EPJ Web of Conferences (Jan 2015)

Radioactive decays of highly-charged ions

  • Gao B. S.,
  • Najafi M. A.,
  • Atanasov D. R.,
  • Blaum K.,
  • Bosch F.,
  • Brandau C.,
  • Chen X. C.,
  • Dillmann I.,
  • Dimopoulou Ch.,
  • Faestermann Th.,
  • Geissel H.,
  • Gernhäuser R.,
  • Hillenbrand P.-M.,
  • Kovalenko O.,
  • Kozhuharov C.,
  • Litvinov S. A.,
  • Litvinov Yu. A.,
  • Maier L.,
  • Nolden F.,
  • Piotrowski J.,
  • Sanjari M. S.,
  • Scheidenberger C.,
  • Spillmann U.,
  • Steck M.,
  • Stöhlker Th.,
  • Trageser Ch.,
  • Tu X. L.,
  • Weick H.,
  • Winckler N.,
  • Xu H. S.,
  • Yamaguchi T.,
  • Yan X. L.,
  • Zhang Y. H.,
  • Zhou X. H.

DOI
https://doi.org/10.1051/epjconf/20159305003
Journal volume & issue
Vol. 93
p. 05003

Abstract

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Access to stored and cooled highly-charged radionuclides offers unprecedented opportunities to perform high-precision investigations of their decays. Since the few-electron ions, e.g. hydrogen- or helium-like ions, are quantum mechanical systems with clear electronic ground state configurations, the decay studies of such ions are performed under well-defined conditions and allow for addressing fundamental aspects of the decay process. Presented here is a compact review of the relevant experiments conducted at the Experimental Storage Ring ESR of GSI. A particular emphasis is given to the investigations of the two-body beta decay, namely the bound-state β-decay and its time-mirrored counterpart, orbital electron-capture.