New isomer found in Sb89 51140: Sphericity and shell evolution between N=82 and N=90

R. Lozeva; H. Naïdja; F. Nowacki; J. Dudek; A. Odahara; C. B. Moon; S. Nishimura; P. Doornenbal; J. M. Daugas; P. A. Söderström; T. Sumikama; G. Lorusso; J. Wu; Z. Y. Xu; H. Baba; F. Browne; R. Daido; Y. Fang; T. Isobe; I. Kojouharov; N. Kurz; Z. Patel; S. Rice; H. Sakurai; H. Schaffner; L. Sinclair; H. Watanabe; A. Yagi; R. Yokoyama; T. Kubo; N. Inabe; H. Suzuki; N. Fukuda; D. Kameda; H. Takeda; D. S. Ahn; D. Murai; F. L.Bello Garrote; F. Didierjean; E. Ideguchi; T. Ishigaki; H. S. Jung; T. Komatsubara; Y. K. Kwon; P. Lee; C. S. Lee; S. Morimoto; M. Niikura; H. Nishibata; I. Nishizuka

doi:10.1103/PhysRevC.93.014316

New isomer found in Sb89 51140: Sphericity and shell evolution between N=82 and N=90

R. Lozeva, H. Naïdja, F. Nowacki, J. Dudek, A. Odahara, C. B. Moon, S. Nishimura, P. Doornenbal, J. M. Daugas, P. A. Söderström, T. Sumikama, G. Lorusso, J. Wu, Z. Y. Xu, H. Baba, F. Browne, R. Daido, Y. Fang, T. Isobe, I. KojouharovN. Kurz, Z. Patel, S. Rice, H. Sakurai, H. Schaffner, L. Sinclair, H. Watanabe, A. Yagi, R. Yokoyama, T. Kubo, N. Inabe, H. Suzuki, N. Fukuda, D. Kameda, H. Takeda, D. S. Ahn, D. Murai, F. L.Bello Garrote, F. Didierjean, E. Ideguchi, T. Ishigaki, H. S. Jung, T. Komatsubara, Y. K. Kwon, P. Lee, C. S. Lee, S. Morimoto, M. Niikura, H. Nishibata, I. Nishizuka

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

18 Citations (Scopus)

Abstract

In this article we report on the first spectroscopic information on Sb8951140 and the observation of an isomer in this nucleus with T1/2=41(8) μs. It is located in close proximity to Sn140 for N=90, where the νf7/2 orbit is completely filled. The possible origin of the isomeric state is a πg7/21×νf7/2-1 coupling configuration, resulting in a (6-) or (7-) spin-parity. This is likely caused by an inversion of the πg7/2 and πd5/2 orbitals at N=89. The existence of such an isomer far from stability is discussed extensively in the context of shell-model calculations and compared to results from mean-field calculations performed using a deformed Woods-Saxon potential. Both approaches suggest the observation of a single-particle excitation mode at an extreme neutron number.

Original language	English
Article number	014316
Journal	Physical Review C
Volume	93
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.93.014316
Publication status	Published - Jan 25 2016
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevC.93.014316

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Lozeva, R., Naïdja, H., Nowacki, F., Dudek, J., Odahara, A., Moon, C. B., Nishimura, S., Doornenbal, P., Daugas, J. M., Söderström, P. A., Sumikama, T., Lorusso, G., Wu, J., Xu, Z. Y., Baba, H., Browne, F., Daido, R., Fang, Y., Isobe, T., ... Nishizuka, I. (2016). New isomer found in Sb89 51140: Sphericity and shell evolution between N=82 and N=90. Physical Review C, 93(1), [014316]. https://doi.org/10.1103/PhysRevC.93.014316

