Isomer-delayed γ -ray spectroscopy of A=159-164 midshell nuclei and the variation of K -forbidden E1 transition hindrance factors

Z. Patel; P. M. Walker; Zs Podolyák; P. H. Regan; T. A. Berry; P. A. Söderström; H. Watanabe; E. Ideguchi; G. S. Simpson; S. Nishimura; Q. Wu; F. R. Xu; F. Browne; P. Doornenbal; G. Lorusso; S. Rice; L. Sinclair; T. Sumikama; J. Wu; Z. Y. Xu; N. Aoi; H. Baba; F. L. Bello Garrote; G. Benzoni; R. Daido; Zs Dombrádi; Y. Fang; N. Fukuda; G. Gey; S. Go; A. Gottardo; N. Inabe; T. Isobe; D. Kameda; K. Kobayashi; M. Kobayashi; T. Komatsubara; I. Kojouharov; T. Kubo; N. Kurz; I. Kuti; Z. Li; M. Matsushita; S. Michimasa; C. B. Moon; H. Nishibata; I. Nishizuka; A. Odahara; E. Şahin; H. Sakurai; H. Schaffner; H. Suzuki; H. Takeda; M. Tanaka; J. Taprogge; Zs Vajta; A. Yagi; R. Yokoyama

doi:10.1103/PhysRevC.96.034305

Isomer-delayed γ -ray spectroscopy of A=159-164 midshell nuclei and the variation of K -forbidden E1 transition hindrance factors

Z. Patel
, P. M. Walker
, Zs Podolyák
, P. H. Regan
, T. A. Berry
, P. A. Söderström
, H. Watanabe
, E. Ideguchi
, G. S. Simpson
, S. Nishimura
, Q. Wu
, F. R. Xu
, F. Browne
, P. Doornenbal
, G. Lorusso
, S. Rice
, L. Sinclair
, T. Sumikama
, J. Wu
, Z. Y. Xu

N. Aoi, H. Baba, F. L. Bello Garrote, G. Benzoni, R. Daido, Zs Dombrádi, Y. Fang, N. Fukuda, G. Gey, S. Go, A. Gottardo, N. Inabe, T. Isobe, D. Kameda, K. Kobayashi, M. Kobayashi, T. Komatsubara, I. Kojouharov, T. Kubo, N. Kurz, I. Kuti, Z. Li, M. Matsushita, S. Michimasa, C. B. Moon, H. Nishibata, I. Nishizuka, A. Odahara, E. Şahin, H. Sakurai, H. Schaffner, H. Suzuki, H. Takeda, M. Tanaka, J. Taprogge, Zs Vajta, A. Yagi, R. Yokoyama

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

21 被引用数 (Scopus)

抄録

Excited states have been studied in Sm159, Sm161, Sm162 (Z=62), Eu163 (Z=63), and Gd164 (Z=64), populated by isomeric decay following U238 projectile fission at RIBF, RIKEN. The isomer half-lives range from 50 ns to 2.6μs. In comparison with other published data, revised interpretations are proposed for Sm159 and Eu163. The first data for excited states in Sm161 are presented, where a 2.6-μs isomer is assigned a three-quasiparticle, Kπ=17/2- structure. The interpretation is supported by multi-quasiparticle Nilsson-BCS calculations, including the blocking of pairing correlations. A consistent set of reduced E1 hindrance factors is obtained. Limited evidence is also reported for isomeric decay in Sm163, Eu164, and Eu165.

