Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP

Vilen, M.; Kelly, J. M.; Kankainen, A.; Brodeur, M.; Aprahamian, A.; Canete, L.; de Groote, R. P.; de Roubin, A.; Eronen, T.; Jokinen, A.; Moore, I. D.; Mumpower, M. R.; Nesterenko, D. A.; O'Brien, J.; Perdomo, A. Pardo; Penttilä, H.; Reponen, M.; Rinta-Antila, S.; Surman, R.

doi:10.1103/PhysRevC.101.034312

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Vilen, M., Kelly, J. M., Kankainen, A., Brodeur, M., Aprahamian, A., Canete, L., de Groote, R. P., de Roubin, A., Eronen, T., Jokinen, A., Moore, I. D., Mumpower, M. R., Nesterenko, D. A., O'Brien, J., Perdomo, A. P., Penttilä, H., Reponen, M., Rinta-Antila, S., & Surman, R. (2020). Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP. Physical Review C, 101(3), Article 034312. https://doi.org/10.1103/PhysRevC.101.034312

Julkaistu sarjassa

Physical Review C

Tekijät

Vilen, M. |

Kelly, J. M. |

Kankainen, A. |

Brodeur, M. |

Aprahamian, A. |

Canete, L. |

de Groote, R. P. |

de Roubin, A. |

Eronen, T. |

Jokinen, A. |

Moore, I. D. |

Mumpower, M. R. |

Nesterenko, D. A. |

O'Brien, J. |

Perdomo, A. Pardo |

Penttilä, H. |

Reponen, M. |

Rinta-Antila, S. |

Surman, R.

Päivämäärä

2020

Oppiaine

Kiihdytinlaboratorio Accelerator Laboratory

Tekijänoikeudet

The JYFLTRAP double Penning trap at the Ion Guide Isotope Separator On-Line facility has been used to measure the atomic masses of 13 neutron-rich rare-earth isotopes. Eight of the nuclides, 161Pm, 163Sm, 164,165Eu, 167Gd, and 165,167,168Tb, were measured for the first time. The systematics of the mass surface has been studied via one- and two-neutron separation energies as well as neutron pairing-gap and shell-gap energies. The protonneutron pairing strength has also been investigated. The impact of the new mass values on the astrophysical rapid neutron capture process has been studied. The calculated abundance distribution results in a better agreement with the solar abundance pattern near the top of the rare-earth abundance peak at around A ≈ 165.

Julkaisija

American Physical Society

ISSN Hae Julkaisufoorumista

2469-9985

Rahoittaja(t)

Suomen Akatemia; Euroopan komissio

Rahoitusohjelmat(t)

Akatemiatutkija, SA

The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.

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 by the National Science Foundation (NSF) Grants No. PHY-1713857. A.K., D.N., L.C., and T.E. acknowledge support from the Academy of Finland under Projects No. 275389 and No. 295207. M.M. carried out this work under the ausp ... showmore

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