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 toimittajatLv, 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 sarjaPhysics Letters B






KustantajaElsevier BV


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Julkaisu on rinnakkaistallennettu (JYX)https://jyx.jyu.fi/handle/123456789/79475


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-asiasanatydinfysiikkaspin (kvanttimekaniikka)

Vapaat asiasanatγγγ-coincidences; angular correlations; particle rotor model; wobbling bands

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Viimeisin päivitys 2024-22-04 klo 18:55