Isomer decay spectroscopy of Sm 164 and Gd 166: Midshell collectivity around N=100

Z. Patel; P. A. Söderström; Zs Podolyák; P. H. Regan; P. M. Walker; H. Watanabe; E. Ideguchi; G. S. Simpson; H. L. Liu; 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; 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/PhysRevLett.113.262502

Isomer decay spectroscopy of Sm 164 and Gd 166: Midshell collectivity around N=100

Z. Patel, P. A. Söderström, Zs Podolyák, P. H. Regan, P. M. Walker, H. Watanabe, E. Ideguchi, G. S. Simpson, H. L. Liu, S. Nishimura, Q. Wu, F. R. Xu, F. Browne, P. Doornenbal, G. Lorusso, S. Rice, L. Sinclair, T. Sumikama, J. Wu, Z. Y. XuN. Aoi, H. Baba, F. L. Bello Garrote, G. Benzoni, R. Daido, 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

SCI - Physics

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

Excited states in the N=102 isotones Gd166 and Sm164 have been observed following isomeric decay for the first time at RIBF, RIKEN. The half-lives of the isomeric states have been measured to be 950(60) and 600(140) ns for Gd166 and Sm164, respectively. Based on the decay patterns and potential energy surface calculations, including β6 deformation, a spin and parity of 6- has been assigned to the isomeric states in both nuclei. Collective observables are discussed in light of the systematics of the region, giving insight into nuclear shape evolution. The decrease in the ground-band energies of Gd166 and Sm164 (N=102) compared to Gd164 and Sm162 (N=100), respectively, presents evidence for the predicted deformed shell closure at N=100.

Original language	English
Article number	262502
Journal	Physical review letters
Volume	113
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.113.262502
Publication status	Published - 2014 Dec 22

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1103/PhysRevLett.113.262502

Cite this

Patel, Z., Söderström, P. A., Podolyák, Z., Regan, P. H., Walker, P. M., Watanabe, H., Ideguchi, E., Simpson, G. S., Liu, H. L., Nishimura, S., Wu, Q., Xu, F. R., Browne, F., Doornenbal, P., Lorusso, G., Rice, S., Sinclair, L., Sumikama, T., Wu, J., ... Yokoyama, R. (2014). Isomer decay spectroscopy of Sm 164 and Gd 166: Midshell collectivity around N=100. Physical review letters, 113(26), [262502]. https://doi.org/10.1103/PhysRevLett.113.262502

Patel, Z, Söderström, PA, Podolyák, Z, Regan, PH, Walker, PM, Watanabe, H, Ideguchi, E, Simpson, GS, Liu, HL, 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, 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 2014, 'Isomer decay spectroscopy of Sm 164 and Gd 166: Midshell collectivity around N=100', Physical review letters, vol. 113, no. 26, 262502. https://doi.org/10.1103/PhysRevLett.113.262502

@article{f49f3729bd624a2abad5c124820ab297,

title = "Isomer decay spectroscopy of Sm 164 and Gd 166: Midshell collectivity around N=100",

abstract = "Excited states in the N=102 isotones Gd166 and Sm164 have been observed following isomeric decay for the first time at RIBF, RIKEN. The half-lives of the isomeric states have been measured to be 950(60) and 600(140) ns for Gd166 and Sm164, respectively. Based on the decay patterns and potential energy surface calculations, including β6 deformation, a spin and parity of 6- has been assigned to the isomeric states in both nuclei. Collective observables are discussed in light of the systematics of the region, giving insight into nuclear shape evolution. The decrease in the ground-band energies of Gd166 and Sm164 (N=102) compared to Gd164 and Sm162 (N=100), respectively, presents evidence for the predicted deformed shell closure at N=100.",

author = "Z. Patel and S{\"o}derstr{\"o}m, {P. A.} and Zs Podoly{\'a}k and Regan, {P. H.} and Walker, {P. M.} and H. Watanabe and E. Ideguchi and Simpson, {G. S.} and Liu, {H. L.} 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 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} 2014 American Physical Society.",

year = "2014",

month = dec,

day = "22",

doi = "10.1103/PhysRevLett.113.262502",

language = "English",

volume = "113",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "26",

}

TY - JOUR

T1 - Isomer decay spectroscopy of Sm 164 and Gd 166

T2 - Midshell collectivity around N=100

AU - Patel, Z.

AU - Söderström, P. A.

AU - Podolyák, Zs

AU - Regan, P. H.

AU - Walker, P. M.

AU - Watanabe, H.

AU - Ideguchi, E.

AU - Simpson, G. S.

AU - Liu, H. L.

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 - 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 - 2014/12/22

Y1 - 2014/12/22

N2 - Excited states in the N=102 isotones Gd166 and Sm164 have been observed following isomeric decay for the first time at RIBF, RIKEN. The half-lives of the isomeric states have been measured to be 950(60) and 600(140) ns for Gd166 and Sm164, respectively. Based on the decay patterns and potential energy surface calculations, including β6 deformation, a spin and parity of 6- has been assigned to the isomeric states in both nuclei. Collective observables are discussed in light of the systematics of the region, giving insight into nuclear shape evolution. The decrease in the ground-band energies of Gd166 and Sm164 (N=102) compared to Gd164 and Sm162 (N=100), respectively, presents evidence for the predicted deformed shell closure at N=100.

AB - Excited states in the N=102 isotones Gd166 and Sm164 have been observed following isomeric decay for the first time at RIBF, RIKEN. The half-lives of the isomeric states have been measured to be 950(60) and 600(140) ns for Gd166 and Sm164, respectively. Based on the decay patterns and potential energy surface calculations, including β6 deformation, a spin and parity of 6- has been assigned to the isomeric states in both nuclei. Collective observables are discussed in light of the systematics of the region, giving insight into nuclear shape evolution. The decrease in the ground-band energies of Gd166 and Sm164 (N=102) compared to Gd164 and Sm162 (N=100), respectively, presents evidence for the predicted deformed shell closure at N=100.

UR - http://www.scopus.com/inward/record.url?scp=84919904385&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84919904385&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.113.262502

DO - 10.1103/PhysRevLett.113.262502

M3 - Article

AN - SCOPUS:84919904385

SN - 0031-9007

VL - 113

JO - Physical Review Letters

JF - Physical Review Letters

IS - 26

M1 - 262502

ER -

Isomer decay spectroscopy of Sm 164 and Gd 166: Midshell collectivity around N=100

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this