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., Juutinen, S., Ketelhut, S., Kheswa, B. V., Korichi, A., Lawrie, E. A., Masiteng, P. L., . . . Zimba, G. (2019). Spectroscopy of low-spin states in 157Dy : Search for evidence of enhanced octupole correlations. Physical Review C, 100(3), Article 034322. https://doi.org/10.1103/PhysRevC.100.034322


JYU authors or editors


Publication details

All authors or editorsMajola, 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 seriesPhysical Review C

ISSN2469-9985

eISSN2469-9993

Publication year2019

Volume100

Issue number3

Article number034322

PublisherAmerican Physical Society

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1103/PhysRevC.100.034322

Publication open accessNot open

Publication channel open access

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.


Keywordsnuclear physics

Free keywordscollective levels; collective models; nuclear spin and parity; nuclear structure and decays; shell model


Contributing organizations


Ministry reportingYes

Reporting Year2019

JUFO rating2


Last updated on 2024-11-05 at 01:05