Probing electromagnetic moments of the tau lepton in PbPb collisions at the FCC-hh

TL;DR

This paper investigates the potential to measure electromagnetic moments of the tau lepton in lead-lead collisions at the FCC-hh, providing sensitivity limits and comparisons with future collider bounds.

Contribution

It introduces a novel analysis of tau lepton electromagnetic moments in heavy-ion collisions at the FCC-hh, establishing new sensitivity limits and comparison benchmarks.

Findings

95% C.L. exclusion limits on tau magnetic and electric dipole moments

Sensitivity limits at 3σ and 5σ confidence levels

Comparison with bounds from other future colliders

Abstract

A production of a pair of tau leptons in PbPb collisions at the FCC-hh collider is examined. The 95\% C.L. exclusion limits, as well as 3$\sigma$ and 5$\sigma$ sensitivity limits on the anomaly magnetic moment of the tau lepton $a_\tau$ and its electric dipole moment $d_\tau$ are obtained. A comparison with bounds on $a_\tau$ and $d_\tau$ for other future colliders are given.