First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay
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/ Abstract
In the SND experiment at VEPP-2M e + e − collider the φ (1020) → π 0 π 0 γ decay was studied. Its branching ratio B ( φ → π 0 π 0 γ ) = (1 . 14 ± 0 . 10 ± 0 . 12) · 10 − 4 was measured. It was shown, that f 0 (980) γ mechanism dominates in this decay. Corresponding branching ratio B ( φ → f 0 γ ) = (3 . 42 ± 0 . 30 ± 0 . 36) · 10 − 4 was obtained. 12.39.Mk, 13.40.Hq, 14.40.Cs