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Measurement of the Mass of the Electron Neutrino Using Electron Capture in 163Ho

  • S. Yasumi
  • M. Ando
  • H. Maezawa
  • H. Kitamura
  • T. Ohta
  • F. Ochiai
  • A. Mikuni
  • M. Maruyama
  • M. Fujioka
  • K. Ishii
  • T. Shinozuka
  • K. Sera
  • T. Omori
  • G. Izawa
  • M. Yagi
  • K. Masumoto
  • K. Shima
  • T. Mukoyama
  • Y. Inagaki
  • I. Sugai
  • A. Masuda
  • O. Kawakami
Conference paper

Abstract

The mass of the electron neutrino has been recently investigated using electron capturing isotopes including 163Ho [1,2,3], 193pt [4] and so on. There are two ways to measure mνe; one proposed by A. De Rújula [5] of CERN which is essentially based on three body phase space in radiative electron capture process, and another that utilizes the mνe-dependence of. the electron capture rate, which was discussed by Bennett et al. [6]. Considerations of the intensity of internal bremsstrahlung at electron capture in a 163Ho source, indicate that the first approach is very difficult [7,8]. Therefore, for the time being, we decided to pursue the second approach [9].

Keywords

Electron Capture Photon Spectrum Electron Neutrino Nuclear Matrix Element Electron Capture Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • S. Yasumi
    • 1
    • 2
  • M. Ando
    • 2
  • H. Maezawa
    • 2
  • H. Kitamura
    • 2
  • T. Ohta
    • 2
  • F. Ochiai
    • 2
  • A. Mikuni
    • 2
  • M. Maruyama
    • 3
  • M. Fujioka
    • 4
  • K. Ishii
    • 4
  • T. Shinozuka
    • 4
  • K. Sera
    • 4
  • T. Omori
    • 4
  • G. Izawa
    • 4
  • M. Yagi
    • 4
  • K. Masumoto
    • 4
  • K. Shima
    • 5
  • T. Mukoyama
    • 6
  • Y. Inagaki
    • 6
  • I. Sugai
    • 7
  • A. Masuda
    • 8
  • O. Kawakami
    • 8
  1. 1.Teikyo UniversityHachioji, TokyoJapan
  2. 2.National Laboratory for High Energy PhysicsKEKIbaraki-kenJapan
  3. 3.Osaka UniversityToyonaka, OsakaJapan
  4. 4.Tohoku UniversitySendaiJapan
  5. 5.University of TsukubaNiihari, IbarakiJapan
  6. 6.Kyoto UniversityKyotoJapan
  7. 7.Institute for Nuclear StudyUniversity of TokyoTanashi, TokyoJapan
  8. 8.University of TokyoTokyoJapan

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