2024/10/30 by Kartik Deepak Bhide, Bhide, Kartik, Valérie Lang +1
Computer Science · Physics and Astronomy · Social Sciences · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #International Science and Diplomacy #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.2410.23070
openalex publication_date 2024/10/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Precise measurements of the electromagnetic dipole moments of charged leptons are powerful probes of physics beyond the Standard Model of particle physics. It is essential to study avenues for optimizing the measurement strategies for the anomalous magnetic dipole moment (AMDM) and the electric dipole moment (EDM) of the τ-lepton which have recently become accessible at the Large Hadron Collider (LHC). In this work, we study the prospects of employing optimal observables for measuring the AMDM of the τ-lepton in PbPb collisions at the LHC. The performance of optimal observables is investigated in a statistical analysis, assuming an integrated luminosity of 2.0 nb-1, approximately corresponding to the amount of data collected during PbPb collisions in Run 2 of the LHC. Improvements of sensitivity to the τ AMDM with optimal observables are obtained only for a larger phase space than studied so far, more integrated luminosity or including the determination of the helicities of the τ-leptons. Both, chances and limitations, of optimal observables for the τ AMDM determination will be important to consider in future experiments.