Probing $τ$ lepton dipole moments at future Muon Colliders

Fuente: arXiv
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Main Author: Wang, ZeQiang
Format: Preprint
Published: 2024
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author Wang, ZeQiang
author_facet Wang, ZeQiang
contents The anomalous magnetic moments of leptons represent excellent probes of the Standard Model and therefore also of possible new physics effects. In particular, the persisting hint of new physics in the muon $g$-2 motivates the investigation of similar effects also in the other leptonic dipoles. In this work, we examine the new physics sensitivity of the tau $g$-2 at future high-energy Muon Collider. We show that these facilities can access a number of processes like the Drell-Yan processes $μ^+μ^- \to τ^+τ^-(h)$, or vector-boson-fusion processes such as $μ^+μ^- \to μ^+μ^-τ^+τ^-$ and $μ^+μ^-\to ν_μ\barν_μτ^+τ^-$ those can probe the tau $g$-2 at the level of $\mathcal{O}(10^{-5}-10^{-4})$, a resolution that is orders of magnitude better than the current bounds.
format Preprint
id arxiv_https___arxiv_org_abs_2410_12663
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Probing $τ$ lepton dipole moments at future Muon Colliders
Wang, ZeQiang
High Energy Physics - Phenomenology
The anomalous magnetic moments of leptons represent excellent probes of the Standard Model and therefore also of possible new physics effects. In particular, the persisting hint of new physics in the muon $g$-2 motivates the investigation of similar effects also in the other leptonic dipoles. In this work, we examine the new physics sensitivity of the tau $g$-2 at future high-energy Muon Collider. We show that these facilities can access a number of processes like the Drell-Yan processes $μ^+μ^- \to τ^+τ^-(h)$, or vector-boson-fusion processes such as $μ^+μ^- \to μ^+μ^-τ^+τ^-$ and $μ^+μ^-\to ν_μ\barν_μτ^+τ^-$ those can probe the tau $g$-2 at the level of $\mathcal{O}(10^{-5}-10^{-4})$, a resolution that is orders of magnitude better than the current bounds.
title Probing $τ$ lepton dipole moments at future Muon Colliders
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2410.12663