Resolving Muon g-2 Anomaly With Partial Compositeness

Abstract

We consider the scenario of composite Higgs with partial compositeness to address the muon g-2 anomaly. We show that this anomaly is resolved by one-loop correction due to composite muon partners with mass scale of order TeVs and large Yukawa coupling to composite Higgs, which is different from interpretations of vectorlike lepton models. We present parameter space by imposing indirect constraints from precise measurements on Higgs, Z and oblique electroweak parameters. We analyze direct constraints in light of both Drell-Yan and Higgs-associated productions of the composite muon partners at high-luminosity LHC. It turns out that the surviving parameter regions with the lighter composite muon mass below $\sim 325$ GeV can be excluded at 2$\sigma$ order by the Drell-Yan processes.

References in corpus (10)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• The $g-2$ of charged leptons, $\alpha (M_Z^2)$ and the hyperfine splitting of muonium
• Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order
• New physics explanations of $a_{\mu }$ in light of the FNAL muon $g-2$ measurement
• Vector-like Leptons: Muon g-2 Anomaly, Lepton Flavor Violation, Higgs Decays, and Lepton Non-Universality
• Muon $g-2$ in two Higgs doublet models with vectorlike leptons
• Probing composite Higgs boson substructure at the HL-LHC
• Naturalness of lepton non-universality and muon g-2
• Muon Magnetic Moment and the Goldstone Boson Higgs

Cited by in corpus (2)

• The Muon Magnetic Moment and Physics Beyond the Standard Model
• Collider Signatures of a Scalar Leptoquark and Vector-like Lepton in Light of Muon Anomaly