Observation of K ^{+ + 0 0} decay

The K (+) -> pi (+) pi( 0) pi (0) gamma decay is observed by the OKA collaboration. About 60 events of the decay observed with signal:noise approximate to 1. The branching ratio obtained by nor-malization to K (+) -> pi (+) pi( 0) pi (0) gamma is measured to be (3.7 +/- 0.9(stat)+/- 0.3(syst))x10(-6)for E-gamma(& lowast;)>10 MeV. The branching ratio,gamma energy spectrum and angular distribution are consistent with ChPT prediction