QEC value of the superallowed β emitter 42Sc

Eronen, Tommi; Hardy, J. C.; Canete, Laetitia; Jokinen, Ari; Hakala, Jani; Kankainen, Anu; Kolhinen, Veli; Koponen, Jukka; Moore, Iain; Murray, I. M.; Penttilä, Heikki; Pohjalainen, Ilkka; Poleshchuk, O.; Reinikainen, Juuso; Rinta-Antila, Sami; Soukouti, N.; Voss, Annika; Äystö, Juha

doi:10.1103/PhysRevC.95.025501

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Eronen, T., Hardy, J. C., Canete, L., Jokinen, A., Hakala, J., Kankainen, A., . . . Äystö, J. (2017). QEC value of the superallowed β emitter 42Sc. Physical Review C, 95 (2), 025501. doi:10.1103/PhysRevC.95.025501

Published in

Physical Review C

Authors

Eronen, Tommi |

Hardy, J. C. |

Canete, Laetitia |

Jokinen, Ari |

Hakala, Jani |

Kankainen, Anu |

Kolhinen, Veli |

Koponen, Jukka |

Moore, Iain |

Murray, I. M. |

Poleshchuk, O. |

Soukouti, N. |

Voss, Annika |

Äystö, Juha

Date

2017

Copyright

The QEC value of the superallowed β+ emitter 42Sc has been measured with the JYFLTRAP Penning-trap mass spectrometer at the University of Jyvaskylä to be 6426.350(53) keV. This result is at least a factor of four more precise than all previous measurements, which were also inconsistent with one another. As a byproduct we determine the excitation energy of the 7+ isomeric state in 42Sc to be 616.762(46) keV, which deviates by 8σ from the previous measurement.

Publisher

American Physical Society

ISSN Search the Publication Forum

2469-9985