Octupolar-Excitation Penning-Trap Mass Spectrometry for Q-Value Measurement of 
Double-Electron Capture in164Er

Eliseev, Sergey; Roux, Christian; Blaum, Klaus; Block, MIchael; Droese, C.; Herfurth, Frank; Krivoruchenko, M. I.; Kretzschmar, M.; Ramirez, E. Minaya; Novikov, Yuri N.; Schweikhard, utz; Shabaev, V. M.; Simkovic, F.; Tupitsyn, I. I.; Zuber, Kai; Zubova, N. A.

doi:10.1103/PhysRevLett.107.152501

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Octupolar-Excitation Penning-Trap Mass Spectrometry for Q-Value Measurement of Double-Electron Capture in ¹⁶⁴Er

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

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Roux, Christian
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;

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http://prl.aps.org/abstract/PRL/v107/i15/e152501
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Citation

Eliseev, S., Roux, C., Blaum, K., Block, M., Droese, C., Herfurth, F., et al. (2011). Octupolar-Excitation Penning-Trap Mass Spectrometry for Q-Value Measurement of Double-Electron Capture in ¹⁶⁴Er. Physical Review Letters, 107(15): 152501, pp. 1-5. doi:10.1103/PhysRevLett.107.152501.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-2F27-0

Abstract

The theory of octupolar-excitation ion-cyclotron-resonance mass spectrometry is presented which predicts an increase of up to several orders of magnitude in resolving power under certain conditions. The new method has been applied for a direct Penning-trap mass-ratio determination of the ¹⁶⁴Er-¹⁶⁴Dy mass doublet. ¹⁶⁴Er is a candidate for the search for neutrinoless double-electron capture. However, the measured Q_ϵϵ value of 25.07(12) keV results in a half-life of 10³⁰ years for a 1 eV Majorana-neutrino mass.