A1 Journal article (refereed)
Evidence against the wobbling nature of low-spin bands in 135Pr (2022)


Lv, B.F., Petrache, C.M., Lawrie, E.A., Guo, S., Astier, A., Zheng, K.K., Ong, H.J., Wang, J.G., Zhou, X.H., Sun, Z.Y., Greenlees, P.T., Badran, H., Calverley, T., Cox, D.M., Grahn, T., Hilton, J., Julin, R., Juutinen, S., Konki, J., . . . Andreoiu, C. (2022). Evidence against the wobbling nature of low-spin bands in 135Pr. Physics Letters B, 824, Article 136840. https://doi.org/10.1016/j.physletb.2021.136840


JYU authors or editors


Publication details

All authors or editorsLv, B.F.; Petrache, C.M.; Lawrie, E.A.; Guo, S.; Astier, A.; Zheng, K.K.; Ong, H.J.; Wang, J.G.; Zhou, X.H.; Sun, Z.Y.; et al.

Journal or seriesPhysics Letters B

ISSN0370-2693

eISSN1873-2445

Publication year2022

Volume824

Article number136840

PublisherElsevier BV

Publication countryNetherlands

Publication languageEnglish

DOIhttps://doi.org/10.1016/j.physletb.2021.136840

Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/79475


Abstract

The electromagnetic character of the ΔI=1 transitions connecting the 1- to 0-phonon and the 2- to 1-phonon wobbling bands should be dominated by an E2 component, due to the collective motion of the entire nuclear charge. In the present work it is shown, based on combined angular correlation and linear polarization measurements, that the mixing ratios of all analyzed connecting transitions between low-lying bands in 135Pr interpreted as 0-, 1-, and 2-phonon wobbling bands, have absolute values smaller than one. This indicates predominant M1 magnetic character, which is incompatible with the proposed wobbling nature. All experimental observables are instead in good agreement with quasiparticle-plus-triaxial-rotor model calculations, which describe the bands as resulting from a rapid re-alignment of the total angular momentum from the short to the intermediate nuclear axis.


Keywordsnuclear physicsspin (quantum mechanics)

Free keywordsγγγ-coincidences; angular correlations; particle rotor model; wobbling bands


Contributing organizations


Ministry reportingYes

Reporting Year2022

JUFO rating2


Last updated on 2024-10-03 at 17:35