TAU-PAIR PRODUCTION VIA PHOTON-PHOTON COLLISIONS AT LEP

Abstract

We point out that the cross-section for the process $e^{+}{e}^{-}\to e^{+}{e}^{-}{\tau }^{+}{\tau }^{-}$ at LEP is large enough to allow for a study of the anomalous electromagnetic couplings of the $\tau$ lepton. We show that the present bounds on the magnetic dipole moment can be improved and that competitive bounds can be obtained for the electric dipole moment using the data taken from 1992 to 1994. Finally, we briefly discuss the improvements that can be obtained at LEP II.

arXiv comment9 pages, latex, 2 figures

References in corpus (2)

• Constraints on Fermion Magnetic and Electric Moments from LEP-I
• Bounds on Radii and Magnetic Dipole Moments of Quarks and Leptons from LEP, SLC and HERA

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