Direct CP Violation in B-+ -> pi-+ omega, pi-+ rho0, pi0 rho-+, and in B-bar0(B0) -> pi-+ rho+- With an Enhanced Branching Ratio for pi0 rho0

Abstract

We present a novel dynamics for generating sizable CP-violating asymmetries in the decays of charged $B^\mp\to π^\mp ω, π^\mpρ^0, π^0ρ^\mp$, and in $\bar{B^0}(B^0)\toπ^\mpρ^\pm$. The dynamics for the necessary final-state interactions involves the mixing of G-parity eigenstates of the system $(\bar{D}^*D,D^*\ol{D})$ with the $G=\pm 1$ states of $πω$ and $πρ$, respectively. The dynamical effect is enhanced by the empirically large branching ratio for decays to $(\bar{D}^*D,D^*\bar{D})$. A correlated result is a markedly enhanced branching ratio for $\bar{B^0}(B^0)\toπ^0ρ^0$, which has now been observed in two experiments.