本文言語	英語
論文番号	034305
ジャーナル	Physical Review C
巻	96
号	3
DOI	https://doi.org/10.1103/PhysRevC.96.034305
出版ステータス	出版済み - 9月 6 2017
外部発表	はい

!!!All Science Journal Classification (ASJC) codes

核物理学および高エネルギー物理学

文献へのアクセス

10.1103/PhysRevC.96.034305

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引用スタイル

Patel, Z., Walker, P. M., Podolyák, Z., Regan, P. H., Berry, T. A., Söderström, P. A., Watanabe, H., Ideguchi, E., Simpson, G. S., Nishimura, S., Wu, Q., Xu, F. R., Browne, F., Doornenbal, P., Lorusso, G., Rice, S., Sinclair, L., Sumikama, T., Wu, J., ... Yokoyama, R. (2017). Isomer-delayed γ -ray spectroscopy of A=159-164 midshell nuclei and the variation of K -forbidden E1 transition hindrance factors. Physical Review C, 96(3), 記事 034305. https://doi.org/10.1103/PhysRevC.96.034305

Patel, Z, Walker, PM, Podolyák, Z, Regan, PH, Berry, TA, Söderström, PA, Watanabe, H, Ideguchi, E, Simpson, GS, Nishimura, S, Wu, Q, Xu, FR, Browne, F, Doornenbal, P, Lorusso, G, Rice, S, Sinclair, L, Sumikama, T, Wu, J, Xu, ZY, Aoi, N, Baba, H, Bello Garrote, FL, Benzoni, G, Daido, R, Dombrádi, Z, Fang, Y, Fukuda, N, Gey, G, Go, S, Gottardo, A, Inabe, N, Isobe, T, Kameda, D, Kobayashi, K, Kobayashi, M, Komatsubara, T, Kojouharov, I, Kubo, T, Kurz, N, Kuti, I, Li, Z, Matsushita, M, Michimasa, S, Moon, CB, Nishibata, H, Nishizuka, I, Odahara, A, Şahin, E, Sakurai, H, Schaffner, H, Suzuki, H, Takeda, H, Tanaka, M, Taprogge, J, Vajta, Z, Yagi, A & Yokoyama, R 2017, 'Isomer-delayed γ -ray spectroscopy of A=159-164 midshell nuclei and the variation of K -forbidden E1 transition hindrance factors', Physical Review C, vol. 96, no. 3, 034305. https://doi.org/10.1103/PhysRevC.96.034305

@article{a69ec30bc3984c21a8626318f5f7b509,

title = "Isomer-delayed γ -ray spectroscopy of A=159-164 midshell nuclei and the variation of K -forbidden E1 transition hindrance factors",

abstract = "Excited states have been studied in Sm159, Sm161, Sm162 (Z=62), Eu163 (Z=63), and Gd164 (Z=64), populated by isomeric decay following U238 projectile fission at RIBF, RIKEN. The isomer half-lives range from 50 ns to 2.6μs. In comparison with other published data, revised interpretations are proposed for Sm159 and Eu163. The first data for excited states in Sm161 are presented, where a 2.6-μs isomer is assigned a three-quasiparticle, Kπ=17/2- structure. The interpretation is supported by multi-quasiparticle Nilsson-BCS calculations, including the blocking of pairing correlations. A consistent set of reduced E1 hindrance factors is obtained. Limited evidence is also reported for isomeric decay in Sm163, Eu164, and Eu165.",

author = "Z. Patel and Walker, \{P. M.\} and Zs Podoly{\'a}k and Regan, \{P. H.\} and Berry, \{T. A.\} and S{\"o}derstr{\"o}m, \{P. A.\} and H. Watanabe and E. Ideguchi and Simpson, \{G. S.\} and S. Nishimura and Q. Wu and Xu, \{F. R.\} and F. Browne and P. Doornenbal and G. Lorusso and S. Rice and L. Sinclair and T. Sumikama and J. Wu and Xu, \{Z. Y.\} and N. Aoi and H. Baba and \{Bello Garrote\}, \{F. L.\} and G. Benzoni and R. Daido and Zs Dombr{\'a}di and Y. Fang and N. Fukuda and G. Gey and S. Go and A. Gottardo and N. Inabe and T. Isobe and D. Kameda and K. Kobayashi and M. Kobayashi and T. Komatsubara and I. Kojouharov and T. Kubo and N. Kurz and I. Kuti and Z. Li and M. Matsushita and S. Michimasa and Moon, \{C. B.\} and H. Nishibata and I. Nishizuka and A. Odahara and E. {\c S}ahin and H. Sakurai and H. Schaffner and H. Suzuki and H. Takeda and M. Tanaka and J. Taprogge and Zs Vajta and A. Yagi and R. Yokoyama",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = sep,

