The search for CP-violating K_Sto3pi^0 decay was performed with SND detector at VEPP-2M e^+e^- collider. The total amount of data corresponding to 7 million produced K_S mesons was analyzed. No candidate events were found, giving an upper limit of the decay branching ratio: Br(K_Sto3pi^0) < 1.4cdot10^{-5} at 90% confidence level.
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