A1 Journal article (refereed)
Impact of Nuclear Deformation and Pairing on the Charge Radii of Palladium Isotopes (2022)

Geldhof, S., Kortelainen, M., Beliuskina, O., Campbell, P., Caceres, L., Cañete, L., Cheal, B., Chrysalidis, K., Devlin, C. S., de Groote, R. P., de Roubin, A., Eronen, T., Ge, Z., Gins, W., Koszorus, A., Kujanpää, S., Nesterenko, D., Ortiz-Cortes, A., Pohjalainen, I., . . . Sommer, F. (2022). Impact of Nuclear Deformation and Pairing on the Charge Radii of Palladium Isotopes. Physical Review Letters, 128(15), Article 152501. https://doi.org/10.1103/PhysRevLett.128.152501

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Publication details

All authors or editorsGeldhof, S.; Kortelainen, M.; Beliuskina, O.; Campbell, P.; Caceres, L.; Cañete, L.; Cheal, B.; Chrysalidis, K.; Devlin, C. S.; de Groote, R. P.; et al.

Journal or seriesPhysical Review Letters



Publication year2022

Publication date12/04/2022


Issue number15

Article number152501

PublisherAmerican Physical Society (APS)

Publication countryUnited States

Publication languageEnglish


Publication open accessNot open

Publication channel open access

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/81803


The impact of nuclear deformation can been seen in the systematics of nuclear charge radii, with radii generally expanding with increasing deformation. In this Letter, we present a detailed analysis of the precise relationship between nuclear quadrupole deformation and the nuclear size. Our approach combines the first measurements of the changes in the mean-square charge radii of well-deformed palladium isotopes between A=98 and A=118 with nuclear density functional calculations using Fayans functionals, specifically Fy(std) and Fy(Δr,HFB), and the UNEDF2 functional. The changes in mean-square charge radii are extracted from collinear laser spectroscopy measurements on the 4d95s 3D3→4d95p3P2 atomic transition. The analysis of the Fayans functional calculations reveals a clear link between a good reproduction of the charge radii for the neutron-rich Pd isotopes and the overestimated odd-even staggering: Both aspects can be attributed to the strength of the pairing correlations in the particular functional which we employ.

Keywordsnuclear physicspalladiumisotopes

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Ministry reportingYes

Reporting Year2022

JUFO rating3

Last updated on 2024-15-06 at 00:26