Shape coexistence in 187Au studied by laser spectroscopy

Research output: Contribution to journalArticle

Authors

  • Anatoly (A.E.) Barzakh
  • Dimitar Atanasov
  • Andrei N. Andreyev
  • Numa A. Althubiti
  • Boris Andel
  • Stanislav Antalic
  • Klaus Blaum
  • Thomas Elias Cocolios
  • Cubiss James G.
  • Piet Van Duppen
  • Thomas Day Goodacre
  • Gregory James Farooq-Smith
  • Dmitry V. Fedorov
  • Valentin N. Fedosseev
  • Daniel A. Fink
  • Liam Paul Gaffney
  • Mark Huyse
  • Nobuaki Imai
  • S. Kreim
  • David Lunney
  • Kara M Lynch
  • Vladimir Manea
  • Bruce A Marsh
  • P.L. Molkanov
  • Dennis Neidherr
  • M. Rosenbusch
  • Ralf Erik Rossel
  • Sebastian Rothe
  • Lutz Schweikhard
  • Maxim D. Seliverstov
  • Simon Sels
  • Celine Van Beveren
  • Verstraelen Elise
  • A. Welker
  • Frank Wienholtz
  • R.N. Wolf
  • Kai Zuber

Institutes & Expert groups

  • NRCKI - National research Center Kurchatov Institute
  • PNPI - Petersburg Nuclear Physics Institute
  • IPP - Max-Planck-Institut für Plasmaphysik
  • University of York
  • ASRC - Advanced Science Research Center - JAEA
  • University of Manchester
  • Comenius University Bratislava
  • CERN - Conseil Européen pour la Recherche Nucléaire
  • KUL - Katholieke Universiteit Leuven
  • University of Liverpool
  • KEK - High Energy Accelerator Research Organisation
  • ISS - Institut für Strahlenschutz
  • University Paris-Sud
  • GSI - Helmholtzzentrum für Schwerionenforschung GmbH
  • Ernst-Moritz-Arndt-Universität Greifswald - Institut für Physik
  • University of Liverpool - Oliver Lodge Laboratory
  • TU - Technische Universität Dresden - Thomas Wöhling

Documents & links

Abstract

Hyperfine-structure parameters and isotope shift of the 9/2− isomeric state in 187Au relative to 197Au for the 267.6-nm atomic transition have been measured for the first time using the in-source resonance-ionization spectroscopy technique. The magnetic dipole moment and change in the mean-square charge radius for this 9/2− isomer have been deduced. The observed large isomer shift relative to the 1/2+ ground state in 187Au confirms the occurrence of the shape coexistence in 187Au proposed earlier from the analysis of the nuclear spectroscopic data and particle plus triaxial rotor calculations. The analysis of the magnetic moment supports the previously proposed 9/2−, 1/2−[541] assignment at moderate prolate deformation for 187 aUm.

Details

Original languageEnglish
Article number064321
Pages (from-to)1-7
Number of pages7
JournalPhysical Review C
Volume101
DOIs
Publication statusPublished - 25 Jun 2020

Keywords

  • Fine & hyperfine structure, Isomer decays, Nuclear charge distribution, Nuclear structure, Spectroscopic factors, Electromagnetic moments

ID: 6882374