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arXiv · 0908.3860

Measurement of the FCNC decays K+- --> pi+- l+ l- by the NA48/2 experiment at CERN

Evgueni Goudzovski
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Abstract

A sample of 7253 $K^\pm\toπ^\pm e^+e^-$ decay candidates with 1.0% background contamination has been collected by the NA48/2 experiment at the CERN SPS, which allowed a precise measurement of the form factor, the branching ratio, and the CP violating asymmetry of $K^+$ and $K^-$ decay widths was investigated. The results of the $K^\pm\toπ^\pm e^+e^-$ analysis, as well as the status of the $K^\pm\toπ^\pmμ^+μ^-$ analysis based in the same data set, are reported.

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Evgueni Goudzovski. 2009-08-26. Measurement of the FCNC decays K+- --> pi+- l+ l- by the NA48/2 experiment at CERN. https://arxiv.org/abs/0908.3860

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