A1 Journal article (refereed)
Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP (2020)

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

JYU authors or editors

Publication details

All authors or editors: Vilen, M.; Kelly, J. M.; Kankainen, A.; Brodeur, M.; Aprahamian, A.; Canete, L.; de Groote, R. P.; de Roubin, A.; Eronen, T.; Jokinen, A.; et al.

Journal or series: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Publication year: 2020

Volume: 101

Issue number: 3

Article number: 034312

Publisher: American Physical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevC.101.034312

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68359

Publication is parallel published: https://arxiv.org/abs/1908.05043


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.

Keywords: nuclear physics; astrophysics

Free keywords: binding energy and masses; nuclear astrophysics; nuclear structure and decays; rare and new isotopes; r process

Contributing organizations

Related projects

Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 2

Last updated on 2022-20-09 at 13:59