Direct CP violation in $\tau^\pm\rightarrow K^\pm \rho^0 (\omega)\nu_\tau \rightarrow K^\pm \pi^+\pi^-\nu_\tau $

We study the direct CP violation in the $\tau^\pm\rightarrow K^\pm \rho^0 (\omega)\nu_\tau \rightarrow K^\pm \pi^+\pi^-\nu_\tau$ decay process in the Standard Model. An interesting mechanism involving the charge symmetry violating mixing between $ρ^{0}$ and $ω$ 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.

Direct CP violation in $τ^{\pm} \to K^{\pm} ρ^{0} (ω) ν_{τ} \to K^{\pm} π^{+} π^{-} ν_{τ}$

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Direct CP violation in $τ^{\pm} \to K^{\pm} ρ^{0} (ω) ν_{τ} \to K^{\pm} π^{+} π^{-} ν_{τ}$

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Direct CP violation in τ±→K±ρ0(ω)ντ→K±π+π−νττ±→K±ρ0(ω)ντ​→K±π+π−ντ​

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Direct CP violation in τ±→K±ρ0(ω)ντ→K±π+π−νττ±→K±ρ0(ω)ντ​→K±π+π−ντ​

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Direct CP violation in $τ^{\pm} \to K^{\pm} ρ^{0} (ω) ν_{τ} \to K^{\pm} π^{+} π^{-} ν_{τ}$

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Direct CP violation in $τ^{\pm} \to K^{\pm} ρ^{0} (ω) ν_{τ} \to K^{\pm} π^{+} π^{-} ν_{τ}$

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AI智能校验