| We perform a measurement of direct CP violation in b → sγ, ACP, and the measurement of a difference between ACP for neutral B and charged B mesons, Δ AXsγ, using 429 fb-1 of data recorded at the ϒ(4S) resonance with the BABAR detector. B mesons are reconstructed from 16 exclusive final states. Particle identification is done using an algorithm based on Error Correcting Output Code with an exhaustive matrix. Background rejection and best candidate selection are done using two decision tree-based classifiers. We found ACP = 1.73% ± 1.93% ± 1.02%... |
