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 editorsVilen, 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 seriesPhysical Review C



Publication year2020


Issue number3

Article number034312

PublisherAmerican Physical Society

Publication countryUnited States

Publication languageEnglish


Publication open accessNot open

Publication channel open access

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

Publication is parallel publishedhttps://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.

Keywordsnuclear physicsastrophysics

Free keywordsbinding energy and masses; nuclear astrophysics; nuclear structure and decays; rare and new isotopes; r process

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Ministry reportingYes

Reporting Year2020

JUFO rating2

Last updated on 2024-22-04 at 23:15