Octupolar-Excitation Penning-Trap Mass Spectrometry for $Q$-Value Measurement of Double-Electron Capture in $^{164}\mathrm{Er}$

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

S. Eliseev, C. Roux, K. Blaum, M. Block, C. Droese, F. Herfurth, M. Kretzschmar, M. I. Krivoruchenko, E. Minaya Ramirez, Yu. N. Novikov, L. Schweikhard, V. M. Shabaev, F. Šimkovic, I. I. Tupitsyn, K. Zuber, and N. A. Zubova

Phys. Rev. Lett. 107, 152501 – Published 7 October 2011

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 ${}^{164}{Er} − {}^{164}{Dy}$ mass doublet. ${}^{164}{Er}$ is a candidate for the search for neutrinoless double-electron capture. However, the measured $Q_{ϵ ϵ}$ value of 25.07(12) keV results in a half-life of $10^{30}$ years for a 1 eV Majorana-neutrino mass.

Received 25 January 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.152501

Authors & Affiliations

S. Eliseev¹, C. Roux¹, K. Blaum¹, M. Block², C. Droese³, F. Herfurth², M. Kretzschmar⁴, M. I. Krivoruchenko⁵, E. Minaya Ramirez^2,6, Yu. N. Novikov⁷, L. Schweikhard³, V. M. Shabaev⁸, F. Šimkovic^9,10, I. I. Tupitsyn⁸, K. Zuber¹¹, and N. A. Zubova⁸

¹Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
²GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany
³Institut für Physik, Ernst-Moritz-Arndt-Universität, 17487 Greifswald, Germany
⁴Institut für Physik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
⁵Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia
⁶Helmholtz-Institut Mainz, Johannes Gutenberg-Universität, 55099 Mainz, Germany
⁷Petersburg Nuclear Physics Institute, Gatchina, 188300 St. Petersburg, Russia
⁸Department of Physics, St. Petersburg State University, 198504 St. Petersburg, Russia
⁹Joint Institute for Nuclear Research, 141980 Dubna, Russia
¹⁰Department of Nuclear Physics and Biophysics, Comenius University, 84248 Bratislava, Slovakia
¹¹Institut für Kern- und Teilchenphysik, Technische Universität, 01069 Dresden, Germany

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Vol. 107, Iss. 15 — 7 October 2011

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Physical Review Letters

Octupolar-Excitation Penning-Trap Mass Spectrometry for Q-Value Measurement of Double-Electron Capture in Er164

S. Eliseev, C. Roux, K. Blaum, M. Block, C. Droese, F. Herfurth, M. Kretzschmar, M. I. Krivoruchenko, E. Minaya Ramirez, Yu. N. Novikov, L. Schweikhard, V. M. Shabaev, F. Šimkovic, I. I. Tupitsyn, K. Zuber, and N. A. Zubova

Phys. Rev. Lett. 107, 152501 – Published 7 October 2011

Abstract

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