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Multiple-resonance phenomenon in neutrinoless double-electron capture

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

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Goncharov,  Mikhail
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Physikalisches Institut, Ruprecht-Karls-Universitätt;

Novikov,  Yuri N.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Petersburg Nuclear Physics Institute, Gatchina;
Department of Physics, St. Petersburg State University;

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Zitation

Eliseev, S., Goncharov, M., Blaum, K., Block, M., Droese, C., Herfurth, F., et al. (2011). Multiple-resonance phenomenon in neutrinoless double-electron capture. Physical Review C, 84(01): 012501(R), pp. 1-4. doi:10.1103/PhysRevC.84.012501.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0012-162A-7
Zusammenfassung
A superposition of multiple resonance states in neutrinoless double-electron capture in 156Dy has been discovered. Penning-trap mass spectrometry has been used for atomic-mass-difference measurements and careful calculations of electron wave functions and double-hole binding energies have been performed to determine the resonance-enhancement factors. Transitions to four nuclear excited states in the daughter nuclide 156Gd have been identified as resonantly enhanced, including one with a full resonant enhancement, within the uncertainty of 100 eV. This phenomenon is unique in that it can be used to probe the mechanisms of neutrinoless processes.