Spectroscopy of low spin states in 157Dy: Search for evidence of enhanced octupole correlations
| Autor: | Majola, S. N. T., Bark, R. A., Bianco, L., Bucher, T. D., Bvumbi, S. P., Cullen, D. M., Garrett, P. E., Greenlees, P. T., Hartley, D., Hirvonen, J, Jakobsson, U., Jones, P. M., Julin, R., Juutinen, S., Ketelhut, S., Kheswa, B. V., Korichi, A., Lawrie, E. A., Masiteng, P. L., Maqabuka, B., Mdletshe, L., Minkova, A., Ndayishimye, J., Nieminen, P., Newman, R., Nyako, B. M., Ntshangase, S. S., Peura, P., Rahkila, P., Riedinger, L. L., Riley, M., Roux, D., Ruotsalainen, P., Saren, J., Sharpey-Schafer, J. F., Scholey, C., Shirinda, O., Sithole, A., Sorri, J., Stolze, S., Timar, J., Uusitalo, J., Zimba, G. |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Phys. Rev. C 100, 034322 (2019) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.100.034322 |
| Popis: | Low-spin states of 157Dy have been studied using the JUROGAM II array, following the 155Gd ({\alpha}, 2n) reaction at a beam energy of 25 MeV. The level scheme of 157Dy has been expanded with four new bands. Rotational structures built on the [523]5/2- and [402]3/2+ neutron orbitals constitute new additions to the level scheme as do many of the inter- and intra-band transitions. This manuscript also reports the observation of cross I- to (I-1)- and I- to (I-1)+ E1 dipole transitions inter-linking structures built on the [523]5/2- (band 5) and [402]3/2+ (band 7) neutron orbitals. These interlacing band structures are interpreted as the bands of parity doublets with simplex quantum number s = -i related to possible octupole correlations. Comment: Published in Physical Review C (2019) |
| Databáze: | arXiv |
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