PoS - Proceedings of Science
Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Parallel: Quark and Lepton Flavor Physics
Search for CP violation and rare decays in charm sector at Belle
Y.T. Lai* and  On behalf of the BELLE Collaboration
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Published on: August 02, 2019
Using more than 920 fb$^{-1}$ data collected with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider, we report the first measurement of the $T$-odd moments in the decay $D^{0}\to K^{0}_{S}\pi^{0}\pi^{+}\pi^{-}$. We search for $CP$-violation in decays $D^{0}\to K^{0}_{S}K^{0}_{S}$ and $D^{+}\to\pi^{+}\pi^{0}$. All the results are consistent with no $CP$ violation. We also report the result from the first search for $D^{0}$ decays to invisible final states. No significant signal yield is observed and an upper limit is set on the branching fraction at 90\% confidence level.
DOI: https://doi.org/10.22323/1.340.0416
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