Direct CP violation in ${\tau }^{\pm }\to K^{\pm }{\rho }^0(\omega ){\nu }_{\tau }\to K^{\pm }{\pi }^{+}{\pi }^{-}{\nu }_{\tau }$

Abstract

We study the direct CP violation in the ${\tau }^{\pm }\to K^{\pm }{\rho }^0(\omega ){\nu }_{\tau }\to K^{\pm }{\pi }^{+}{\pi }^{-}{\nu }_{\tau }$ decay process in the Standard Model. An interesting mechanism involving the charge symmetry violating mixing between ${\rho }^0$ and $\omega$ is applied to enlarge the CP asymmetry. With this mechanism, the maximum differential and localized integrated CP asymmetries can reach $-(5.6_{-1.7}^{+2.9})\times 10^{-12}$ and $6.3_{-3.3}^{+2.4}\times 10^{-11}$, respectively, which still leave plenty room for CP-violating New Physics to be discovered through this process.

References in corpus (22)

• Precision Tau Physics
• A "Known" CP Asymmetry in $\tau$ Decays
• Rho-Omega Mixing and the Pion Form Factor in the Time-like Region
• Search for CP Violation in the Decay tau- -> pi- K^0_S (>= 0 pi0) nu_tau
• Analysis of rho-omega interference in the pion form-factor
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• Direct CP Violation in $B\to {\pi }^{+}{\pi }^{-}\pi$: Determination of $\alpha$ without discrete ambiguity
• CP Violation in $\tau \to 3\pi {\nu }_{\tau }$
• Direct CP Violation in Charmed Hadron Decays via $\rho -\omega$ Mixing
• CP violation in tau -> K pi pi nu_tau
• (ω, ϕ) P^- decays of tau leptons
• Search For Non-Standard Model CP/T violation At Tau-Charm Factory
• CP Violation in Hadronic tau Decays
• CP violation in semileptonic tau lepton decays
• Search for CP Violation in $\tau \to \pi {\pi }^0{\nu }_{\tau }$ Decay
• Charm Factories: Present and Future
• Nonleptonic charmless 2-body B decays in the perturbative QCD approach

Cited by in corpus (6)

• Particle-Antiparticle Mixing, CP Violation and Rare K and B Decays in a Minimal Theory of Fermion Masses
• Localized direct CP violation in $B^{\pm }\to {\rho }^0(\omega ){\pi }^{\pm }\to {\pi }^{+}{\pi }^{-}{\pi }^{\pm }$
• Study of $CP$ Violation in $B^{-}\to K^{-}{\pi }^{+}{\pi }^{-}$ and $B^{-}\to K^{-}\sigma (600)$ decays in the QCD factorization approach
• CP-odd component of the lightest neutral Higgs boson in the MSSM
• Study of $CP$ Violations in $B^{-}\to K^{-}{\pi }^{+}{\pi }^{-}$ and $B^{-}\to K^{-}{f}_0(500)$ decays in the QCD factorization approach
• Study of localized $CP$ violation in $B^{-}\to {\pi }^{-}{\pi }^{+}{\pi }^{-}$ and the branching ratio of $B^{-}\to \sigma (600){\pi }^{-}$ in the QCD factorization approach