title | Fine-tuning of the $\bar{K}NN$ and $\bar{K}\bar{K}N$ quasi-bound state calculations |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2509.18920 |