γ -Ray spectroscopy above the 9+ isomeric state in the N = Z nucleus 66As

Joukainen, Henna; Ruotsalainen, Panu; Sarén, Jan; Srivastava, Praveen C.; Patel, Deepak; Julin, Rauno; Auranen, Kalle; Ge, Zhuang; Grahn, Tuomas; Greenlees, Paul; Illana, Andres; Jutila, Henri; Leino, Matti; Louko, Jussi; Luoma, Minna; Ojala, Joonas; Pakarinen, Janne; Rahkila, Panu; Sandzelius, Mikael; Tann, Holly; Uusitalo, Juha; Zimba, George L.

doi:10.1140/epja/s10050-024-01458-5

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Joukainen, H., Ruotsalainen, P., Sarén, J., Srivastava, P. C., Patel, D., Julin, R., Auranen, K., Ge, Z., Grahn, T., Greenlees, P., Illana, A., Jutila, H., Leino, M., Louko, J., Luoma, M., Ojala, J., Pakarinen, J., Rahkila, P., Sandzelius, M., . . . Zimba, G. L. (2024). γ -Ray spectroscopy above the 9+ isomeric state in the N = Z nucleus 66As. European Physical Journal A, 60, Article 241. https://doi.org/10.1140/epja/s10050-024-01458-5

Julkaistu sarjassa

European Physical Journal A

Tekijät

Joukainen, Henna |

Ruotsalainen, Panu |

Sarén, Jan |

Srivastava, Praveen C. |

Patel, Deepak |

Julin, Rauno |

Auranen, Kalle |

Ge, Zhuang |

Grahn, Tuomas |

Greenlees, Paul |

Illana, Andres |

Jutila, Henri |

Leino, Matti |

Louko, Jussi |

Luoma, Minna |

Ojala, Joonas |

Pakarinen, Janne |

Rahkila, Panu |

Sandzelius, Mikael |

Tann, Holly |

Uusitalo, Juha |

Zimba, George L.

Päivämäärä

2024

Tekijänoikeudet

Excited states above the 9+ isomer in the oddodd N = Z nucleus 66As were studied by employing the 40Ca(28Si, pn) fusion-evaporation reaction at the Accelerator Laboratory of the University of Jyväskylä, Finland. A key method in this study was the use of conversion electrons emitted in the de-excitation of the isomeric state in 66As as a tag for prompt γ rays. Several new states have been added to the 66As level scheme, which was extended up to a tentative spin of 23h¯. The previously reported even-spin yrast band has been reassigned to have odd spin values. The odd spin states above the 9+ isomer are compared with shell-model calculations using the jj44b and JUN45 interactions. Additionally, the recoil-β tagging efficiency of the recently developed scintillator detector named Tuike has been determined experimentally for the first time.

Julkaisija

Springer Nature

ISSN Hae Julkaisufoorumista

1434-6001

Lisätietoja rahoituksesta

Open Access funding provided by University of Jyväskylä (JYU). Henna Joukainen has received funding for this study from the Vilho, Yrjö, and Kalle Väisälä foundation.

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