Search for heavy neutrinos in K+→μ+ν decays
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
The NA62 experiment recorded a large sample of K+→μ+νμ decays in 2007. A peak search has been performed in the reconstructed missing mass spectrum. In the absence of a signal, limits in the range 2×10−6 to 10−5 have been set on the squared mixing matrix element |Uμ4|2 between muon and heavy neutrino states, for heavy neutrino masses in the range 300–375 MeV/c2. The result extends the range of masses for which upper limits have been set on the value of |Uμ4|2 in previous production search experiments.
|Journal||Physics Letters B|
|Early online date||27 Jul 2017|
|Publication status||Published - 2017|
- Kaon decays, Heavy neutrinos