Search for neutrino oscillations in an experiment in the reactor of the Rovno nuclear power plant
Afonin A. I., Bogatov S. A., Borovoi A. A., Vershinskii A. G., Gavrilov S. L., Dobrynin Yu. L., Ketov S. N., Klimov Yu. V., Kopeikin V. I., Levina L. A., Machulin I. N., Mikaeliyan L. A., Nikolaev S. V., Ozerov K. V., Sinev V. V., Tolokonnikov S. V., Kheruvimov A. N.
The positron spectrum in the reaction ve + ρ —> η + e+ is measured at a distance of 18 m from the reactor. These measurements have made it possible to impose limitations on the parameters of the Pontecorvo oscillations and to substantially reduce the region allowed for them as compared with the results obtained by the French group at the Bouger reactor in 1984.