Laser-assisted nuclear decay spectroscopy of 176,177,179Au

Research output: Contribution to journalArticlepeer-review

Authors

  • R.D. Harding
  • Andrei N. Andreyev
  • Anatoly (A.E.) Barzakh
  • Cubiss James G.
  • Piet Van Duppen
  • Numa A. Althubiti
  • Boris Andel
  • Stanislav Antalic
  • Thomas Elias Cocolios
  • Thomas Day Goodacre
  • Kristof Dockx
  • Gregory James Farooq-Smith
  • Dmitry V. Fedorov
  • Valentin N. Fedosseev
  • Daniel A. Fink
  • Liam Paul Gaffney
  • Lars Ghys

Institutes & Expert groups

  • KUL - Katholieke Universiteit Leuven
  • CERN - Conseil Européen pour la Recherche Nucléaire
  • University of York
  • ASRC - Advanced Science Research Center - JAEA
  • PNPI - Petersburg Nuclear Physics Institute
  • UNIMAN - The University of Manchester
  • Comenius University Bratislava
  • NRCKI - National research Center Kurchatov Institute
  • University of Liverpool

Documents & links

Abstract

A study of the laser-ionized and mass-separated neutron-deficient isotopes 176,177,179Au was performed using the Resonance Ionization Laser Ion Source and the Windmill detection setup at ISOLDE, CERN. New and improved data on complex fine-structure α decays of the three isotopes were deduced, providing insight into the low-lying levels in the daughter nuclei 172,173,175Ir. New information on the properties of β-decay daughter products 177,179Pt was also obtained. From the first in-source laser spectroscopy measurements of the hyperfine structure in the atomic 267.6-nm transition of 176Au, the nuclear magnetic moments for both high- and low-spin α-decaying states were deduced. Together with the values determined from the additivity relations, they were used to propose the most probable spins and configurations for both states. The α-decay branching ratios were determined as bα (176Auls ) = 58(5)% and bα (176Auhs ) = 29(5)%.

Details

Original languageEnglish
Article number024326
Pages (from-to)1-16
Number of pages16
JournalPhysical Review C
Volume104
DOIs
Publication statusPublished - 23 Aug 2021

Keywords

  • Alpha decay, Isomer decays, Electromagnetic transitions

ID: 7480922