Probing CP Violation in ${\tau }^{-}\to \nu (K\pi /K2\pi /3K/K3\pi {)}^{-}$ Decays

Abstract

It had been suggested to probe CP violation in τ \rightarrow νKπ decays with K0 -K ^{-}0 oscillation to produce ACP(τ- \rightarrow νKSπ-) = (0.36\pm0.01)%. BaBar has found ACP(τ- \rightarrow νKSπ-[\geq π0]) = (-0.36 \pm 0.23 \pm 0.11)% - i.e., 2.8 sigma difference with SM prediction. It is discussed, why one needs to probe ACP(τ \rightarrow νKπ), ACP(τ \rightarrow νK2π) and ACP(τ \rightarrow νK3π) separately to establish the existence of New Dynamics and its features. It should be possible at SuperB & Super-Belle experiments.

arXiv comment8 pages, no figures

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• Observation of electron-antineutrino disappearance at Daya Bay
• Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment
• CP Violation in τ->νπK_S and D->πK_S: The Importance of K_S-K_L Interference
• A "Known" CP Asymmetry in $\tau$ Decays
• Search for CP Violation in the Decay tau- -> pi- K^0_S (>= 0 pi0) nu_tau
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Cited by in corpus (2)

• Second Generation of 'Miranda Procedure' for CP Violation in Dalitz Studies of B (\& D \& τ) Decays
• CP asymmetry in $\tau \to K_S\pi {\nu }_{\tau }$ decays within the Standard Model and beyond