Local suppression of collectivity in the N=80 isotones at the Z=58 subshell closure

Bauer, C.; Rainovski, G.; Pietralla, N.; Bianco, D.; Blazhev, A.; Bloch, T.; Bonig, S.; Damyanova, A.; Danchev, M.; Gladnishki, K.A.; Kroll, T.; Leske, J.; Iudice, N. Lo; Moller, T.; Moschner, K.; Pakarinen, Janne; Reiter, Peter; Scheck, M.; Seidlitz, M.; Siebeck, B.; Stahl, C.; Stegmann, R.; Stora, T.; Stoyanov, Ch; Tarpanov, D.; Vermeulen, M.J.; Voulot, D.; Warr, N.; Wenander, F.; Werner, V.; De Witte, H.

doi:10.1103/PhysRevC.88.021302

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Bauer, C., Rainovski, G., Pietralla, N., Bianco, D., Blazhev, A., Bloch, T., Bonig, S., Damyanova, A., Danchev, M., Gladnishki, K.A., Kroll, T., Leske, J., Iudice, N. L., Moller, T., Moschner, K., Pakarinen, J., Reiter, P., Scheck, M., Seidlitz, M., . . . De Witte, H. (2013). Local suppression of collectivity in the N=80 isotones at the Z=58 subshell closure. Physical Review C, 88, Article 021302R. https://doi.org/10.1103/PhysRevC.88.021302

Julkaistu sarjassa

Physical Review C

Tekijät

Bauer, C. |

Rainovski, G. |

Pietralla, N. |

Bianco, D. |

Blazhev, A. |

Bloch, T. |

Bonig, S. |

Damyanova, A. |

Danchev, M. |

Gladnishki, K.A. |

Kroll, T. |

Leske, J. |

Iudice, N. Lo |

Moller, T. |

Moschner, K. |

Pakarinen, Janne |

Reiter, Peter |

Scheck, M. |

Seidlitz, M. |

Siebeck, B. |

Stahl, C. |

Stegmann, R. |

Stora, T. |

Stoyanov, Ch |

Tarpanov, D. |

Vermeulen, M.J. |

Voulot, D. |

Warr, N. |

Wenander, F. |

Werner, V. |

De Witte, H.

Päivämäärä

2013

Oppiaine

Fysiikka Kiihdytinlaboratorio Physics Accelerator Laboratory

Tekijänoikeudet

Background: Recent data on N = 80 isotones have suggested that the proton π(1g7/2) subshell closure at Z = 58 has an impact on the properties of low-lying collective states. Purpose: Knowledge of the B(E2; 2+ 1 → 0+ 1 ) value of 140Nd is needed in order to test this conjecture. Method: The unstable, neutron-rich nucleus 140Nd was investigated via projectile Coulomb excitation at the REX-ISOLDE facility with the MINIBALL spectrometer. Results: The B(E2) value of 33(2) W.u. expands the N = 80 systematics beyond the Z = 58 subshell closure. Conclusions: The measurement demonstrates that the reduced collectivity of 138Ce is a local effect possibly due to the Z = 58 subshell closure and requests refined theoretical calculations. The latter predict a smoothly increasing trend.

Julkaisija

American Physical Society

ISSN Hae Julkaisufoorumista

0556-2813

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