Experimental search for a heavy neutrino at a nuclear reactor
Skorokhvatov M. D., Etenko A. V.
The results of an experimental study of the reaction ve + p^n + e+in the flux of ve 's from a nuclear reactor at the Rovno nuclear power plant yield a limitation on the mixing parameter of a heavy neutrino: | UeIi\2 < 0.02 (at a 68% confidence level).