First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay
  In the SND experiment at the VEPP-2M electron-positron collider the PHI(1020)--->PI0+PI0+GAMMA decay was studied. The branching ratio B(PHI--->PI0+PI0+GAMMA)=(1.14+-0.10+-0.12)x10^{-4} was measured. It was shown, that the F0(980)GAMMA mechanism dominates in this decay and the 4-quark model of F0(980) describes our data most consistently. 
M.N.Achasov, V.M.Aulchenko, A.V.Berdyugin, A.V.Bozhenok, A.D.Bukin,   D.A.Bukin, S.V.Burdin, T.V.Dimova, S.I.Dolinsky, V.P.D...