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Structure and decay pattern of the linear-chain state in C-14

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Title: Structure and decay pattern of the linear-chain state in C-14
Authors: Baba, T. Browse this author
Kimura, M. Browse this author
Issue Date: 7-Oct-2016
Publisher: American Physical Society (APS)
Journal Title: Physical review C
Volume: 94
Issue: 4
Start Page: 044303
Publisher DOI: 10.1103/PhysRevC.94.044303
Abstract: The linear-chain states of C-14 are theoretically investigated by using the antisymmetrized molecular dynamics. The calculated excitation energies and the alpha decay widths of the linear-chain states were compared with the observed data reported by recent experiments. The properties of the positive-parity linear-chain states reasonably agree with the observation, which convinces us of the linear-chain formation in the positive-parity states. On the other hand, in the negative-parity states, it is found that the linear-chain configuration does not correspond to a single eigenstate but is mixed with other configurations in the eigenstates and does not form a single rotational band. As a further evidence of the linear-chain formation, we focus on the alpha-decay pattern. It is shown that the linear-chain states decay to the excited states of daughter nucleus Be-10 as well as to the ground state, while other cluster states dominantly decay into the ground state. Hence, we regard that this characteristic decay pattern is a strong signature of linear-chain formation.
Rights: ©2016 American Physical Society
Type: article
URI: http://hdl.handle.net/2115/63899
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 木村 真明

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