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

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):, pp. 1-5. doi:10.1103/PhysRevC.86.044604.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-F0B9-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-F0BB-D
Genre: Journal Article

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1209.5174v1 (Preprint), 467KB
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Smorra, Christian1, 2, 3, Author              
Rodríguez, T.R.4, 5, Author
Beyer, Thomas1, 3, Author              
Blaum, Klaus1, 3, Author              
Block, Michael5, Author
Düllmann, Ch.E.2, 5, 6, Author
Eberhardt, Klaus2, 6, Author
Eibach, Martin2, 3, Author
Eliseev, Sergey1, Author              
Langanke, K.4, 5, 7, Author
Martínez-Pinedo, G.4, 5, Author
Nagy, Szilard1, 5, Author              
Nörtershäuser, W.2, 5, Author
Renisch , Dennis1, 2, Author
Shabaev, V.M.8, Author
Tupitsyn, I.I.8, Author
Zubova, N.A.8, Author
Affiliations:
1Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, escidoc:904548              
2Institut für Kernchemie, Johannes Gutenberg-Universität, Fritz-Strassmann-Weg 2, D-55128 Mainz, Germany, escidoc:persistent22              
3Fakultät für Physik und Astronomie, Ruprecht-Karls-Universität, Philosophenweg 12, D-69120 Heidelberg, Germany, escidoc:persistent22              
4Technische Universität Darmstadt, Institut für Kernphysik, Schlossgartenstr. 2, D-64289 Darmstadt, Germany, escidoc:persistent22              
5GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, D-64291 Darmstadt, Germany, escidoc:persistent22              
6Helmholtz-Institut Mainz, Johann-Joachim-Becher-Weg 36, D-55128 Mainz, Germany, escidoc:persistent22              
7Frankfurt Institute for Advanced Studies, Ruth-Moufang Str. 1, D-60438 Frankfurt, Germany, escidoc:persistent22              
8Department of Physics, St. Petersburg State University, 198504 St. Petersburg, Russia, escidoc:persistent22              

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 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.

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Language(s): eng - English
 Dates: 2012-10-01
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevC.86.044604
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Title: Physical Review C
Source Genre: Journal
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Publ. Info: New York, NY : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 86 (4) Sequence Number: 044604 Start / End Page: 1 - 5 Identifier: ISSN: 0556-2813
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925225009