Rho-Omega Mixing and Direct CP Violation in Hadronic B-Decays

Abstract

The extraction of CKM-matrix-element information from hadronic B-decays generally suffers from discrete ambiguities, hampering the diagnosis of physics beyond the Standard Model. We show that a measurement of the rate asymmetry, which is CP-violating, in $B^{\pm }\to {\rho }^{\pm }{\rho }^0(\omega )\to {\rho }^{\pm }{\pi }^{+}{\pi }^{-}$, where the invariant mass of the ${\pi }^{+}{\pi }^{-}$ pair is in the vicinity of the $\omega$ resonance, can remove the mod($\pi$) uncertainty in $\alpha \equiv arg[-V_{td}{V}_{tb}^{\ast }/(V_{ud}{V}_{ub}^{\ast })]$ present in standard analyses.

Comments: 9 pages, REVTeX, 1 ps figure, major style changes, results unchanged