Laser spectroscopy of neutron-rich tin isotopes: A discontinuity in charge radii across the N=82 shell closure

Journal article


Publication Details

Author(s): Gorges C, Rodríguez LV, Balabanski DL, Bissell ML, Blaum K, Cheal B, Garcia Ruiz RF, Georgiev G, Gins W, Heylen H, Kanellakopoulos A, Kaufmann S, Kowalska M, Lagaki V, Lechner S, Maaß B, Malbrunot-Ettenauer S, Nazarewicz W, Neugart R, Neyens G, Nörtershäuser W, Reinhard PG, Sailer S, Sánchez R, Schmidt S, Wehner L, Wraith C, Xie L, Xu ZY, Yang XF, Yordanov DT
Journal: Physical Review Letters
Publication year: 2019
Volume: 122
Journal issue: 19
ISSN: 0031-9007
eISSN: 1079-7114


Abstract

The change in mean-square nuclear charge radii δ2© along the even-A tin isotopic chain Sn108-134 has been investigated by means of collinear laser spectroscopy at ISOLDE/CERN using the atomic transitions 5p2 S10→5p6 sP11 and 5p2 P30→5p6s P31. With the determination of the charge radius of Sn134 and corrected values for some of the neutron-rich isotopes, the evolution of the charge radii across the N=82 shell closure is established. A clear kink at the doubly magic Sn132 is revealed, similar to what has been observed at N=82 in other isotopic chains with larger proton numbers, and at the N=126 shell closure in doubly magic Pb208. While most standard nuclear density functional calculations struggle with a consistent explanation of these discontinuities, we demonstrate that a recently developed Fayans energy density functional provides a coherent description of the kinks at both doubly magic nuclei, Sn132 and Pb208, without sacrificing the overall performance. A multiple correlation analysis leads to the conclusion that both kinks are related to pairing and surface effects.


FAU Authors / FAU Editors

Reinhard, Paul-Gerhard Prof. Dr.
Naturwissenschaftliche Fakultät


Additional Organisation
Institut für Theoretische Physik


External institutions with authors

ELI NP Research Centre
Europäische Organisation für Kernforschung (CERN)
GSI Helmholtzzentrum für Schwerionenforschung GmbH
Institut de Physique Nucléaire Orsay
Johannes Gutenberg-Universität Mainz
Katholieke Universiteit Leuven (KUL) / Catholic University of Leuven
Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics
Michigan State University
Technische Universität Darmstadt
Technische Universität München (TUM)
The University of Liverpool
University of Manchester


How to cite

APA:
Gorges, C., Rodríguez, L.V., Balabanski, D.L., Bissell, M.L., Blaum, K., Cheal, B.,... Yordanov, D.T. (2019). Laser spectroscopy of neutron-rich tin isotopes: A discontinuity in charge radii across the N=82 shell closure. Physical Review Letters, 122(19). https://dx.doi.org/10.1103/PhysRevLett.122.192502

MLA:
Gorges, C., et al. "Laser spectroscopy of neutron-rich tin isotopes: A discontinuity in charge radii across the N=82 shell closure." Physical Review Letters 122.19 (2019).

BibTeX: 

Last updated on 2019-09-09 at 14:10