Experimental study of the decay PHI(1020)--->ETA+GAMMA in multi-photon   final state
  In the SND experiment at VEPP-2M e^+e^- collider the phi(1020) ---> eta+gamma ---> 3pi^0+gamma decay was studied. The branching ratio B(phi--->eta+gamma) = (1.246 +- 0.025 +- 0.057)% was measured. 
M.N.Achasov, S.E.Baru, A.V.Berdyugin, A.V.Bozhenok, A.D.Bukin,   D.A.Bukin, S.V.Burdin, T.V.Dimova, S.I.Dolinsky, V.P.Druzhi...