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New collective structures in the 163Yb nucleus

  • Regular Article - Experimental Physics
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Abstract.

The 152Sm(16O, 5n)163Yb reaction at a beam energy of 93 MeV was used to study the excited states of 163Yb with the AFRODITE \(\gamma\)-ray spectrometer at iThemba LABS. The level scheme of 163Yb has been extended and new rotational bands established. The band based on the ground-state has been extended from a spin of 11/2- to spin 43/2-. A high-K band based on the neutron [505]11/2- Nilsson orbital has been observed and is reported for the first time in this work. Additional new states in 163Yb were observed which all decay to the yrast band. Some of these states are placed in a sequence which is conjectured to be a \( \gamma\) band involving a coupling with the i13/2[642]5/2+ neutron orbital. The band structures are discussed with reference to Cranked Shell Model (CSM) calculations and a systematic comparison with the neighbouring nuclei.

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Authors and Affiliations

  1. University of the Western Cape, Department of Physics, P/B X17, 7535, Bellville, South Africa

    M. A. Sithole, J. F. Sharpey Schafer, E. A. Lawrie, N. A. Khumalo, N. Erasmus, B. Maqabuka, S. P. Noncolela & B. R. Zikhali

  2. iThemba Laboratory for Accelerator Based Sciences, National Research Foundation, PO Box 722, 7129, Somerset-West, South Africa

    M. A. Sithole, S. N. T. Majola, T. D. Bucher, T. R. S. Dinoko, E. A. Lawrie, S. Jongile, L. Mdletshe, R. A. Bark, N. Erasmus, P. Jones, B. V. Kheswa, J. J. Lawrie, L. Makhathini, K. L. Malatji, B. Maqabuka, S. P. Noncolela, J. Ndayishimye, O. Shirinda & B. R. Zikhali

  3. University of Zululand, Department of Physics, P/B X1001, 3886, KwaDlangezwa, South Africa

    S. N. T. Majola, S. S. Ntshangase, S. Jongile, L. Mdletshe & B. R. Zikhali

  4. University of Johannesburg, Department of Physics, PO Box 524, 2006, Auckland Park, South Africa

    S. N. T. Majola, B. V. Kheswa & P. L. Masiteng

  5. University of Stellenbosch, Department of Physics, P/B X1, 7602, Matieland, South Africa

    T. D. Bucher, S. Jongile, L. Makhathini, K. L. Malatji & O. Shirinda

  6. RF Section, NMISA, Lynnwood Ridge, P/B X34, 0040, Pretoria, South Africa

    T. R. S. Dinoko

Authors
  1. M. A. Sithole
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  2. J. F. Sharpey Schafer
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  3. S. N. T. Majola
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  4. T. D. Bucher
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  5. T. R. S. Dinoko
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  6. S. S. Ntshangase
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  7. E. A. Lawrie
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  8. N. A. Khumalo
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  9. S. Jongile
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  10. L. Mdletshe
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  11. R. A. Bark
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  12. N. Erasmus
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  13. P. Jones
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  14. B. V. Kheswa
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  15. J. J. Lawrie
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  16. L. Makhathini
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  17. K. L. Malatji
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  18. B. Maqabuka
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  19. S. P. Noncolela
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  20. J. Ndayishimye
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  21. O. Shirinda
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  22. B. R. Zikhali
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  23. P. L. Masiteng
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Corresponding author

Correspondence to M. A. Sithole.

Additional information

Communicated by M.J. Garcia Borge

Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All data generated during this study are contained in this published article.]

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Sithole, M.A., Sharpey Schafer, J.F., Majola, S.N.T. et al. New collective structures in the 163Yb nucleus. Eur. Phys. J. A 55, 178 (2019). https://doi.org/10.1140/epja/i2019-12866-3

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  • DOI: https://doi.org/10.1140/epja/i2019-12866-3

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