A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ → K-K+π+, D0 → K-K+ and D0 → π-π+. We have measured the following CP asymmetry parameters: A(CP)(K-K+π+) = +0.006 ± 0.011 ± 0.005, A(CP)(K-K+) = -0.001 ± 0.022 ± 0.015 and A(CP)(π-π+) = +0.048 ± 0.039 ± 0.025 where the first error is statistical and the second error is systematic. These asymmetries are consistent with zero with smaller errors than previous measurements. (C) 2000 Elsevier Science B.V.
|Original language||English (US)|
|Number of pages||8|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Oct 19 2000|
ASJC Scopus subject areas
- Nuclear and High Energy Physics