We analyze some interesting phenomenological consequences of a class of models which extend the standard model by adding new neutral fermions. Such might arise in some models inspired on the heterotic superstring which have naturally light neutrinos. In these models it is possible to have sizable flavour changing decays of the Z to charged lepton pairs which might be detectable at SLC and/or LEP. © 1987.
|Journal||Physics Letters B|
|Publication status||Published - 26 Mar 1987|