Measurement of the ratio B (D 0 → π + π - π 0 ) / B (D 0 → K - π + π 0 ) and the time-integrated CP asymmetry in D 0 → π + π - π 0
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
662
Journal Issue
2
Pages
102-110
Date Issued
2008
Author(s)
Arinstein, K. et al. (Belle Collaboration)
Abstract
We report a high-statistics measurement of the relative branching fraction B(D0->pi+pi-pi0)/B(D0->K-pi+pi0) using a 532 fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The measured value of the relative branching fraction is B(D0->pi+pi-pi0)/B(D0->K-pi+pi0) = (10.12 +/- 0.04(stat) +/- 0.18(syst))x10^{-2} which has an accuracy comparable to the world average. We also present a measurement of the time-integrated CP asymmetry in D0->pi+pi-pi0 decay. The result, A_{CP} = (0.43 +/- 1.30)%, shows no significant CP violation.
Type
journal article