Rare decays of η-meson: the background of ρ- and ω- mesons

Abstract

The problem of $ρ$- and $ω$- mesons contributions to the background for $η\to π^0 e^+e^-$ decay and to the asymmetries in the decays $η\to π^+π^-π^0$ and $η\to π^+π^-γ$ is considered.

5 pages, 1 figure