Impact of Nuclear Deformation and Pairing on the Charge Radii of Palladium Isotopes

被引：24

作者：

Geldhof, S. ^{[1
,2
]}

Kortelainen, M. ^{[1
]}

Beliuskina, O. ^{[1
]}

Campbell, P. ^{[3
]}

Caceres, L. ^{[4
]}

Canete, L. ^{[1
]}

Cheal, B. ^{[5
]}

Chrysalidis, K. ^{[6
]}

Devlin, C. S. ^{[5
]}

de Groote, R. P. ^{[1
]}

de Roubin, A. ^{[1
]}

Eronen, T. ^{[1
]}

Ge, Z. ^{[1
]}

Gins, W.

Koszorus, A. ^{[5
]}

Kujanpaa, S. ^{[1
]}

Nesterenko, D. ^{[1
]}

Ortiz-Cortes, A. ^{[1
,4
]}

Pohjalainen, I. ^{[1
,7
]}

Moore, I. D. ^{[1
]}

Raggio, A. ^{[1
]}

Reponen, M. ^{[1
]}

Romero, J. ^{[1
]}

Sommer, F. ^{[8
]}

机构：

[1] Univ Jyvaskyla, Dept Phys, Accelerator Lab, Jyvaskyla 40014, Finland

[2] Katholieke Univ Leuven, Inst Kern Stralingsfysica, B-3001 Leuven, Belgium

[3] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England

[4] CEA, Grand Accelarateur Natl Ions Lou, DSM, CNRSM,IN2P3, F-14000 Caen, France

[5] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England

[6] CERN, CH-1217 Geneva, Switzerland

[7] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

[8] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 128卷 / 15期

基金：

英国科学技术设施理事会;

关键词：

LASER SPECTROSCOPY; SHAPE; MASSES;

D O I：

10.1103/PhysRevLett.128.152501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 1/4 98 and A 1/4 118 with nuclear density functional calculations using Fayans functionals, specifically Fy(std) and Fyo Delta r, HFB thorn , and the UNEDF2 functional. The changes in mean-square charge radii are extracted from collinear laser spectroscopy measurements on the 4d95s 3D3 -> 4d95p 3P2 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.

引用

页数：6

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