First candidates for γ vibrational bands built on the [505]11/2⁻ neutron orbital in odd-A Dy isotopes
Majola, S. N. T.; Sithole, M. A.; Mdletshe, L.; Hartley, D.; Timar, J.; Nyako, B. M.; Allmond, J. M.; Bark, R. A.; Beausang, C.; Bianco, L.; Bucher, T. D.; Bvumbi, S. P.; Carpenter, M. P.; Chiara, C. J.; Cooper, N.; Cullen, D. M.; Curien, D.; Dinoko, T. S.; Gall, B. J. P.; Garrett, P. E.; Greenlees, P. T.; Hirvonen, J.; Jakobsson, U.; Jones, P. M.; Julin, R.; Juutinen, S.; Ketelhut, S.; Kheswa, B., V; Kondev, F. G.; Korichi, A.; Kulp, W. D.; Lauritsen, T.; Lawrie, E. A.; Makhathini, L.; Masiteng, P. L.; Maqabuka, B.; McCutchan, E. A.; Miller, D.; Miller, S.; Minkova, A.; Msebi, L.; Mthembu, S. H.; Ndayishimye, J.; Nieminen, P.; Ngcobo, P. Z.; Ntshangase, S. S.; Orce, J. N.; Peura, P.; Rahkila, P.; Redon, N.; Riedinger, L. L.; Riley, M. A.; Roux, D. G.; Ruotsalainen, P.; Piot, J.; Saren, J.; Sharpey-Schafer, J. F.; Scholey, C.; Shirinda, O.; Simpson, J.; Sorri, J.; Stefanescu, I; Stolze, S.; Uusitalo, J.; Wang, X.; Werner, V; Wood, J. L.; Yu, C-H; Zhu, S.; Zimba, G. (2020-04-20)
Majola, S. N. T. and Sithole, M. A. and Mdletshe, L. and Hartley, D. and Tim\’ar, J. and Nyak\’o, B. M. and Allmond, J. M. and Bark, R. A. and Beausang, C. and Bianco, L. and Bucher, T. D. and Bvumbi, S. P. and Carpenter, M. P. and Chiara, C. J. and Cooper, N. and Cullen, D. M. and Curien, D. and Dinoko, T. S. and Gall, B. J. P. and Garrett, P. E. and Greenlees, P. T. and Hirvonen, J. and Jakobsson, U. and Jones, P. M. and Julin, R. and Juutinen, S. and Ketelhut, S. and Kheswa, B. V. and Kondev, F. G. and Korichi, A. and Kulp, W. D. and Lauritsen, T. and Lawrie, E. A. and Makhathini, L. and Masiteng, P. L. and Maqabuka, B. and McCutchan, E. A. and Miller, D. and Miller, S. and Minkova, A. and Msebi, L. and Mthembu, S. H. and Ndayishimye, J. and Nieminen, P. and Ngcobo, P. Z. and Ntshangase, S. S. and Orce, J. N. and Peura, P. and Rahkila, P. and Redon, N. and Riedinger, L. L. and Riley, M. A. and Roux, D. G. and Ruotsalainen, P. and Piot, J. and Saren, J. and Sharpey-Schafer, J. F. and Scholey, C. and Shirinda, O. and Simpson, J. and Sorri, J. and Stefanescu, I. and Stolze, S. and Uusitalo, J. and Wang, X. and Werner, V. and Wood, J. L. and Yu, C.-H. and Zhu, S. and Zimba, G. (2020) First candidates for γ vibrational bands built on the [505]11/2− neutron orbital in odd-A Dy isotopes, Phys. Rev. C, 101{4}, 044312, https://doi.org/10.1103/PhysRevC.101.044312
© 2020 American Physical Society.
https://rightsstatements.org/vocab/InC/1.0/
https://urn.fi/URN:NBN:fi-fe2020070947185
Tiivistelmä
Abstract
Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the ¹⁵⁵Gd(α,2n)¹⁵⁷Dy and ¹⁴⁸Nd(¹²C,5n)¹⁵⁵Dy reactions at 25 and 65 MeV, respectively. We report high-K bands, which are conjectured to be the first candidates of a Kπ=2⁺γ vibrational band, built on the [505]11/2⁻ neutron orbital, in both odd-A155,157Dy isotopes. The coupling of the first excited K=0⁺ states or the so-called β vibrational bands at 661 and 676 keV in ¹⁵⁴Dy and ¹⁵⁶Dy to the [505]11/2− orbital, to produce a Kπ=11/2⁻ band, was not observed in both ¹⁵⁵Dy and ¹⁵⁷Dy, respectively. The implication of these findings on the interpretation of the first excited 0⁺ states in the core nuclei ¹⁵⁴Dy and ¹⁵⁶Dy are also discussed.
Kokoelmat
- Avoin saatavuus [38865]