CP Violation Beyond the Standard Model and Tau Pair Production in $e^{+}{e}^{-}$ Collisions

Abstract

We show that the CP-violating dipole form factors of the tau lepton can be of the order of $\alpha /\pi$ in units of the length scale set by the inverse $Z$ boson mass. We propose a few observables which are sensitive to these form factors at LEP2 and higher e^+e^- collision energies.

11 pages LaTeX + 2 figures

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• Interference Resurrection of the $\tau$ Dipole through Quantum Tomography
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• Large Electric Dipole Moments of Heavy Neutrinos
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• Sensitivity Study of the Tau Lepton Electric Dipole Moment at the Super Tau-Charm Facility
• Suggestion for measuring the weak dipole moment of $\tau$ lepton at Z-factory
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• Linearly Polarized Photon Fusion as a Precision Probe of the Tau Lepton Dipole Moments at Lepton Colliders