New isomer found in Sb89 51140 : Sphericity and shell evolution between N=82 and N=90. / Lozeva, R.; Naïdja, H.; Nowacki, F.; Dudek, J.; Odahara, A.; Moon, C. B.; Nishimura, S.; Doornenbal, P.; Daugas, J. M.; Söderström, P. A.; Sumikama, T.; Lorusso, G.; Wu, J.; Xu, Z. Y.; Baba, H.; Browne, F.; Daido, R.; Fang, Y.; Isobe, T.; Kojouharov, I.; Kurz, N.; Patel, Z.; Rice, S.; Sakurai, H.; Schaffner, H.; Sinclair, L.; Watanabe, H.; Yagi, A.; Yokoyama, R.; Kubo, T.; Inabe, N.; Suzuki, H.; Fukuda, N.; Kameda, D.; Takeda, H.; Ahn, D. S.; Murai, D.; Garrote, F. L.Bello; Didierjean, F.; Ideguchi, E.; Ishigaki, T.; Jung, H. S.; Komatsubara, T.; Kwon, Y. K.; Lee, P.; Lee, C. S.; Morimoto, S.; Niikura, M.; Nishibata, H.; Nishizuka, I.

In: Physical Review C, Vol. 93, No. 1, 014316, 25.01.2016.

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

Lozeva, R, Naïdja, H, Nowacki, F, Dudek, J, Odahara, A, Moon, CB, Nishimura, S, Doornenbal, P, Daugas, JM, Söderström, PA, Sumikama, T, Lorusso, G, Wu, J, Xu, ZY, Baba, H, Browne, F, Daido, R, Fang, Y, Isobe, T, Kojouharov, I, Kurz, N, Patel, Z, Rice, S, Sakurai, H, Schaffner, H, Sinclair, L, Watanabe, H, Yagi, A, Yokoyama, R, Kubo, T, Inabe, N, Suzuki, H, Fukuda, N, Kameda, D, Takeda, H, Ahn, DS, Murai, D, Garrote, FLB, Didierjean, F, Ideguchi, E, Ishigaki, T, Jung, HS, Komatsubara, T, Kwon, YK, Lee, P, Lee, CS, Morimoto, S, Niikura, M, Nishibata, H & Nishizuka, I 2016, 'New isomer found in Sb89 51140: Sphericity and shell evolution between N=82 and N=90', Physical Review C, vol. 93, no. 1, 014316. https://doi.org/10.1103/PhysRevC.93.014316

Lozeva, R. ; Naïdja, H. ; Nowacki, F. ; Dudek, J. ; Odahara, A. ; Moon, C. B. ; Nishimura, S. ; Doornenbal, P. ; Daugas, J. M. ; Söderström, P. A. ; Sumikama, T. ; Lorusso, G. ; Wu, J. ; Xu, Z. Y. ; Baba, H. ; Browne, F. ; Daido, R. ; Fang, Y. ; Isobe, T. ; Kojouharov, I. ; Kurz, N. ; Patel, Z. ; Rice, S. ; Sakurai, H. ; Schaffner, H. ; Sinclair, L. ; Watanabe, H. ; Yagi, A. ; Yokoyama, R. ; Kubo, T. ; Inabe, N. ; Suzuki, H. ; Fukuda, N. ; Kameda, D. ; Takeda, H. ; Ahn, D. S. ; Murai, D. ; Garrote, F. L.Bello ; Didierjean, F. ; Ideguchi, E. ; Ishigaki, T. ; Jung, H. S. ; Komatsubara, T. ; Kwon, Y. K. ; Lee, P. ; Lee, C. S. ; Morimoto, S. ; Niikura, M. ; Nishibata, H. ; Nishizuka, I. / New isomer found in Sb89 51140 : Sphericity and shell evolution between N=82 and N=90. In: Physical Review C. 2016 ; Vol. 93, No. 1.

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title = "New isomer found in Sb89 51140: Sphericity and shell evolution between N=82 and N=90",

abstract = "In this article we report on the first spectroscopic information on Sb8951140 and the observation of an isomer in this nucleus with T1/2=41(8) μs. It is located in close proximity to Sn140 for N=90, where the νf7/2 orbit is completely filled. The possible origin of the isomeric state is a πg7/21×νf7/2-1 coupling configuration, resulting in a (6-) or (7-) spin-parity. This is likely caused by an inversion of the πg7/2 and πd5/2 orbitals at N=89. The existence of such an isomer far from stability is discussed extensively in the context of shell-model calculations and compared to results from mean-field calculations performed using a deformed Woods-Saxon potential. Both approaches suggest the observation of a single-particle excitation mode at an extreme neutron number.",

