Searching for heavy sterile neutrinos in kaon decays
C. Weiland
Abstract:We present here a study of the impact of a heavy neutrino (or heavy neutral lepton) on leptonic and semileptonic kaon decays. We used a simplified model consisting of 3 light neutrinos responsible for neutrino oscillations and a heavy sterile neutrino. We found that it can lead to large deviations from the Standard Model predictions for leptonic decays, in conflict with experimental measurements of Ke2 and the lepton universality test RK . This allows to derive new constraints on the leptonic mixing for heavy … Show more
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