Quadrupole dynamics of carbon isotopes and 10Be

Авторы: Li He, Fang D., Ong H.J., Shirokov A.M., Vary J.P., Yin P., Zhao X.
Журнал: Physical Review C
Том: 110
Номер: 6
Год издания: 2024
Издательство: American Physical Society
Местоположение издательства: College Park, MD
Первая страница: 064325-1
Последняя страница: 064325-7
Номер статьи: 064325
DOI: 10.1103/physrevc.110.064325
Аннотация: Electric quadrupole (E2) moments and transitions provide measures of nuclear deformation and related collective structure. However, matrix elements of the E2 operator are sensitive to the nuclear wave functionat large distances and are poorly convergent within the ab initio no-core shell model approach. We perform for the first time a systematic study of the ratio of neutron to proton quadrupole transition matrix elements, Mn/Mp, with the no-core shell model. We find this observable is well-converged and provides a new and robust tool for comparing with experimental results. Our parameter-free results for Mn/Mp for the carbon isotopes and 10Be compare well with experiment, where available, and provide additional support for the emerging picture that abinitio results align well with collective enhancements in light nuclei.
Добавил в систему: Широков Андрей Михайлович

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