Abstract
We have searched for CP violation in the decays D0→KS0P0 where P0 denotes a neutral pseudoscalar meson that is either a π0, η, or η′ using KEKB asymmetric-energy e+e− collision data corresponding to an integrated luminosity of 791 fb−1 collected with the Belle detector. No evidence of significant CP violation is observed. We report the most precise CP asymmetry measurement in the decay D0→KS0π0 to date: ACPD0→KS0π0=(−0.28±0.19±0.10)%. We also report the first measurements of CP asymmetries in the decays D0→KS0η and D0→KS0η′: ACPD0→KS0η=(+0.54±0.51±0.16)% and ACPD0→KS0η′=(+0.98±0.67±0.14)%, respectively.Received 17 January 2011DOI:https://doi.org/10.1103/PhysRevLett.106.211801© 2011 American Physical Society
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