Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2012-03-29
Physics
High Energy Physics
High Energy Physics - Experiment
Scientific paper
We observe evidence for CP violation in the decay $D^+\rightarrow K^0_S\pi^+$ using a data sample with an integrated luminosity of 977 fb$^{-1}$ collected by the Belle detector at the KEKB $e^+e^-$ asymmetric-energy collider. The CP asymmetry in the decay is measured to be $(-0.363\pm0.094\pm0.067)%$, which is 3.2 standard deviations away from zero, and is consistent with the expected CP violation due to the neutral kaon in the final state.
Won for the Belle Collaboration E.
~Ko ~R. B.
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