Measurement of ${\Gamma }_{ee}(J/\psi )$ with KEDR detector

V. V. Anashin, V. M. Aulchenko, E. M. Baldin +79

The product of the electronic width of the $J/\psi$ meson and the branching fractions of its decay to hadrons and electrons has been measured using the KEDR detector at the VEPP-4M $e…