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Journal Article

Q value and half-life of double-electron capture in 184Os

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons31062

Smorra,  Christian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Institut für Kernchemie, Johannes Gutenberg-Universität;
Fakultät für Physik und Astronomie, Ruprecht-Karls-Universität;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30303

Beyer,  Thomas
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Fakultät für Physik und Astronomie, Ruprecht-Karls-Universität;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30312

Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Fakultät für Physik und Astronomie, Ruprecht-Karls-Universität;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30445

Eliseev,  Sergey
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30835

Nagy,  Szilard
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
GSI Helmholtzzentrum für Schwerionenforschung;

Renisch ,  Dennis
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Institut für Kernchemie, Johannes Gutenberg-Universität;

Fulltext (public)

1209.5174v1
(Preprint), 467KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Smorra, C., Rodríguez, T., Beyer, T., Blaum, K., Block, M., Düllmann, C., et al. (2012). Q value and half-life of double-electron capture in 184Os. Physical Review C, 86(4): 044604, pp. 1-5. doi:10.1103/PhysRevC.86.044604.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-F0B9-2
Abstract
184Os has been excluded as a promising candidate for the search of neutrinoless double-electron capture. High-precision mass measurements with the Penning-trap mass spectrometer TRIGA-TRAP result in a marginal resonant enhancement with Δ=−8.89(58) keV excess energy to the 1322.152(22) keV 0+ excited state in 184W. State-of-the-art energy density functional calculations are applied for the evaluation of the nuclear matrix elements to the excited states predicting a strong suppression due to the large deformation of mother and daughter states. The half-life of the transition exceeds T1/2> (184Os)≥1.3×1029 yr for an effective neutrino mass of 1 eV.