Precision electron-capture energy in 202Pb and its relevance for neutrino-mass 
determination

Welker, A.; Filianin, Pavel; Althubiti, N. A. S; Atanasov, Dinko; Blaum, Klaus; Cocolios, T. E.; Eliseev, Sergey; Herfurth, F.; Kreim, Susanne Waltraud; Lunney, D.; Manea, V.; Neidherr, D.; Novikov, Yuri N.; Rosenbusch, M.; Schweikhard, L.; Wienholtz, F.; Wolf, Robert; Zuber, K.

doi:10.1140/epja/i2017-12345-y

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Precision electron-capture energy in ²⁰²Pb and its relevance for neutrino-mass determination

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Filianin, Pavel
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Petersburg Nuclear Physics Institute, 188300 Gatchina, St. Petersburg district, Russia;

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

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Kreim, Susanne Waltraud
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Novikov, Yuri N.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Petersburg Nuclear Physics Institute, 188300 Gatchina, St. Petersburg district, Russia;
Physics Faculty of St. Petersburg State University, 198904 Peterhof, Russia;

/persons/resource/persons103130

Wolf, Robert
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
ARC Centre of Excellence for Engineered Quantum Systems, The University of Sydney, Sydney, NSW 2006, Australia;

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https://link.springer.com/article/10.1140%2Fepja%2Fi2017-12345-y
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Citation

Welker, A., Filianin, P., Althubiti, N. A. S., Atanasov, D., Blaum, K., Cocolios, T. E., et al. (2017). Precision electron-capture energy in ²⁰²Pb and its relevance for neutrino-mass determination. European Physical Journal A, 53(7): 153. doi:10.1140/epja/i2017-12345-y.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-A371-4

Abstract

Within the framework of an extensive programme devoted to the search for alternative candidates for the neutrino mass determination, the atomic mass difference between ²⁰²Pb and ²⁰²Tl has been measured with the Penning trap mass spectrometer ISOLTRAP at the ISOLDE facility at CERN. The obtained value Q_EC=38.8(43) keV is three times more precise than the AME2012 value. While it will probably not lead to a replacement of ¹⁶³Ho in modern experiments on the determination of the electron-neutrino mass, the electron capture in ²⁰²Pb would however allow a determination of the electron-neutrino mass on the few-eV level using a cryogenic micro-calorimeter.