Precision Muon-Related Observables as a Tool to Constrain New Physics Models

2023/10/10 by Gabriel Lourenço, Lourenço, Gabriel, André Milagre +5 · 2 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2310.06642

openalex publication_date 2023/10/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

We propose a set of precision muon-related observables that serve as a tool to constrain new physics models. Using LEP's precision measurements on the Z-boson pole, we derive bounds on the new physics quantum contributions to the decay Z → μ⁺ μ^-. We show that the new precision observables have a real impact on two specific models that solve the g-2 anomaly and provide a sound dark matter candidate.

Cited by

• Vectorlike lepton imprints at lepton g-2 measurements and e⁺e^- colliders
• The Muon Magnetic Moment and Physics Beyond the Standard Model

Related

• Muon g-2 and New Physics
• Precision Determination of the Muon g_μ-2 and α_{\rm Q.E.D.}(M²_Z)
• Prospects for precise predictions of a_μ in the Standard Model
• The New Muon g-2 Experiment at Fermilab
• Precision Muon Physics