Direct CP violation in B meson decays via ϱ-ω interference

We investigate B±,0 → ϱ0(ω)h±,0, where ϱ0(ω) decays to π+π− and h is any hadronic final state, such as π or K. We find large direct CP asymmetry in B meson decays via ϱ-ω interference. A possible method to determine weak phases, such as φ2 = arg((VudVub∗)(VtdVtb∗)) and φ3 = arg((VusVub∗)(VtsVtb∗)), is also discussed. We show the feasibility to detect the CP asymmetries in these channels by assuming an asymmetric e+e− collider experiment. 109 BB events are required for the detection of this effect.