Low-lying level structure of the neutron-rich nucleus 109Nb: A possible oblate-shape isomer

H. Watanabe, T. Sumikama, S. Nishimura, K. Yoshinaga, Z. Li, Y. Miyashita, K. Yamaguchi, H. Baba, J. S. Berryman, N. Blasi, A. Bracco, F. Camera, J. Chiba, P. Doornenbal, Shintaro Go, T. Hashimoto, S. Hayakawa, C. Hinke, E. Ideguchi, T. IsobeY. Ito, D. G. Jenkins, Y. Kawada, N. Kobayashi, Y. Kondo, R. Krücken, S. Kubono, G. Lorusso, T. Nakano, M. Kurata-Nishimura, A. Odahara, H. J. Ong, S. Ota, Zs Podolyák, H. Sakurai, H. Scheit, Y. Shi, K. Steiger, D. Steppenbeck, K. Sugimoto, K. Tajiri, S. Takano, A. Takashima, Takashi Teranishi, Y. Wakabayashi, P. M. Walker, O. Wieland, F. R. Xu, H. Yamaguchi

研究成果: ジャーナルへの寄稿記事

20 引用 (Scopus)

抄録

The neutron-rich nuclei 109Nb and 109Zr have been populated using in-flight fission of a 238U beam at 345 MeV/nucleon at the RIBF facility. A T1/2=150(30) ns isomer at 313 keV has been identified in 109Nb for the first time. The low-lying levels in 109Nb have been also populated following the β-decay of 109Zr. Based on the difference in feeding pattern between the isomeric and β decays, the decay scheme from the isomeric state in 109Nb was established. The observed hindrances of the electromagnetic transitions deexciting the isomeric state are discussed in terms of possible shape coexistence. Potential energy surface calculations for single-proton configurations predict the presence of low-lying oblate-deformed states in 109Nb.

元の言語英語
ページ(範囲)186-190
ページ数5
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
696
発行部数3
DOI
出版物ステータス出版済み - 1 31 2011

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isomers
neutrons
nuclei
decay
fission
potential energy
flight
electromagnetism
protons
configurations

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

これを引用

Low-lying level structure of the neutron-rich nucleus 109Nb : A possible oblate-shape isomer. / Watanabe, H.; Sumikama, T.; Nishimura, S.; Yoshinaga, K.; Li, Z.; Miyashita, Y.; Yamaguchi, K.; Baba, H.; Berryman, J. S.; Blasi, N.; Bracco, A.; Camera, F.; Chiba, J.; Doornenbal, P.; Go, Shintaro; Hashimoto, T.; Hayakawa, S.; Hinke, C.; Ideguchi, E.; Isobe, T.; Ito, Y.; Jenkins, D. G.; Kawada, Y.; Kobayashi, N.; Kondo, Y.; Krücken, R.; Kubono, S.; Lorusso, G.; Nakano, T.; Kurata-Nishimura, M.; Odahara, A.; Ong, H. J.; Ota, S.; Podolyák, Zs; Sakurai, H.; Scheit, H.; Shi, Y.; Steiger, K.; Steppenbeck, D.; Sugimoto, K.; Tajiri, K.; Takano, S.; Takashima, A.; Teranishi, Takashi; Wakabayashi, Y.; Walker, P. M.; Wieland, O.; Xu, F. R.; Yamaguchi, H.

:: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 巻 696, 番号 3, 31.01.2011, p. 186-190.

