The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical model
Nucleosynthesis by the rapid neutron-capture process (r-process) produces elements heavier than iron via neutron-rich nuclides, observed in the solar system and stars with various metallicities. In the r-process, fission plays a fundamental role by recycling the matter during neutron irradiation and...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/05/epjconf_npa-x2023_11021.pdf |
| _version_ | 1797850748615131136 |
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| author | Tanaka Shoya Nishimura Nobuya Nishimura Itoshi Aritomo Yoshihiro |
| author_facet | Tanaka Shoya Nishimura Nobuya Nishimura Itoshi Aritomo Yoshihiro |
| author_sort | Tanaka Shoya |
| collection | DOAJ |
| description | Nucleosynthesis by the rapid neutron-capture process (r-process) produces elements heavier than iron via neutron-rich nuclides, observed in the solar system and stars with various metallicities. In the r-process, fission plays a fundamental role by recycling the matter during neutron irradiation and by shaping the final r-abundance distribution. Nevertheless, due to the difficulty of experimental approaches, most of the fission data available for r-process calculations are based on theoretical predictions with phenomenological models. In this study, we focused on the transition of fission mode from asymmetric to symmetric in neutron-rich isotopes, which has been suggested in recent experiments for fermium isotopes. We investigated the fission of neutron-rich nuclei by a theoretical calculation based on the dynamical model and employed Langevin equations. |
| first_indexed | 2024-04-09T19:05:23Z |
| format | Article |
| id | doaj.art-007cd07fa0ac4339b41e6d210f11c99c |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-09T19:05:23Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-007cd07fa0ac4339b41e6d210f11c99c2023-04-07T09:02:03ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012791102110.1051/epjconf/202327911021epjconf_npa-x2023_11021The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical modelTanaka Shoya0Nishimura Nobuya1Nishimura Itoshi2Aritomo Yoshihiro3RIKEN Nishina Center for Accelerator-Based Science, RIKENRIKEN Nishina Center for Accelerator-Based Science, RIKENGraduate School of Science and Engineering Research, Kindai UniversityGraduate School of Science and Engineering Research, Kindai UniversityNucleosynthesis by the rapid neutron-capture process (r-process) produces elements heavier than iron via neutron-rich nuclides, observed in the solar system and stars with various metallicities. In the r-process, fission plays a fundamental role by recycling the matter during neutron irradiation and by shaping the final r-abundance distribution. Nevertheless, due to the difficulty of experimental approaches, most of the fission data available for r-process calculations are based on theoretical predictions with phenomenological models. In this study, we focused on the transition of fission mode from asymmetric to symmetric in neutron-rich isotopes, which has been suggested in recent experiments for fermium isotopes. We investigated the fission of neutron-rich nuclei by a theoretical calculation based on the dynamical model and employed Langevin equations.https://www.epj-conferences.org/articles/epjconf/pdf/2023/05/epjconf_npa-x2023_11021.pdf |
| spellingShingle | Tanaka Shoya Nishimura Nobuya Nishimura Itoshi Aritomo Yoshihiro The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical model EPJ Web of Conferences |
| title | The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical model |
| title_full | The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical model |
| title_fullStr | The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical model |
| title_full_unstemmed | The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical model |
| title_short | The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical model |
| title_sort | evaluation of the fission mode and fragment yields of neutron rich nuclei by the dynamical model |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/05/epjconf_npa-x2023_11021.pdf |
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