Investigation of the e+ e- ---> omega pi0 ---> pi0 pi0 gamma reaction in the energy domain near the phi meson

The e + e − → ωπ 0 → π 0 π 0 γ process was investigated in the SND experiment at the VEPP-2M collider. A narrow energy interval near the φ -meson was scanned. The observed cross section reveals, at the level of three standard deviation, the interference effect caused by φ → π 0 π 0 γ decay. The cross-section parameters, as well as the real and imaginary parts of the φ -meson related amplitude, were measured.

13.65.+i
12.40.Vv
Electron–positron annihilation
Vector meson dominance model
Cross-section measurement
electron positron: colliding beams
electron positron: annihilation
omega(783): electroproduction
pi0: associated production
omega(783): radiative decay

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Figures(0)

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