研究成果: ジャーナルへの寄稿記事

Watanabe, H, Sumikama, T, Nishimura, S, Yoshinaga, K, Li, Z, Miyashita, Y, Yamaguchi, K, Baba, H, Berryman, JS, Blasi, N, Bracco, A, Camera, F, Chiba, J, Doornenbal, P, Go, S, Hashimoto, T, Hayakawa, S, Hinke, C, Ideguchi, E, Isobe, T, Ito, Y, Jenkins, DG, Kawada, Y, Kobayashi, N, Kondo, Y, Krücken, R, Kubono, S, Lorusso, G, Nakano, T, Kurata-Nishimura, M, Odahara, A, Ong, HJ, Ota, S, Podolyák, Z, Sakurai, H, Scheit, H, Shi, Y, Steiger, K, Steppenbeck, D, Sugimoto, K, Tajiri, K, Takano, S, Takashima, A, Teranishi, T, Wakabayashi, Y, Walker, PM, Wieland, O, Xu, FR & Yamaguchi, H 2011, 'Low-lying level structure of the neutron-rich nucleus 109Nb: A possible oblate-shape isomer', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 巻. 696, 番号 3, pp. 186-190. https://doi.org/10.1016/j.physletb.2010.12.028
Watanabe, H. ; Sumikama, T. ; Nishimura, S. ; Yoshinaga, K. ; Li, Z. ; Miyashita, Y. ; Yamaguchi, K. ; Baba, H. ; Berryman, J. S. ; Blasi, N. ; Bracco, A. ; Camera, F. ; Chiba, J. ; Doornenbal, P. ; Go, Shintaro ; Hashimoto, T. ; Hayakawa, S. ; Hinke, C. ; Ideguchi, E. ; Isobe, T. ; Ito, Y. ; Jenkins, D. G. ; Kawada, Y. ; Kobayashi, N. ; Kondo, Y. ; Krücken, R. ; Kubono, S. ; Lorusso, G. ; Nakano, T. ; Kurata-Nishimura, M. ; Odahara, A. ; Ong, H. J. ; Ota, S. ; Podolyák, Zs ; Sakurai, H. ; Scheit, H. ; Shi, Y. ; Steiger, K. ; Steppenbeck, D. ; Sugimoto, K. ; Tajiri, K. ; Takano, S. ; Takashima, A. ; Teranishi, Takashi ; Wakabayashi, Y. ; Walker, P. M. ; Wieland, O. ; Xu, F. R. ; Yamaguchi, H. / Low-lying level structure of the neutron-rich nucleus 109Nb : A possible oblate-shape isomer. :: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2011 ; 巻 696, 番号 3. pp. 186-190.
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title = "Low-lying level structure of the neutron-rich nucleus 109Nb: A possible oblate-shape isomer",
abstract = "The neutron-rich nuclei 109Nb and 109Zr have been populated using in-flight fission of a 238U beam at 345 MeV/nucleon at the RIBF facility. A T1/2=150(30) ns isomer at 313 keV has been identified in 109Nb for the first time. The low-lying levels in 109Nb have been also populated following the β-decay of 109Zr. Based on the difference in feeding pattern between the isomeric and β decays, the decay scheme from the isomeric state in 109Nb was established. The observed hindrances of the electromagnetic transitions deexciting the isomeric state are discussed in terms of possible shape coexistence. Potential energy surface calculations for single-proton configurations predict the presence of low-lying oblate-deformed states in 109Nb.",
author = "H. Watanabe and T. Sumikama and S. Nishimura and K. Yoshinaga and Z. Li and Y. Miyashita and K. Yamaguchi and H. Baba and Berryman, {J. S.} and N. Blasi and A. Bracco and F. Camera and J. Chiba and P. Doornenbal and Shintaro Go and T. Hashimoto and S. Hayakawa and C. Hinke and E. Ideguchi and T. Isobe and Y. Ito and Jenkins, {D. G.} and Y. Kawada and N. Kobayashi and Y. Kondo and R. Kr{\"u}cken and S. Kubono and G. Lorusso and T. Nakano and M. Kurata-Nishimura and A. Odahara and Ong, {H. J.} and S. Ota and Zs Podoly{\'a}k and H. Sakurai and H. Scheit and Y. Shi and K. Steiger and D. Steppenbeck and K. Sugimoto and K. Tajiri and S. Takano and A. Takashima and Takashi Teranishi and Y. Wakabayashi and Walker, {P. M.} and O. Wieland and Xu, {F. R.} and H. Yamaguchi",
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TY - JOUR

T1 - Low-lying level structure of the neutron-rich nucleus 109Nb

T2 - A possible oblate-shape isomer

AU - Watanabe, H.

AU - Sumikama, T.

AU - Nishimura, S.

AU - Yoshinaga, K.

AU - Li, Z.

AU - Miyashita, Y.

AU - Yamaguchi, K.

AU - Baba, H.

AU - Berryman, J. S.

AU - Blasi, N.

AU - Bracco, A.

AU - Camera, F.

AU - Chiba, J.

AU - Doornenbal, P.

AU - Go, Shintaro

AU - Hashimoto, T.

AU - Hayakawa, S.

AU - Hinke, C.

AU - Ideguchi, E.

AU - Isobe, T.

AU - Ito, Y.

AU - Jenkins, D. G.

AU - Kawada, Y.

AU - Kobayashi, N.

AU - Kondo, Y.

AU - Krücken, R.

AU - Kubono, S.

AU - Lorusso, G.

AU - Nakano, T.

AU - Kurata-Nishimura, M.

AU - Odahara, A.

AU - Ong, H. J.

AU - Ota, S.

AU - Podolyák, Zs

AU - Sakurai, H.

AU - Scheit, H.

AU - Shi, Y.

AU - Steiger, K.

AU - Steppenbeck, D.

AU - Sugimoto, K.

AU - Tajiri, K.

AU - Takano, S.

AU - Takashima, A.

AU - Teranishi, Takashi

AU - Wakabayashi, Y.

AU - Walker, P. M.

AU - Wieland, O.

AU - Xu, F. R.

AU - Yamaguchi, H.

PY - 2011/1/31

Y1 - 2011/1/31

N2 - The neutron-rich nuclei 109Nb and 109Zr have been populated using in-flight fission of a 238U beam at 345 MeV/nucleon at the RIBF facility. A T1/2=150(30) ns isomer at 313 keV has been identified in 109Nb for the first time. The low-lying levels in 109Nb have been also populated following the β-decay of 109Zr. Based on the difference in feeding pattern between the isomeric and β decays, the decay scheme from the isomeric state in 109Nb was established. The observed hindrances of the electromagnetic transitions deexciting the isomeric state are discussed in terms of possible shape coexistence. Potential energy surface calculations for single-proton configurations predict the presence of low-lying oblate-deformed states in 109Nb.

AB - The neutron-rich nuclei 109Nb and 109Zr have been populated using in-flight fission of a 238U beam at 345 MeV/nucleon at the RIBF facility. A T1/2=150(30) ns isomer at 313 keV has been identified in 109Nb for the first time. The low-lying levels in 109Nb have been also populated following the β-decay of 109Zr. Based on the difference in feeding pattern between the isomeric and β decays, the decay scheme from the isomeric state in 109Nb was established. The observed hindrances of the electromagnetic transitions deexciting the isomeric state are discussed in terms of possible shape coexistence. Potential energy surface calculations for single-proton configurations predict the presence of low-lying oblate-deformed states in 109Nb.

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U2 - 10.1016/j.physletb.2010.12.028

DO - 10.1016/j.physletb.2010.12.028

M3 - Article

AN - SCOPUS:78651078111

VL - 696

SP - 186

EP - 190

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 3

ER -