Nuclear charge radii of Zn62-80 and their dependence on cross-shell proton excitations

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Nuclear charge radii of Zn62-80 and their dependence on cross-shell proton excitations

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Publication Article, peer reviewed scientific
Title Nuclear charge radii of Zn62-80 and their dependence on cross-shell proton excitations
Author Xie, L. ; Yang, X. F. ; Wraith, C. ; Babcock, C. ; Biero, J. ; Billowes, J. ; Bissell, M. L. ; Blaum, K. ; Cheal, B. ; Filippin, L. ; Flanagan, K. T. ; Ruiz, R. F. Garcia ; Gins, W. ; Gaigalas, G. ; Godefroid, M. ; Gorges, C. ; Grob, L. K. ; Heylen, H. ; Jönsson, Per ; Kaufmann, S. ; Kowalska, M. ; Krämer, J. ; Malbrunot-Ettenauer, S. ; Neugart, R. ; Neyens, G. ; Nörtershäuser, W. ; Otsuka, T. ; Papuga, J. ; Sanchez, R. ; Tsunoda, Y. ; Yordanov, D. T.
Date 2019
English abstract
Nuclear charge radii of Zn62-80 have been determined using collinear laser spectroscopy of bunched ion beams at CERN-ISOLDE. The subtle variations of observed charge radii, both within one isotope and along the full range of neutron numbers, are found to be well described in terms of the proton excitations across the Z = 28 shell gap, as predicted by large-scale shell model calculations. It comprehensively explains the changes in isomer-to-ground state mean square charge radii of Zn69-79, the inversion of the odd-even staggering around N = 40 and the odd-even staggering systematics of the Zn charge radii. With two protons above Z = 28, the observed charge radii of the Zn isotopic chain show a cumulative effect of different aspects of nuclear structure including single particle structure, shell closure, correlations and deformations near the proposed doubly magic nuclei, Ni-68 and Ni-78. (C) 2019 The Author(s). Published by Elsevier B.V.
DOI https://doi.org/10.1016/j.physletb.2019.134805 (link to publisher's fulltext.)
Link https://doi.org/10.1016/j.physletb.2019.134805 .Icon
Publisher Elsevier
Host/Issue Physics Letters B;
Volume 797
ISSN 0370-2693
Language eng (iso)
Subject Zinc
Nuclear charge radii
Shell closure
Nuclear deformation
Correlations
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/30584 Permalink to this page
Link to publication in DiVA Find this research publication in DiVA.
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