Title Nuclear charge radii of 62−80Zn and their dependence on cross-shell proton excitations /
Authors Xie, L ; Yang, X. F ; Wraith, C ; Babcock, C ; Bieroń, J ; Billowes, J ; Bissell, M. L ; Blaum, K ; Cheal, B ; Filippin, L ; Flanagan, K. T ; Garcia Ruiz, R. F ; Gins, W ; Gaigalas, Gediminas ; Godefroid, M ; Gorges, C ; Grob, L. K ; Heylen, H ; Jönsson, P ; Kaufmann, S ; Kowalska, M ; Krämer, J ; Malbrunot-Ettenauer, S ; Neugart, R ; Neyens, G ; Nörtershäuser, W ; Otsuka, T ; Papuga, J ; Sánchez, R ; Tsunoda, Y ; Yordanov, D. T
DOI 10.1016/j.physletb.2019.134805
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Is Part of Physics letters B.. Amsterdam : Elsevier B.V.. 2019, vol. 797, art. no. 134805, p. [1-5].. ISSN 0370-2693. eISSN 1873-2445
Keywords [eng] Correlations ; Nuclear charge radii ; Nuclear deformation ; Shell closure ; Zinc
Abstract [eng] Nuclear charge radii of 62−80Zn 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 69−79Zn, 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, 68Ni and 78Ni.
Published Amsterdam : Elsevier B.V
Type Journal article
Language English
Publication date 2019