Cu charge radii reveal a weak sub-shell effect at N=40

被引：43

作者：

Bissell, M. L. ^{[1
,2
]}

Carette, T. ^{[3
]}

Flanagan, K. T. ^{[1
,2
,4
]}

Vingerhoets, P. ^{[1
]}

Billowes, J. ^{[2
]}

Blaum, K. ^{[5
]}

Cheal, B. ^{[2
,6
]}

Fritzsche, S. ^{[7
,8
]}

Godefroid, M. ^{[3
]}

Kowalska, M. ^{[9
]}

Kraemer, J. ^{[10
,11
]}

Neugart, R. ^{[5
,10
]}

Neyens, G. ^{[1
]}

Noertershaeuser, W. ^{[10
,11
]}

Yordanov, D. T. ^{[5
,9
,12
]}

机构：

[1] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Leuven, Belgium

[2] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England

[3] Univ Libre Bruxelles, Chim Quant & Photophys, B-1050 Brussels, Belgium

[4] IPN, F-91940 Orsay, France

[5] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[6] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England

[7] Helmholtz Inst Jena, D-07743 Jena, Germany

[8] Univ Jena, Theoret Phys Inst, D-07743 Jena, Germany

[9] CERN, Dept Phys, CH-1211 Geneva 23, Switzerland

[10] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55128 Mainz, Germany

[11] Tech Univ Darmstadt, Inst Kernphys, Petersenstr 30, D-64289 Darmstadt, Germany

[12] Univ Paris 11, CSNSM CNRS IN2P3, F-91405 Orsay, France

来源：

PHYSICAL REVIEW C | 2016年 / 93卷 / 06期

基金：

英国科学技术设施理事会;

关键词：

ISOTOPE SHIFT CALCULATIONS; MODEL; DENSITIES; PROGRAM; PACKAGE; MOMENTS; CLOSURE; NUCLEI; IONS; NI;

D O I：

10.1103/PhysRevC.93.064318

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Collinear laser spectroscopy on Cu58-75 isotopes was performed at the CERN-ISOLDE radioactive ion beam facility. In this paper we report on the isotope shifts obtained from these measurements. State-of-the-art atomic physics calculations have been undertaken in order to determine the changes inmean-square charge radii delta < r(2)>(A,A') from the observed isotope shifts. A local minimum is observed in these radii differences at N = 40, providing evidence for a weak N = 40 sub-shell effect. However, comparison of delta < r(2)>(A,A') with a droplet model prediction including static deformation deduced from the spectroscopic quadrupole moments, points to the persistence of correlations at N = 40.

引用

页数：7

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