Experimental Study of ! 0 0 and ! ! 0 0 Decays

The e + e − ! � 0 � 0 process was studied in the SND experiment at VEPP-2M e + e − collider in the energy region 0.60–0.97 GeV. From the analysis of the energy dependence of measured cross section the branching ratios B(! ! � 0 � 0 ) = (6.6 +1.4 −0.8 ± 0.6) · 10 −5 and B(� ! � 0 � 0 ) = (4.1 +1.0 −0.9 ± 0.3) · 10 −5 were obtained.