author = "R. Lozeva and H. Na{\"i}dja and F. Nowacki and J. Dudek and A. Odahara and Moon, {C. B.} and S. Nishimura and P. Doornenbal and Daugas, {J. M.} and S{\"o}derstr{\"o}m, {P. A.} and T. Sumikama and G. Lorusso and J. Wu and Xu, {Z. Y.} and H. Baba and F. Browne and R. Daido and Y. Fang and T. Isobe and I. Kojouharov and N. Kurz and Z. Patel and S. Rice and H. Sakurai and H. Schaffner and L. Sinclair and H. Watanabe and A. Yagi and R. Yokoyama and T. Kubo and N. Inabe and H. Suzuki and N. Fukuda and D. Kameda and H. Takeda and Ahn, {D. S.} and D. Murai and Garrote, {F. L.Bello} and F. Didierjean and E. Ideguchi and T. Ishigaki and Jung, {H. S.} and T. Komatsubara and Kwon, {Y. K.} and P. Lee and Lee, {C. S.} and S. Morimoto and M. Niikura and H. Nishibata and I. Nishizuka",

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AU - Lozeva, R.

AU - Naïdja, H.

AU - Nowacki, F.

AU - Dudek, J.

AU - Odahara, A.

AU - Moon, C. B.

AU - Nishimura, S.

AU - Doornenbal, P.

AU - Daugas, J. M.

AU - Söderström, P. A.

AU - Sumikama, T.

AU - Lorusso, G.

AU - Wu, J.

AU - Xu, Z. Y.

AU - Baba, H.

AU - Browne, F.

AU - Daido, R.

AU - Fang, Y.

AU - Isobe, T.

AU - Kojouharov, I.

AU - Kurz, N.

AU - Patel, Z.

AU - Rice, S.

AU - Sakurai, H.

AU - Schaffner, H.

AU - Sinclair, L.

AU - Watanabe, H.

AU - Yagi, A.

AU - Yokoyama, R.

AU - Kubo, T.

AU - Inabe, N.

AU - Suzuki, H.

AU - Fukuda, N.

AU - Kameda, D.

AU - Takeda, H.

AU - Ahn, D. S.

AU - Murai, D.

AU - Garrote, F. L.Bello

AU - Didierjean, F.

AU - Ideguchi, E.

AU - Ishigaki, T.

AU - Jung, H. S.

AU - Komatsubara, T.

AU - Kwon, Y. K.

AU - Lee, P.

AU - Lee, C. S.

AU - Morimoto, S.

AU - Niikura, M.

AU - Nishibata, H.

AU - Nishizuka, I.

PY - 2016/1/25

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N2 - In this article we report on the first spectroscopic information on Sb8951140 and the observation of an isomer in this nucleus with T1/2=41(8) μs. It is located in close proximity to Sn140 for N=90, where the νf7/2 orbit is completely filled. The possible origin of the isomeric state is a πg7/21×νf7/2-1 coupling configuration, resulting in a (6-) or (7-) spin-parity. This is likely caused by an inversion of the πg7/2 and πd5/2 orbitals at N=89. The existence of such an isomer far from stability is discussed extensively in the context of shell-model calculations and compared to results from mean-field calculations performed using a deformed Woods-Saxon potential. Both approaches suggest the observation of a single-particle excitation mode at an extreme neutron number.

AB - In this article we report on the first spectroscopic information on Sb8951140 and the observation of an isomer in this nucleus with T1/2=41(8) μs. It is located in close proximity to Sn140 for N=90, where the νf7/2 orbit is completely filled. The possible origin of the isomeric state is a πg7/21×νf7/2-1 coupling configuration, resulting in a (6-) or (7-) spin-parity. This is likely caused by an inversion of the πg7/2 and πd5/2 orbitals at N=89. The existence of such an isomer far from stability is discussed extensively in the context of shell-model calculations and compared to results from mean-field calculations performed using a deformed Woods-Saxon potential. Both approaches suggest the observation of a single-particle excitation mode at an extreme neutron number.

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ER -

New isomer found in Sb89 51140: Sphericity and shell evolution between N=82 and N=90

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