Light Scalar Neutrinos and Muon Decay

Jun, 1984
4 pages
Published in:
  • Phys.Lett.B 145 (1984) 421-424
  • Published: 1984
Report number:
  • CERN-TH-3933

Citations per year

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Abstract: (Elsevier)
We investigate the constraints which muon decay experiments impose on the existence of light scalar neutrinos. If the s-neutrino masses are small compared to the muon mass, the charged wino has to be substantially heavier than the charged W-vector boson. From the existing measurements of the decay parameters ϱ and δ we find M W ̃ /M W > 4 . This bound can be improved by almost a factor of 2 by current experiments.
  • POSTULATED PARTICLE: SNEUTRINO
  • POSTULATED PARTICLE: WINO
  • MUON: DECAY
  • DECAY: MUON
  • MASS: WINO
  • WINO: MASS
  • NUMERICAL CALCULATIONS
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