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JETP Letters

, Volume 108, Issue 8, pp 499–503 | Cite as

Search for a Neutrino with a Mass of 0.01–1.0 MeV in Beta Decays of 144Ce–144Pr Nuclei

  • A. V. DerbinEmail author
  • I. S. Drachnev
  • I. S. Lomskaya
  • V. N. Muratova
  • N. V. Pilipenko
  • D. A. Semenov
  • L. M. Tukkhonen
  • E. V. Unzhakov
  • A. Kh. Khusainov
Fields, Particles, and Nuclei
  • 10 Downloads

Abstract

Spectra of electrons from beta decays of 144Ce–144Pr nuclei have been measured and analyzed in order to find a contribution from a heavy neutrino. For the neutrino with the mass mνH in the interval of 150–350 keV, a new upper bound |UeH|2 ≤ (2−5) × 10−3 at 90% C.L. has been found for the mixing parameter.

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • A. V. Derbin
    • 1
    Email author
  • I. S. Drachnev
    • 1
  • I. S. Lomskaya
    • 1
  • V. N. Muratova
    • 1
  • N. V. Pilipenko
    • 1
  • D. A. Semenov
    • 1
  • L. M. Tukkhonen
    • 1
  • E. V. Unzhakov
    • 1
  • A. Kh. Khusainov
    • 1
  1. 1.Petersburg Nuclear Physics InstituteNational Research Center Kurchatov InstituteGatchinaRussia

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