In-beam γ-ray spectroscopy of 211,213Ac and 211Ra

Louko, J.; Auranen, K.; Uusitalo, J.; Briscoe, A. D.; Grahn, T.; Greenlees, P. T.; Illana, A.; Joukainen, H.; Julin, R.; Jutila, H.; Leino, M.; Luoma, M.; Ojala, J.; Pakarinen, J.; Raggio, A.; Rahkila, P.; Romero, J.; Ruotsalainen, P.; Sandzelius, M.; Sarén, J.; Tolosa-Delgado, A.; Zimba, G.

doi:10.1103/physrevc.110.034311

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Louko, J., Auranen, K., Uusitalo, J., Briscoe, A. D., Grahn, T., Greenlees, P. T., Illana, A., Joukainen, H., Julin, R., Jutila, H., Leino, M., Luoma, M., Ojala, J., Pakarinen, J., Raggio, A., Rahkila, P., Romero, J., Ruotsalainen, P., Sandzelius, M., . . . Zimba, G. (2024). In-beam γ-ray spectroscopy of 211,213Ac and 211Ra. Physical Review C, 110(3), Article 034311. https://doi.org/10.1103/physrevc.110.034311

Julkaistu sarjassa

Physical Review C

Tekijät

Louko, J. |

Auranen, K. |

Uusitalo, J. |

Briscoe, A. D. |

Grahn, T. |

Greenlees, P. T. |

Illana, A. |

Joukainen, H. |

Julin, R. |

Jutila, H. |

Leino, M. |

Luoma, M. |

Ojala, J. |

Pakarinen, J. |

Raggio, A. |

Rahkila, P. |

Romero, J. |

Ruotsalainen, P. |

Sandzelius, M. |

Sarén, J. |

Tolosa-Delgado, A. |

Zimba, G.

Päivämäärä

2024

Tekijänoikeudet

The first in-beam 𝛾-ray spectroscopic study of the neutron-deficient actinium isotopes 211,213Ac has been carried out at the Accelerator Laboratory of the University of Jyväskylä using a highly selective recoil-decay tagging method with the jurogam 3 germanium-detector array and MARA separator. The nuclei of interest were produced using the 175Lu⁢(40Ar,4⁢𝑛)⁢211Ac and 180Hf⁢(37Cl,4⁢𝑛)⁢213Ac fusion-evaporation reactions. Excited states in 211Ac were observed for the first time. In 211Ac and 213Ac low-lying core-excited states whose excitation energies follow the systematic trends of their respective core states in even-even isotones 210Ra and 212Ra were identified. Additionally, we were able to extend the level scheme of 211Ra, which was also produced in the 40Ar+175Lu reaction. We also remeasured the half-lives of the ground states of these nuclei and also that of the (13/2+) isomeric state of 211Ra.

Julkaisija

American Physical Society (APS)

ISSN Hae Julkaisufoorumista

2469-9985

Rahoittaja(t)

Suomen Akatemia

Rahoitusohjelmat(t)

Tutkijatohtori, SA; Akatemiatutkijan tutkimuskulut, SA; Akatemiahanke, SA; Akatemiatutkija, SA

Lisätietoja rahoituksesta

This work was supported by the Research Council of Finland under Contracts No. 323710, No. 347154, No. 353786 (personal research projects, KA), and No. 339245. The project has received funding from the EU Horizon 2020 research and innovation programme under Grant Agreement No. 861198–LISA–H2020-MSCA-ITN-2019.

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