Direct determination of the atomic mass difference of 187Re and 187Os for 
neutrino physics and cosmochronology

Nesterenko, D.A.; Eliseev, Sergey; Blaum, Klaus; Block, M.; Chenmarev, S.; Dörr, Andreas; Droese, C.; Filianin, P.E.; Goncharov, Mikhail; Minaya Ramirez, Enrique; Novikov, Yu.N.; Schweikhard, L.; Simon, V.V.

doi:10.1103/PhysRevC.90.042501

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Direct determination of the atomic mass difference of ¹⁸⁷Re and ¹⁸⁷Os for neutrino physics and cosmochronology

MPS-Authors

Nesterenko, D.A.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Petersburg Nuclear Physics Institute, Gatchina;

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Eliseev, Sergey
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;

Chenmarev, S.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Physics Faculty of St. Petersburg State University;

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Dörr, Andreas
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

Filianin, P.E.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Physics Faculty of St. Petersburg State University;

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

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Minaya Ramirez, Enrique
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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

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http://link.aps.org/doi/10.1103/PhysRevC.90.042501
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Citation

Nesterenko, D., Eliseev, S., Blaum, K., Block, M., Chenmarev, S., Dörr, A., et al. (2014). Direct determination of the atomic mass difference of ¹⁸⁷Re and ¹⁸⁷Os for neutrino physics and cosmochronology. Physical Review C, 90(4): 042501(R). doi:10.1103/PhysRevC.90.042501.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-24FF-9

Abstract

For the first time a direct determination of the atomic mass difference of 187Re and 187Os has been performed with the Penning-trap mass spectrometer SHIPTRAP applying the novel phase-imaging ion-cyclotron-resonance technique. The obtained value of 2492(30stat)(15sys) eV is in excellent agreement with the Q values determined indirectly with microcalorimetry and thus resolves a long-standing discrepancy with older proportional counter measurements. This is essential for the determination of the neutrino mass from the β- decay of 187Re as planned in future microcalorimetric measurements. In addition, an accurate mass difference of 187Re and 187Os is also important for the assessment of 187Re for cosmochronology.