Search for CP Violation in τ-> Kπν_τDecays

Abstract

We search and find no evidence for CP violation in tau decays into the K pi nu final state. We provide confidence limits on the imaginary part of the coupling constant Lambda, describing a relative contribution of the CP violating processes with respect to the Standard Model, to be -0.155 < Im(Lambda) < 0.047 at 90% C.L.

13 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS, submitted to PRL

References in corpus (3)

• Observation of Large CP Violation in the Neutral B Meson System
• Observation of CP violation in the B^0 meson system
• Search for CP Violation in $\tau \to \pi {\pi }^0{\nu }_{\tau }$ Decay

Cited by in corpus (20)

• Precision Tau Physics
• STCF Conceptual Design Report: Volume 1 -- Physics & Detector
• Study of tau- -> K_S pi- nu_tau decay at Belle
• Analyticity constraints on the strangeness changing vector current and applications to $\tau \to K\pi {\nu }_{\tau }$, $\tau \to K\pi \pi {\nu }_{\tau }$
• Search for CP Violation in the Decay tau- -> pi- K^0_S (>= 0 pi0) nu_tau
• A no-go theorem for non-standard explanations of the $\tau \to K_S\pi {\nu }_{\tau }$ CP asymmetry
• Search for CP violation in tau -> K^0_S pi nu_tau decays at Belle
• CP asymmetry in $\tau \to K_S\pi {\nu }_{\tau }$ decays within the Standard Model and beyond
• Can the observed CP asymmetry in tau --> K pi nu_tau be due to Non-Standard Tensor interactions?
• First determination of $f_{+}(0)|V_{us}|$ from a combined analysis of $\tau \to K\pi {\nu }_{\tau }$ decay and $\pi K$ scattering with constraints from $K_{\ell 3}$ decays
• Supersymmetry and CP violation in |ΔS|=1 tau-decays
• CP violation in tau -> K pi pi nu_tau
• CP Violation in Hadronic tau Decays
• CP violation in semileptonic tau lepton decays
• Flavor Physics at the CEPC: a General Perspective
• Is there a paradox in CP asymmetries of tau to K_{L,S} pi nu decays?
• Feasibility study of $CP$ Violation in ${\tau }^{-}\to K_S{\pi }^{-}{\nu }_{\tau }$ decays at Super Tau Charm Facility
• SUSY R parity violation and CP asymmetry in semi-leptonic tau-decays
• Violation of CP and T in semileptonic decays due to scalar interactions
• CLEO Contributions to Tau Physics