Possibility of Determining $\tau$ Lepton Electromagnetic Moments in ${\gamma\gamma \to \tau^{+}\tau^{-}}$ Process at the CERN-LHC

TL;DR

This paper explores how the LHC can measure the electromagnetic moments of the tau lepton through photon-photon interactions, providing significantly improved constraints over previous experiments.

Contribution

It demonstrates the potential of the LHC to precisely determine tau lepton electromagnetic moments via the gamma-gamma to tau pair process, surpassing LEP sensitivity.

Findings

Improved constraints on tau anomalous magnetic moment.

Enhanced limits on tau electric dipole moment.

Feasibility of electromagnetic moment measurement at LHC.

Abstract

Potential of the LHC to determine the electromagnetic couplings of the $\tau$ lepton is discussed via the process ${\gamma\gamma \to \tau^{+}\tau}^{-}$. Highly improved constraints of the anomalous magnetic and electric dipole moments have been obtained compared to the LEP sensitivity.