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Half-life measurements of stored fully ionized and hydrogen-like 122 I ions

  • D. R. Atanasov
  • N. WincklerEmail author
  • D. Balabanski
  • L. Batist
  • F. Bosch
  • D. Boutin
  • C. Brandau
  • C. Dimopoulou
  • H. G. Essel
  • T. Faestermann
  • H. Geissel
  • I. Hachiuma
  • S. Hess
  • T. Izumikawa
  • P. Kienle
  • R. Knöbel
  • C. Kozhuharov
  • J. Kurcewicz
  • N. Kuzminchuk
  • S. A. Litvinov
  • Yu. A. Litvinov
  • R. S. Mao
  • R. Märtin
  • M. Mazzocco
  • G. Münzenberg
  • K. Namihira
  • F. Nolden
  • T. Ohtsubo
  • Z. Patyk
  • R. Reuschl
  • M. S. Sanjari
  • C. Scheidenberger
  • D. Shubina
  • U. Spillmann
  • M. Steck
  • Th. Stöhlker
  • B. Sun
  • T. Suzuki
  • M. Trassinelli
  • I. I. Tupitsyn
  • H. Weick
  • M. Winkler
  • D. F. A. Winters
  • T. Yamaguchi
Open Access
Regular Article - Experimental Physics

Abstract

The half-lives of fully ionized and hydrogen-like (H-like) 122I ions have been measured in a heavy-ion storage ring. The \( \beta^{+}_{}\) -decay constants for both charge states and the electron capture (EC) decay constant of H-like ions have been determined. The EC-decay constant in H-like 122I ions \(\ensuremath \lambda^{\text{H-like}}_{\rm EC}=7.35(33)\cdot10^{-4}{\,\mbox{s}}^{-1}\) is, within the uncertainty, the same as the one in neutral atoms. This result is in agreement with the estimates of recent theoretical considerations on the EC-decay of few-electron ions that explicitly take into account the conservation of the total angular momentum of the nucleus plus lepton(s) system and its projections. No firm confirmation could be concluded from our results on the predicted effect that allowed Gamow-Teller transitions become forbidden if the initial and final total angular momenta are not equal.-1

Keywords

Electron Capture Decay Constant Neutral Atom Total Angular Momentum Revolution Frequency 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • D. R. Atanasov
    • 1
    • 2
  • N. Winckler
    • 1
    • 3
    Email author
  • D. Balabanski
    • 4
  • L. Batist
    • 5
  • F. Bosch
    • 1
  • D. Boutin
    • 1
    • 7
  • C. Brandau
    • 1
    • 8
  • C. Dimopoulou
    • 1
  • H. G. Essel
    • 1
  • T. Faestermann
    • 10
  • H. Geissel
    • 1
    • 9
  • I. Hachiuma
    • 12
  • S. Hess
    • 1
  • T. Izumikawa
    • 13
  • P. Kienle
    • 10
    • 11
  • R. Knöbel
    • 1
  • C. Kozhuharov
    • 1
  • J. Kurcewicz
    • 1
  • N. Kuzminchuk
    • 9
  • S. A. Litvinov
    • 1
  • Yu. A. Litvinov
    • 1
    • 3
  • R. S. Mao
    • 14
  • R. Märtin
    • 1
    • 15
  • M. Mazzocco
    • 1
    • 16
  • G. Münzenberg
    • 1
    • 17
  • K. Namihira
    • 12
  • F. Nolden
    • 1
  • T. Ohtsubo
    • 13
  • Z. Patyk
    • 18
  • R. Reuschl
    • 1
    • 8
  • M. S. Sanjari
    • 1
    • 20
  • C. Scheidenberger
    • 1
    • 9
  • D. Shubina
    • 1
    • 19
  • U. Spillmann
    • 1
  • M. Steck
    • 1
  • Th. Stöhlker
    • 1
    • 6
    • 15
  • B. Sun
    • 9
    • 21
  • T. Suzuki
    • 12
  • M. Trassinelli
    • 1
    • 22
  • I. I. Tupitsyn
    • 23
  • H. Weick
    • 1
  • M. Winkler
    • 1
  • D. F. A. Winters
    • 1
  • T. Yamaguchi
    • 12
  1. 1.GSI Helmholtzzentrum für SchwerionenforschungDarmstadtGermany
  2. 2.Faculty of PhysicsSt. Kliment Ohridski University of SofiaSofiaBulgaria
  3. 3.Max-Planck-Institut für KernphysikHeidelbergGermany
  4. 4.Institute for Nuclear Research and Nuclear EnergyBulgarian Academy of SciencesSofiaBulgaria
  5. 5.Petersburg Nuclear Physics InstituteGatchinaRussia
  6. 6.Ruprecht-Karls Universität HeidelbergHeidelbergGermany
  7. 7.Service de Physique Nucléaire, CEA-SaclayCedexFrance
  8. 8.ExtreMe Matter Institute EMMIGSI Helmholtzzentrum für SchwerionenforschungDarmstadtGermany
  9. 9.II. Physikalisches InstitutUniversität GießenGießenGermany
  10. 10.Physik Department E12Technische Universität MünchenGarchingGermany
  11. 11.Stefan Meyer Institut für subatomare PhysikViennaAustria
  12. 12.Department of PhysicsSaitama UniversitySaitamaJapan
  13. 13.Niigata UniversityNiigataJapan
  14. 14.Institute of Modern PhysicsChinese Academy of SciencesLanzhouPRC
  15. 15.Helmholtz-Institut JenaJenaGermany
  16. 16.Dipartimento di FisicaINFNPadovaItaly
  17. 17.Manipal Academy of Higher EducationManipalIndia
  18. 18.National Centre for Nuclear ResearchWarsawPoland
  19. 19.Physikalisches InstitutUniversität HeidelbergHeidelbergGermany
  20. 20.Goethe-Universität FrankfurtFrankfurtGermany
  21. 21.School of Physics and Nuclear Energy EngineeringBeihang UniversityBeijingPRC
  22. 22.INSP, CNRS and Université Pierre et Marie CurieParisFrance
  23. 23.St. Petersburg State UniversitySt. PetersburgRussia

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