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Improving the sd-shell effective interaction obtained from the Daejeon16 nucleon-nucleon interactionстатья
- Авторы: Shin I.J., Smirnova N.A., Shirokov A.M., Yang Zuxing, Barrett B.R., Li Zhen, Kim Y., Maris P., Vary J.P.
- Журнал: Physical Review C
- Том: 110
- Номер: 3
- Год издания: 2024
- Издательство: American Physical Society
- Местоположение издательства: College Park, MD
- Первая страница: 034306-1
- Последняя страница: 034306-14
- Номер статьи: 034306
- DOI: 10.1103/PhysRevC.110.034306
- Аннотация: We present new microscopic effective shell-model interactions in the valence sd shell, obtained from the modern Daejeon16 nucleon-nucleon potential using no-core shell-model (NCSM) wave functions of 18F at Nmax = 6 (total oscillator quanta of excitation) model space and the Okubo-Lee-Suzuki transformation. First, we explore the convergence properties of our calculations and show that the excitation energies of states in 18F, characterized by the largest valence-like configurations, are reasonably converged and the lowest states are in sensible agreement with experiment. Then, we investigate the monopole properties of that interaction in comparison with the phenomenological universal sd-shell interaction, USDB, and with the previously derived interaction at Nmax = 4. Theoretical binding energies and low-energy spectra of the O isotopes, as well as low-energy spectra of a selection of sd-shell nuclei, are presented. We conclude that the use of larger-space NCSM wave functions leads to a noticeable improvement in the quality of the derived effective interaction. We propose monopole modifications of the Daejeon16 centroids which further improve the agreement with experiment throughout the sd shell, as demonstrated by a compilation of spectra contained in Supplemental Material.
- Добавил в систему: Широков Андрей Михайлович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Текст статьи | PhysRevC.110.034306.pdf | 1,5 МБ | 10 сентября 2024 [shirokov] |
| 2. | Дополнительный материал к статье с сайта журнала | RPC_suppl_material.pdf | 226,5 КБ | 10 сентября 2024 [shirokov] |