Search for the decay ω→ηe+e- in η→π+π-π0 decay mode with the CMD-3 detector

A set of selection criteria has been elaborated using Monte-Carlo modeling simulation (MC) to extract the ω→ηe+e- decay events. Using a data sample of 6 pb-1 collected in 3 central points in the energy range close to ω-meson invariant mass the upper limit on the branching ratio of decay has been estimated: B(ω→ηe+e-) < 5 ∙ 10-6, which does not contradict to the Vector Dominance Model (VDM) prediction: (2.0 – 4.8) ∙ 10-6.

Keywords

Conversion rare decay, Vector Dominance Model, VDM, light vector meson decay, Conversion rare decay, Vector Dominance Model, VDM, light vector meson decay, VDM, light vector meson decay, rare decay

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