Hints of a new leptophilic Higgs sector?

Abstract

We show that a new leptophilic Higgs sector can resolve some intriguing anomalies in current experimental data across multiple energy ranges. Motivated by the recent CMS excess in the resonant $e\mu$ channel at 146 GeV, we focus on a leptophilic two-Higgs-doublet model, and propose a resonant production mechanism for the neutral components of the second Higgs doublet at the LHC using the lepton content of the proton. Interestingly, the same Yukawa coupling $Y_{e\mu }\sim 0.6-0.8$ that explains the CMS excess also addresses the muon $(g-2)$ anomaly. Moreover, the new Higgs doublet also resolves the recent CDF $W$-boson mass anomaly. The relevant model parameter space will be completely probed by future LHC data.

6 pages + references, 4 figures; to appear in Phys. Rev. D

References in corpus (29)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Observation of electron-antineutrino disappearance at Daya Bay
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• Measurement of the fine-structure constant as a test of the Standard Model
• A portrait of the Higgs boson by the CMS experiment ten years after the discovery
• A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
• How bright is the proton? A precise determination of the photon parton distribution function
• A new bound on the electron's electric dipole moment
• Measurement of the Electron Magnetic Moment
• The Photon Content of the Proton
• Window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD
• Lattice calculation of the short and intermediate time-distance hadronic vacuum polarization contributions to the muon magnetic moment using twisted-mass fermions
• New Barr-Zee contributions to $(\mathbf{g}-2{)}_{\mu }$ in two-Higgs-doublet models
• Electroweak Precision Fit and New Physics in light of $W$ Boson Mass
• Searches for additional Higgs bosons and for vector leptoquarks in $\tau \tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for a 'stable alignment limit' in two Higgs-doublet models
• Light-quark connected intermediate-window contributions to the muon $g-2$ hadronic vacuum polarization from lattice QCD
• Search for lepton-flavor violating decays of the Higgs boson in the $\mu \tau$ and e$\tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• The CMS di-photon excess at 95 GeV in view of the LHC Run 2 results
• Global fits in the Aligned Two-Higgs-Doublet model
• Leptons in the Proton
• Neutrino masses and magnetic moments of electron and muon in the Zee Model
• Searches for lepton-flavour-violating decays of the Higgs boson into $e\tau$ and $\mu \tau$ in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for the lepton-flavor violating decay of the Higgs boson and additional Higgs bosons in the e$\mu$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Constraining Lepton Flavor Violating Higgs Couplings at the HL-LHC in the Vector Boson Fusion Channel
• A New Higgs Boson with Electron-Muon Flavor-Violating Couplings

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• Neutrino mass models at $\mu$TRISTAN
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• Search for sub-GeV Scalars in $e^{+}{e}^{-}$ collisions
• Novel probes for electron-muon flavor violation from exotic Higgs decays
• Leptophilic Portals to New Physics at Colliders