Abstract

Recent results on radiative K± decays from the NA48/2 experiment are reported. From the full NA48/2 data set, about a million K± → π±π0γ decays were reconstructed. Based on this sample, the first measurement of the interference between direct photon emission and inner bremsstrahlung in K± → π±π0γ decays was performed. Stringent limits on CP violation in this decay were also set. In addition, a precise measurement of the branching fraction of K± → π±γγ is presented. This measurement was based on a data sample of more than 1000 event candidates. Also the related decay K± → π±e+e−γ has first been observed. Results of the measurement of the decay rate and the decay parameter ĉ are summarized.

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