Study of the ρ, ω, ϕ→ηγ→7γ decays with an SND detector on a VEPP-2M collider

The e+e−→ηγ→7γ process was studied in the energy range 2E=600–1060 MeV with an SND detector on a VEPP-2M e+e− collider. The decay branching ratios B(φ→ηγ)=(1.353±0.011±0.052)×10−2, B(ω→ηγ)=(4.62±0.71±0.18)×10−4, and B(ρ→ηγ)=(2.73±0.31±0.15)×10−4 were measured.