Branching ratios for the decays of Ψ(3770) and Y(10580) mesons to a pair of light hadrons

The branching ratios for the exclusive decays of the heavy quarkonia Ψ(3770) and Y(10580) to a pair of light mesons [π+π-, KK-bar, ρ(ω)π, ρ(ω)η, ρ(ω)η', K*K-bar+c.c, ρ+ρ-, and K*K-bar*] and the branching ratios for the decays Ψ(3770) → J/Ψ + P(P = π0, η) and Y(10580) → Y(1S) + P(P = π0,η,η'), which involve a heavy quarkonium in the final state, are calculated with allowance for new data on the width of the D*±(2010) meson and the mass differences between the charged and neutral beauty mesons (B±, on one hand, and B0 and B-bar0, on the other hand). The calculations are based on the model where the Okubo-Zweig-Iizuka rule is dynamically violated owing to the intermediate state DD-bar(BB-bar) in the case of the Ψ(3770) [Y(10580)] meson. The inclusive annihilation of Ψ(3770) and Y(10580) mesons to light hadrons is discussed