New precision measurement of the $J/\psi$- and ${\psi }^{\prime }$ -meson masses

V. M. Aulchenko, KEDR Collaboration

A new high precision measurement of the $J/\psi$- and ${\psi }^{\prime }$-meson masses has been performed at the VEPP-4M collider using the KEDR detector. The resonant depolarization method has been…