Recent results from NA48/2

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Cristina Morales, on behalf and the NA. Recent results from NA48/2[J]. Chinese Physics C, 2010, 34(6): 749-752. doi: 10.1088/1674-1137/34/6/023
Cristina Morales, on behalf and the NA. Recent results from NA48/2[J]. Chinese Physics C, 2010, 34(6): 749-752.  doi: 10.1088/1674-1137/34/6/023 shu
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Received: 2010-01-25
Revised: 1900-01-01
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Recent results from NA48/2

    Corresponding author: Cristina Morales,
  • Institut für Physik, Universität Mainz, Germany

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±π0e+eγ has first been observed. Results of the measurement of the decay rate and the decay parameter c are summarized.

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