Evidence against the wobbling nature of low-spin bands in 135Pr

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.; Pakarinen, J.; Papadakis, P.; Partanen, J.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Sarén, J.; Scholey, C.; Sorri, J.; Stolze, S.; Uusitalo, J.; Cederwall, B.; Ertoprak, A.; Liu, H.; Kuti, I.; Timár, J.; Tucholski, A.; Srebrny, J.; Andreoiu, C.

doi:10.1016/j.physletb.2021.136840

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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

Julkaistu sarjassa

Physics Letters B

Tekijät

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. |

Pakarinen, J. |

Papadakis, P. |

Partanen, J. |

Rahkila, P. |

Ruotsalainen, P. |

Sandzelius, M. |

Sarén, J. |

Scholey, C. |

Sorri, J. |

Stolze, S. |

Uusitalo, J. |

Cederwall, B. |

Ertoprak, A. |

Liu, H. |

Kuti, I. |

Timár, J. |

Tucholski, A. |

Srebrny, J. |

Andreoiu, C.

Päivämäärä

2022

Oppiaine

Fysiikka Ydin- ja kiihdytinfysiikan huippuyksikkö Physics Centre of Excellence in Nuclear and Accelerator Based Physics

Tekijänoikeudet

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.

Julkaisija

Elsevier BV

ISSN Hae Julkaisufoorumista

0370-2693

Lisätietoja rahoituksesta

This work has been supported by the Special Research Assistant Project of the Chinese Academy of Sciences; by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB34000000); by the Academy of Finland under the Finnish Centre of Excellence Programme (2012-2017); by the EU 7th Framework Programme Project No. 262010 (ENSAR); by the National Research Foundation of Sout ... showmore

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