Direct CP violation of B meson via rho-omega interference

Abstract

We investigate $B^{\pm ,0}\to {\rho }^0(\omega )h^{\pm ,0}$, where ${\rho }^0(\omega )$ decays to ${\pi }^{+}{\pi }^{-}$ and $h$ is any hadronic final states, such as $\pi$ or $K$. We find large direct $CP$ asymmetries via $\rho -\omega$ interference. A possible determination of the weak phases, such as ${\varphi }_2=\arg ((V_{ud}{V}_{ub}^{\ast })/(V_{td}{V}_{tb}^{\ast }))$ and ${\varphi }_3=\arg ((V_{us}{V}_{ub}^{\ast })/(V_{ts}{V}_{tb}^{\ast }))$, is also discussed. We show the feasibility to detect the CP asymmetries in these channels by assuming an asymmetric $e^{+}{e}^{-}$ collider experiment. $10^9$ $B\bar{B}$ events are required for the detection of this effect.

18 pages, latex (revtex), two figures, two citations changed, available at http://bsun01.kek.jp/~enomoto/rhoomega.ps

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Cited by in corpus (24)

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• Quasi-two-body decays $B_{(s)}\to P\rho \to P\pi \pi$ in perturbative QCD approach
• Isospin-breaking effects on alpha extracted in B --> pi pi, rho rho, rho pi
• Rho-Omega Mixing and Direct CP Violation in Hadronic B-Decays
• Localized direct CP violation in $B^{\pm }\to {\rho }^0(\omega ){\pi }^{\pm }\to {\pi }^{+}{\pi }^{-}{\pi }^{\pm }$
• Enhanced Direct CP Violation in $B^{\pm }\to {\rho }^0{\pi }^{\pm }$
• Direct CP Violation in Λ_b -> n (Λ)π^+π^- Decays via ρ-ωMixing
• Direct CP Violation in $B\to {\pi }^{+}{\pi }^{-}\pi$: Determination of $\alpha$ without discrete ambiguity
• Direct CP Violation in Charmed Hadron Decays via $\rho -\omega$ Mixing
• Direct CP violation for ${\bar{B}}_s^0\to K^0{\pi }^{+}{\pi }^{-}$ decay in QCD factorization
• Direct CP Violation, Branching Ratios and Form Factors $B\to \pi$, $B\to K$ in $B$ Decays
• Direct CP violation in ${\tau }^{\pm }\to K^{\pm }{\rho }^0(\omega ){\nu }_{\tau }\to K^{\pm }{\pi }^{+}{\pi }^{-}{\nu }_{\tau }$
• Direct CP Violation in Untagged B-Meson Decays
• Effect of resonance for $CP$ asymmetry of the decay process ${\bar{B}}_s\to P{\pi }^{+}{\pi }^{-}$ in perturbative QCD
• $CP$ violation induced by the double resonance for pure annihilation decay process in Perturbative QCD
• Tri-meson-mixing of $\pi$-$\eta$-${\eta }^{\prime }$ and $\rho$-$\omega$-$\varphi$ in the light-cone quark model
• Enhanced direct CP violation in $B^{\pm ,0}\to {\pi }^{+}{\pi }^{-}{K}^{\pm ,0}$
• Direct $CP$ violation for ${\bar{B}}_s^0\to \varphi {\pi }^{+}{\pi }^{-}$ in Perturbative QCD
• $CP$ violation for $B_c^{+}\to D_{(s)}^{+}{\pi }^{+}{\pi }^{-}$ in Perturbative QCD
• Determining the phases alpha and gamma from time-dependent CP violation in B0 decays to rho(omega) + pseudoscalar
• Direct CP violation in ${\bar{B}}^0\to {\rho }^0(\omega ){\rho }^0(\omega )\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$
• Parametrizations of the Spin Density Matrix
• A model independent and rephase invariant parametrization of CP violation