New constraints on heavy neutral leptons from Super-Kamiokande data

  title={New constraints on heavy neutral leptons from Super-Kamiokande data},
  author={P. Coloma and P. Hern'andez and V. Mu{\~n}oz and I. Shoemaker},
  journal={The European Physical Journal C},
  • P. Coloma, P. Hern'andez, +1 author I. Shoemaker
  • Published 2019
  • Physics
  • The European Physical Journal C
  • Heavy neutral leptons are predicted in many extensions of the Standard Model with massive neutrinos. If kinematically accessible, they can be copiously produced from kaon and pion decays in atmospheric showers, and subsequently decay inside large neutrino detectors. We perform a search for these long-lived particles using Super-Kamiokande multi-GeV neutrino data and derive stringent limits on the mixing with electron, muon and tau neutrinos as a function of the long-lived particle mass. We also… CONTINUE READING

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