Prompt and delayed spectroscopy of 203At : Observation of a shears band and a 29/2+ isomeric state

Auranen, Kalle; Uusitalo, Juha; Juutinen, Sakari; Badran, Hussam; Bisso, F. Defranchi; Cox, Daniel; Grahn, Tuomas; Greenlees, Paul; Herzan, Andrej; Jakobsson, U.; Julin, Rauno; Konki, Joonas; Leino, Matti; Lightfoot, A.; Mallaburn, M. J.; Neuvonen, O.; Pakarinen, Janne; Papadakis, Philippos; Partanen, Jari; Rahkila, Panu; Sandzelius, Mikael; Sarén, Jan; Scholey, Catherine; Sorri, Juha; Stolze, Sanna; Wang, Y. K.

doi:10.1103/PhysRevC.97.024301

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Auranen, K., Uusitalo, J., Juutinen, S., Badran, H., Bisso, F. D., Cox, D., Grahn, T., Greenlees, P., Herzan, A., Jakobsson, U., Julin, R., Konki, J., Leino, M., Lightfoot, A., Mallaburn, M. J., Neuvonen, O., Pakarinen, J., Papadakis, P., Partanen, J., . . . Wang, Y. K. (2018). Prompt and delayed spectroscopy of 203At : Observation of a shears band and a 29/2+ isomeric state. Physical Review C, 97(2), Article 024301. https://doi.org/10.1103/PhysRevC.97.024301

Julkaistu sarjassa

Physical Review C

Tekijät

Auranen, Kalle |

Uusitalo, Juha |

Juutinen, Sakari |

Badran, Hussam |

Bisso, F. Defranchi |

Cox, Daniel |

Grahn, Tuomas |

Greenlees, Paul |

Herzan, Andrej |

Jakobsson, U. |

Julin, Rauno |

Konki, Joonas |

Leino, Matti |

Lightfoot, A. |

Mallaburn, M. J. |

Neuvonen, O. |

Pakarinen, Janne |

Papadakis, Philippos |

Partanen, Jari |

Rahkila, Panu |

Sandzelius, Mikael |

Sarén, Jan |

Scholey, Catherine |

Sorri, Juha |

Stolze, Sanna |

Wang, Y. K.

Päivämäärä

2018

Oppiaine

Kiihdytinlaboratorio Accelerator Laboratory

Tekijänoikeudet

Using fusion-evaporation reactions, a gas-filled recoil separator, recoil-gating technique and recoil-isomer decay tagging technique we have extended the level scheme of 203 At ( N = 118 ) significantly. We have observed an isomeric [ τ = 14.1 ( 3 ) μ s ] state with a spin and parity of 29 / 2 + . The isomeric state is suggested to originate from the π ( h 9 / 2 ) ⊗ ∣ ∣ 202 Po ; 11 − ⟩ coupling, and it is depopulated through 286 keV E 2 and 366 keV E 3 transitions. In addition, we have observed a cascade of magnetic-dipole transitions which is suggested to be generated by the shears mechanism.

Julkaisija

American Physical Society

ISSN Hae Julkaisufoorumista

2469-9985

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