High-precision mass measurements for the isobaric multiplet mass equation at A = 52

Nesterenko, Dmitrii; Kankainen, Anu; Canete, Laetitia; Block, M.; Cox, Daniel; Eronen, Tommi; Fahlander, C.; Forsberg, U.; Gerl, J.; Golubev, P.; Hakala, Jani; Jokinen, Ari; Kolhinen, Veli; Koponen, Jukka; Lalović, N.; Lorenz, Ch.; Moore, Iain; Papadakis, Philippos; Reinikainen, Juuso; Rinta-Antila, Sami; Rudolph, D.; Sarmiento, L. G.; Voss, Annika; Äystö, Juha

doi:10.1088/1361-6471/aa67ae

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Nesterenko, D., Kankainen, A., Canete, L., Block, M., Cox, D., Eronen, T., Fahlander, C., Forsberg, U., Gerl, J., Golubev, P., Hakala, J., Jokinen, A., Kolhinen, V., Koponen, J., Lalović, N., Lorenz, Ch., Moore, I., Papadakis, P., Reinikainen, J., . . . Äystö, J. (2017). High-precision mass measurements for the isobaric multiplet mass equation at A = 52. Journal of Physics G: Nuclear and Particle Physics, 44(6), Article 065103. https://doi.org/10.1088/1361-6471/aa67ae

Julkaistu sarjassa

Journal of Physics G: Nuclear and Particle Physics

Tekijät

Nesterenko, Dmitrii |

Kankainen, Anu |

Canete, Laetitia |

Block, M. |

Cox, Daniel |

Eronen, Tommi |

Fahlander, C. |

Forsberg, U. |

Gerl, J. |

Golubev, P. |

Hakala, Jani |

Jokinen, Ari |

Kolhinen, Veli |

Koponen, Jukka |

Lalović, N. |

Lorenz, Ch. |

Moore, Iain |

Papadakis, Philippos |

Rudolph, D. |

Voss, Annika |

Päivämäärä

2017

Oppiaine

Kiihdytinlaboratorio Accelerator Laboratory

Tekijänoikeudet

© 2017 IOP Publishing Ltd. This is a final draft version of an article whose final and definitive form has been published by IOP. Published in this repository with the kind permission of the publisher.

Masses of 52Co, 52Com, 52Fe, 52Fem, and 52Mn have been measured with the JYFLTRAP double Penning trap mass spectrometer. The isobaric multiplet mass equation for the T = 2 quintet at A = 52 has been studied employing the new mass values. No significant breakdown (beyond the 3o level) of the quadratic form of the IMME was observed (x2/n = 2.4). The cubic coefficient was 6.0(32) keV (x2/n = 1.1). The excitation energies for the isomer and the T = 2 isobaric analog state in 52Co have been determined to be 374(13) keV and 2922(13) keV, respectively. The measured mass values for 52Co and 52Com are 29(10) keV and 16(15) keV higher, respectively, than obtained in a recent storage-ring experiment, and significantly lower than predicted by extrapolations. Consequently, this has an impact on the proton separation energies for 52Co and 53Ni relevant for the astrophysical rapid proton capture process. The Q value for the proton decay from the 19/2- isomer in 53Co has been determined with an unpre ... showmore

Julkaisija

IOP Publishing Ltd

ISSN Hae Julkaisufoorumista

0954-3899

Rahoittaja(t)

Suomen Akatemia

Rahoitusohjelmat(t)

Akatemiatutkija, SA

Lisätietoja rahoituksesta

This work has been supported by the Academy of Finland under the Finnish Centre of Excellence Programme 2012-2017 (Nuclear and Accelerator Based Physics Research at JYFL) and the Swedish Research Council (VR 2013-4271). AK, DN, and LC acknowledge support from the Academy of Finland under grant No. 275389.

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