Using data from the FOCUS (E831) experiment, we have searched for T violation in charm meson decays using the four-body decay channels D 0→K-K+π-π+, D+→KS0K+π -π+, and Ds+→K S0K+π-π+. The T violation asymmetry is obtained using triple-product correlations and assuming the validity of the CPT theorem. We find the asymmetry values to be A Tviol(D0)=0.010±0.057(stat.)±0.037(syst.), ATviol(D+)=0.023±0.062(stat.)±0.022(syst.), and ATviol(Ds+)=-0.036±0.067(stat.) ±0.023(syst.). Each measurement is consistent with no T violation. New measurements of the CP asymmetries for some of these decay modes are also presented.
|Original language||English (US)|
|Number of pages||10|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Sep 1 2005|
ASJC Scopus subject areas
- Nuclear and High Energy Physics