High-precision mass measurements of 25Al and 30P at JYFLTRAP

Canete, Laetitia; Kankainen, Anu; Eronen, Tommi; Gorelov, Dmitry; Hakala, Jani; Jokinen, Ari; Kolhinen, Veli; Koponen, Jukka; Moore, Iain; Reinikainen, Juuso; Rinta-Antila, Sami

doi:10.1140/epja/i2016-16124-0

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Canete, L., Kankainen, A., Eronen, T., Gorelov, D., Hakala, J., Jokinen, A., Kolhinen, V., Koponen, J., Moore, I., Reinikainen, J., & Rinta-Antila, S. (2016). High-precision mass measurements of 25Al and 30P at JYFLTRAP. European Physical Journal A, 52(5), Article 124. https://doi.org/10.1140/epja/i2016-16124-0

Julkaistu sarjassa

European Physical Journal A

Tekijät

Canete, Laetitia |

Kankainen, Anu |

Eronen, Tommi |

Gorelov, Dmitry |

Hakala, Jani |

Jokinen, Ari |

Kolhinen, Veli |

Koponen, Jukka |

Moore, Iain |

Reinikainen, Juuso |

Rinta-Antila, Sami

Päivämäärä

2016

Oppiaine

Kiihdytinlaboratorio Accelerator Laboratory

Tekijänoikeudet

© SIF, Springer-Verlag Berlin Heidelberg 2016. This is a final draft version of an article whose final and definitive form has been published by Springer. Published in this repository with the kind permission of the publisher.

The masses of the astrophysically relevant nuclei 25Al and 30P have been measured with a Penning trap for the first time. The mass-excess values for 25Al ( Δ=−8915.962(63) keV) and 30P ( Δ=−20200.854(64) keV) obtained with the JYFLTRAP double Penning trap mass spectrometer are in good agreement with the Atomic Mass Evaluation 2012 values but ≈ 5-10 times more precise. A high precision is required for calculating resonant proton-capture rates of astrophysically important reactions 25Al (p,γ)26Si and 30P(p,γ)31S. In this work, Q(p,γ)=5513.99(13) keV and Q(p,γ)=6130.64(24) keV were obtained for 25Al and 30P, respectively. The effect of the more precise values on the resonant proton-capture rates has been studied. In addition to nuclear astrophysics, the measured QEC value of 25Al, 4276.805(45) keV, is relevant for studies of T = 1/2 mirror beta decays which have a potential to be used to test the Conserved Vector Current hypothesis.

Julkaisija

Springer Berlin Heidelberg

ISSN Hae Julkaisufoorumista

1434-6001

Rahoittaja(t)

Suomen Akatemia

Rahoitusohjelmat(t)

Akatemiatutkija, SA

Lisätietoja rahoituksesta

This work has been supported by the EU 7th framework programme Integrating Activities - Transnational Access, project number: 262010 (ENSAR) and by the Academy of Finland under the Finnish Centre of Excellence Programme 2012-2017 (Nuclear and Accelerator Based Physics Research at JYFL). AK and LC acknowledge the support from the Academy of Finland under project No. 275389.

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