$(g-2{)}_{\mu }$ in the 2HDM and slightly beyond -- an updated view

Abstract

The recent measurement of the muon $g-2$ anomaly continues to defy a Standard Model explanation, but can be accommodated within the framework of two Higgs doublet models. If one further includes extra fermion content in the form of a generation of vector like leptons, the allowed parameter range that explains the anomaly is even further extended, and thorny issues of perturbativity and clashes with $B$-decay constraints avoided. We will show how the muon magnetic moment anomaly can be fit within these models, under the assumption that the vector-like leptons do not mix with the muon. We update previous analyses and include all theoretical and experimental constraints, including searches for extra scalars. It is shown that the inclusion of vector-like fermions allows the lepton-specific and muon-specific models to perform much better in fitting the muon's $g-2$. These fits do require the Yukawa coupling between the Higgs and the vector-like leptons to be large, causing potential problems with perturbativity and unitarity, and thus models in which the vector-like leptons mix with the muon may be preferred.

arXiv commentv3: References and comments added; typos corrected; changes for referee report

References in corpus (43)

• Theory and phenomenology of two-Higgs-doublet models
• Final Report of the Muon E821 Anomalous Magnetic Moment Measurement at BNL
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• The Anatomy of Electro-Weak Symmetry Breaking. II: The Higgs bosons in the Minimal Supersymmetric Model
• The anomalous magnetic moment of the muon in the Standard Model
• The muon $g-2$ and $\alpha (M_Z^2)$: a new data-based analysis
• A new evaluation of the hadronic vacuum polarisation contributions to the muon anomalous magnetic moment and to $\mathbf{\alpha }({\mathbf{m}}_{\mathbf{Z}}^2)$
• Calculation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment
• Yukawa Alignment in the Two-Higgs-Doublet Model
• Combined explanations of $(g-2{)}_{\mu ,e}$ and implications for a large muon EDM
• A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model
• Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Vector-like leptons: Higgs decays and collider phenomenology
• Explanation of the Muon g-2 Anomaly with Vectorlike Leptons and its Implications for Higgs Decays
• Status of the Charged Higgs Boson in Two Higgs Doublet Models
• Limiting two-Higgs-doublet models
• Charged-Higgs phenomenology in the Aligned two-Higgs-doublet model
• New Barr-Zee contributions to $(\mathbf{g}-2{)}_{\mu }$ in two-Higgs-doublet models
• A Guaranteed Discovery at Future Muon Colliders
• Generic Loop Effects of New Scalars and Fermions in $b\to s{\ell }^{+}{\ell }^{-}$, $(g-2{)}_{\mu }$ and a Vector-like $4^{\mathrm{th}}$ Generation
• Phenomenological signatures of additional scalar bosons at the LHC
• Resolving electron and muon $g-2$ within the 2HDM
• Indirect bounds on heavy scalar masses of the two-Higgs-doublet model in light of recent Higgs boson searches
• A light pseudoscalar of 2HDM confronted with muon g-2 and experimental constraints
• Dark matter assisted lepton anomalous magnetic moments and neutrino masses
• $b\to s{\ell }^{+}{\ell }^{-}$ Transitions in Two-Higgs-Doublet Models
• The simple interpretations of lepton anomalies in the lepton-specific inert two-Higgs-doublet model
• Leptonic Precision Test of Leptophilic Two-Higgs-Doublet Model
• Explaining $g-2$ anomalies in two Higgs doublet model with vector-like leptons
• Revisiting lepton-specific 2HDM in light of muon g-2 anomaly
• Muon g-2 in the 2HDM: maximum results and detailed phenomenology
• Muon $g-2$ in the Aligned Two Higgs Doublet Model
• LHC $\tau$-rich Tests of Lepton-specific 2HDM for $(g-2{)}_{\mu }$
• $g_{\mu }-2$ from Vector-Like Leptons in Warped Space
• Connecting the Muon Anomalous Magnetic Moment and the Multi-lepton Anomalies at the LHC
• Muon specific two-Higgs-doublet model
• Muon Anomalous Magnetic Moment in Two Higgs Doublet Models with Vector-Like Leptons
• Highly enhanced contributions of heavy Higgs bosons and new leptons to muon $g-2$ and prospects at future colliders
• Interplay of New Physics Effects in $(g-2{)}_{\ell }$ and $h\to {\ell }^{+}{\ell }^{-}$ -- Lessons from SMEFT
• Muon $g-2$ at multi-TeV muon collider
• The collider tests of a leptophilic scalar for the anomalous magnetic moments
• Suppression of the Higgs Dimuon Decay
• A variant two-Higgs doublet model with a new Abelian gauge symmetry

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• Predictions for Muon Electric and Magnetic Dipole Moments from $h\to {\mu }^{+}{\mu }^{-}$ in Two-Higgs-Doublet Models with New Leptons
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