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.

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

References in corpus (3)

• CP Violation and the Role of Electroweak Penguins in Non-leptonic B Decays
• Removing Discrete Ambiguities in CP Asymmetry Measurements
• Extracting the rho-omega mixing amplitude from the pion form-factor

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