[Formula Presented]-decay half-lives of new neutron-rich isotopes [Formula Presented] and levels in [Formula Presented]

M. Asai, S. Ichikawa, K. Tsukada, M. Sakama, M. Shibata, Y. Kojima, A. Osa, I. Nishinaka, Y. Nagame, K. Kawade, T. Tachibana

研究成果: Article

27 引用 (Scopus)

抜粋

[Formula Presented]-decay half-lives of new neutron-rich isotopes [Formula Presented] and [Formula Presented] produced in the 20 MeV proton-induced fission of [Formula Presented] have been determined to be 19.4(27) s and 8.2(13) s, respectively, using a gas-jet coupled on-line isotope separator. The present half-lives and those of the recently identified nuclei [Formula Presented] [Formula Presented] were compared with theoretical predictions. The recent calculation by the gross theory with the new one-particle strength functions shows quite good agreement with the experimental half-lives. Excited states of the daughter nuclides [Formula Presented] and [Formula Presented] have been established for the first time. Level energies of the first [Formula Presented] states in even-even Dy isotopes were found to show an irregular behavior at [Formula Presented] and increasing deformation toward the neutron midshell around [Formula Presented].

元の言語English
ページ(範囲)3060-3065
ページ数6
ジャーナルPhysical Review C - Nuclear Physics
59
発行部数6
DOI
出版物ステータスPublished - 1999 1 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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  • これを引用

    Asai, M., Ichikawa, S., Tsukada, K., Sakama, M., Shibata, M., Kojima, Y., Osa, A., Nishinaka, I., Nagame, Y., Kawade, K., & Tachibana, T. (1999). [Formula Presented]-decay half-lives of new neutron-rich isotopes [Formula Presented] and levels in [Formula Presented]. Physical Review C - Nuclear Physics, 59(6), 3060-3065. https://doi.org/10.1103/PhysRevC.59.3060