Probe of electromagnetic moments of the tau lepton in gamma-gamma collisions at the CLIC

TL;DR

This study explores the potential of the CLIC collider to improve experimental bounds on the electromagnetic moments of the tau lepton through gamma-gamma collision processes, providing more precise constraints on anomalous dipole moments.

Contribution

The paper presents new bounds on tau lepton electromagnetic moments derived from gamma-gamma collisions at the CLIC, demonstrating significant improvements over previous experimental limits.

Findings

95% confidence level bounds on anomalous magnetic moments.

95% confidence level bounds on electric dipole moments.

Enhanced sensitivity of CLIC to tau electromagnetic properties.

Abstract

We have investigated the electromagnetic moments of the tau lepton in $e^{+}e^{-} \rightarrow e^{+}\gamma^{*} \gamma^{*} e^{-}\rightarrow e^{+}\tau \bar{\tau}e^{-}$ process at the CLIC. We have obtained 95% confidence level bounds on the anomalous magnetic and electric dipole moments for various values of the integrated luminosity and the center of mass energy. We have shown that the $e^{+}e^{-} \rightarrow e^{+}\gamma^{*} \gamma^{*} e^{-}\rightarrow e^{+}\tau \bar{\tau}e^{-}$ process at the CLIC leads to a remarkable improvement in the existing experimental bounds on the anomalous magnetic and electric dipole moments.