A1 Journal article (refereed)
Spectroscopy of low-spin states in 157Dy : Search for evidence of enhanced octupole correlations (2019)


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. et al. (2019). Spectroscopy of low-spin states in 157Dy : Search for evidence of enhanced octupole correlations. Physical Review C, 100 (3), 034322. DOI: 10.1103/PhysRevC.100.034322


JYU authors or editors


Publication details

All authors or editors: 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.; et al.
Journal or series: Physical Review C
ISSN: 2469-9985
eISSN: 2469-9993
Publication year: 2019
Volume: 100
Issue number: 3
Article number: 034322
Publisher: American Physical Society
Publication country: United States
Publication language: English
Open Access: Publication channel is not openly available
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/65775


Abstract

Low-spin states of 157Dy have been studied using the JUROGAM II array, following the 155Gd (α, 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 intraband transitions. This manuscript also reports the observation of cross I+→(I–1)− and I−→(I–1)+ E1 dipole transitions interlinking 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.

Keywords: nuclear physics
Free keywords: collective levels; collective models; nuclear spin and parity; nuclear structure and decays; shell model


Contributing organizations


Ministry reporting: Yes
Preliminary JUFO rating: 2

Last updated on 2019-08-10 at 08:55