Tau Physics: Theory Overview

Abstract

The present status of some selected topics on tau physics is presented: charged-current universality tests, bounds on lepton-flavour violation, the determination of alpha_s from the inclusive tau hadronic width, the measurement of |V_{us}| through the Cabibbo-suppressed decays of the tau, and the theoretical description of the "tau -> nu_tau K pi" spectrum.

Invited talk at the 2008 International Workshop on e+e- collisions from Phi to Psi (PhiPsi08, Frascati, Italy, 7-10 April 2008)

References in corpus (44)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Hadronic Z- and tau-Decays in Order alpha_s^4
• The ratios of the light quark masses
• Branching ratios and spectral functions of tau decays: final ALEPH measurements and physics implications
• The Physics of Hadronic Tau Decays
• Measurement of the Strong Coupling Constant and the Vector and Axial-Vector Spectral Functions in Hadronic Tau Decays
• S-wave Kpi scattering in chiral perturbation theory with resonances
• Testing Supersymmetry with Lepton Flavor Violating tau and mu decays
• New Search for tau -> mu gamma and tau -> e gamma Decays at Belle
• The Standard Model prediction for R_{e/mu}^{(pi,K)}
• Renormalization group analysis of the tau-lepton decay within QCD
• Radiative corrections to K_{l3} decays
• V_us and m_s from hadronic tau decays
• Study of tau- -> K_S pi- nu_tau decay at Belle
• Scalar K pi form factor and light quark masses
• Soft SUSY Breaking Grand Unification: Leptons vs Quarks on the Flavor Playground
• Charged Lepton Flavour Violation and (g-2)_mu in the Littlest Higgs Model with T-Parity: a clear Distinction from Supersymmetry
• Higgs-Mediated tau --> mu and tau --> e transitions in II Higgs doublet Model and Supersymmetry
• Strange Quark Mass Determination from Cabibbo-Suppressed Tau Decays
• Lepton flavour violating semileptonic tau decays in constrained MSSM-seesaw scenarios
• Impact of ${\theta }_{13}$ on Lepton Flavour Violating processes within SUSY Seesaw
• Exclusive branching fraction measurements of semileptonic tau decays into three charged hadrons, ${\tau }^{-}\to \varphi {\pi }^{-}{\nu }_{\tau }$ and ${\tau }^{-}\to \varphi K^{-}{\nu }_{\tau }$
• Spectral distribution for the decay tau -> nu_tau K pi
• ${\alpha }_s(m_Z)$ from tau decays with matching conditions at three loops
• Strange Quark Mass from the Invariant Mass Distribution of Cabibbo-Suppressed Tau Decays
• The Strange Quark Mass From Flavor Breaking in Hadronic Tau Decays
• Grand Unification and the Principle of Minimal Flavor Violation
• Strange Quark Mass from Tau Lepton Decays with O(alpha_s^3) Accuracy
• CP violation and Leptogenesis in models with Minimal Lepton Flavour Violation
• Improved Measurement of the Positive Muon Lifetime and Determination of the Fermi Constant
• Determination of the strange quark mass from Cabibbo-suppressed tau decays with resummed perturbation theory in an effective scheme
• Determining the Strange Quark Mass in Cabibbo Suppressed Tau Lepton Decays
• Measurement of the mass of the $\tau$-lepton and an upper limit on the mass difference between ${\tau }^{+}$ and ${\tau }^{-}$
• Measurement of the Fermi Constant by FAST
• Problems With Extracting $m_s$ from Flavor Breaking in Hadronic $\tau$ Decays
• Search for Lepton Flavor Violating Decays τ^\pm \to l^\pmω(l = e, μ)
• QCD Predictions for the Tau Hadronic Width: Determination of alpha_s(M_τ^2)
• E+ E- -> Tau+ Tau- at the Threshold and Beyond
• The onset of e^+e^- -> tau^+ tau^- at threshold revisited
• V_us From Hadronin Tau Decays
• The NNLO tau+tau- Production Cross Section Close to Threshold
• V_us From Hadronic Tau Decays
• Theoretical overview on tau physics

Cited by in corpus (19)

• Yukawa Alignment in the Two-Higgs-Doublet Model
• Charged-Higgs phenomenology in the Aligned two-Higgs-doublet model
• The strong coupling and its running to four loops in a minimal MOM scheme
• One meson radiative tau decays
• Determination of the Chiral Couplings L_10 and C_87 from Semileptonic Tau Decays
• Can scalar leptoquarks explain the f_{D_s} puzzle?
• Resonance Chiral Lagrangian analysis of ${\tau }^{-}\to {\eta }^{(\prime )}{\pi }^{-}{\pi }^0{\nu }_{\tau }$ decays
• Violation of Quark-Hadron Duality and Spectral Chiral Moments in QCD
• Fourth Lepton Family is Natural in Technicolor
• U(2)^5 flavor symmetry and lepton universality violation in W -> tau nu_tau
• A Mixed Tau-Electroproduction Sum Rule for V_us
• Status of the Hadronic tau Decay Determination of |V_{us}|
• A critical look at V_us determinations from hadronic tau decay data
• Hadronic currents for ${\tau }^{-}\to {\pi }^{-}{\pi }^0{\nu }_{\tau }$ and other decays of interest in TAUOLA
• Hadronic matrix elements for TAUOLA: 3 pi and KKpi channels
• Neutrino masses from new generations
• Recent Progress on Tau Lepton Physics
• ${\tau }^{-}\to {\pi }^{-}\gamma {\nu }_{\tau }$ as a source of background on the Lepton Flavour Violating decay ${\tau }^{-}\to {\mu }^{-}\gamma$
• Hadronic and radiative decays of the tau lepton