A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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
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Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: 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.; et al.
Lehti tai sarja: Physics Letters B
ISSN: 0370-2693
eISSN: 1873-2445
Julkaisuvuosi: 2022
Volyymi: 824
Artikkelinumero: 136840
Kustantaja: Elsevier BV
Julkaisumaa: Alankomaat
Julkaisun kieli: englanti
DOI: https://doi.org/10.1016/j.physletb.2021.136840
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/79475
Tiivistelmä
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.
YSO-asiasanat: ydinfysiikka; spin (kvanttimekaniikka)
Vapaat asiasanat: γγγ-coincidences; angular correlations; particle rotor model; wobbling bands
Liittyvät organisaatiot
OKM-raportointi: Kyllä
VIRTA-lähetysvuosi: 2022
JUFO-taso: 2
