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Correlated-Gaussian approach to linear-chain states : Case of four α particles

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タイトル: Correlated-Gaussian approach to linear-chain states : Case of four α particles
著者: Suzuki, Y. 著作を一覧する
Horiuchi, W. 著作を一覧する
発行日: 2017年 4月24日
出版者: American Physical Society (APS)
誌名: Physical review C
巻: 95
号: 4
開始ページ: 44320
出版社 DOI: 10.1103/PhysRevC.95.044320
抄録: We show that correlated Gaussians with good angular momentum and parity provide flexible basis functions for specific elongated shape. As an application we study linear-chain states of four a particles in variation-after-projection calculations in which all the matrix elements are evaluated analytically. We find possible chain states for J(pi) = 0(+), 2(+), 4(+) and perhaps 6(+) with the bandhead energy being about 33 MeV from the ground state of O-16. No chain states with J >= 8 are found. The nature of the rotational sequence of the chain states is clarified in contrast to a rigid-body rotation. The quadrupole deformation parameters estimated from the chain states increase from 0.59 to 1.07 for 2(+) to 6(+). This work suggests undeveloped fields for the correlated Gaussians beyond those problems which have hitherto been solved successfully.
Rights: ©2017 American Physical Society
資料タイプ: article
URI: http://hdl.handle.net/2115/66294
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 堀内 渉

 

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