Measurement of $\varphi$(1020) meson leptonic width with CMD-2 detector at VEPP-2M Collider

The $\varphi$(1020) meson leptonic width has been determined from the combined analysis of 4 major decay modes of the resonance ($\phi\to K^+ K^-,K^0_LK^0_S,\pi^+\pi^-\pi^0,\eta\gamma$) studied with the CMD-2 detector at the VEPP-2M $e^{+}{e}^{-}$ collider. The following value has been obtained: $\mathrm{\Gamma }(\varphi \to e^{+}{e}^{-})=1.235\pm 0.006\pm 0.022$ keV. The $\varphi (1020)$ meson parameters in four main decay channels have been also recalculated: $B(\varphi \to K^{+}{K}^{-})=0.493\pm 0.003\pm 0.007$, $B(\phi\to K_LK_S) = 0.336\pm 0.002\pm 0.006$,$B(\phi\to\pi^+\pi^-\pi^0) = 0.155\pm 0.002\pm 0.005$,$B(\phi\to\eta\gamma) = 0.0138\pm 0.0002\pm 0.0002$.