Abstract
We search for violation in Cabibbo-suppressed charged meson decays by measuring the difference between the -violating asymmetries for the Cabibbo-suppressed decays and the Cabibbo-favored decays in the mass region of the resonance. Using of data collected with the Belle detector, we obtain . The measurement improves the sensitivity of previous searches by more than a factor of 5. We find no evidence for direct violation.
- Received 3 October 2011
DOI:https://doi.org/10.1103/PhysRevLett.108.071801
© 2012 American Physical Society