day = "6",

doi = "10.1103/PhysRevC.96.034305",

language = "English",

volume = "96",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "3",

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TY - JOUR

T1 - Isomer-delayed γ -ray spectroscopy of A=159-164 midshell nuclei and the variation of K -forbidden E1 transition hindrance factors

AU - Patel, Z.

AU - Walker, P. M.

AU - Podolyák, Zs

AU - Regan, P. H.

AU - Berry, T. A.

AU - Söderström, P. A.

AU - Watanabe, H.

AU - Ideguchi, E.

AU - Simpson, G. S.

AU - Nishimura, S.

AU - Wu, Q.

AU - Xu, F. R.

AU - Browne, F.

AU - Doornenbal, P.

AU - Lorusso, G.

AU - Rice, S.

AU - Sinclair, L.

AU - Sumikama, T.

AU - Wu, J.

AU - Xu, Z. Y.

AU - Aoi, N.

AU - Baba, H.

AU - Bello Garrote, F. L.

AU - Benzoni, G.

AU - Daido, R.

AU - Dombrádi, Zs

AU - Fang, Y.

AU - Fukuda, N.

AU - Gey, G.

AU - Go, S.

AU - Gottardo, A.

AU - Inabe, N.

AU - Isobe, T.

AU - Kameda, D.

AU - Kobayashi, K.

AU - Kobayashi, M.

AU - Komatsubara, T.

AU - Kojouharov, I.

AU - Kubo, T.

AU - Kurz, N.

AU - Kuti, I.

AU - Li, Z.

AU - Matsushita, M.

AU - Michimasa, S.

AU - Moon, C. B.

AU - Nishibata, H.

AU - Nishizuka, I.

AU - Odahara, A.

AU - Şahin, E.

AU - Sakurai, H.

AU - Schaffner, H.

AU - Suzuki, H.

AU - Takeda, H.

AU - Tanaka, M.

AU - Taprogge, J.

AU - Vajta, Zs

AU - Yagi, A.

AU - Yokoyama, R.

PY - 2017/9/6

Y1 - 2017/9/6

N2 - Excited states have been studied in Sm159, Sm161, Sm162 (Z=62), Eu163 (Z=63), and Gd164 (Z=64), populated by isomeric decay following U238 projectile fission at RIBF, RIKEN. The isomer half-lives range from 50 ns to 2.6μs. In comparison with other published data, revised interpretations are proposed for Sm159 and Eu163. The first data for excited states in Sm161 are presented, where a 2.6-μs isomer is assigned a three-quasiparticle, Kπ=17/2- structure. The interpretation is supported by multi-quasiparticle Nilsson-BCS calculations, including the blocking of pairing correlations. A consistent set of reduced E1 hindrance factors is obtained. Limited evidence is also reported for isomeric decay in Sm163, Eu164, and Eu165.

AB - Excited states have been studied in Sm159, Sm161, Sm162 (Z=62), Eu163 (Z=63), and Gd164 (Z=64), populated by isomeric decay following U238 projectile fission at RIBF, RIKEN. The isomer half-lives range from 50 ns to 2.6μs. In comparison with other published data, revised interpretations are proposed for Sm159 and Eu163. The first data for excited states in Sm161 are presented, where a 2.6-μs isomer is assigned a three-quasiparticle, Kπ=17/2- structure. The interpretation is supported by multi-quasiparticle Nilsson-BCS calculations, including the blocking of pairing correlations. A consistent set of reduced E1 hindrance factors is obtained. Limited evidence is also reported for isomeric decay in Sm163, Eu164, and Eu165.

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DO - 10.1103/PhysRevC.96.034305

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