Lepton specific two-Higgs-doublet model based on a U(1)X gauge symmetry with dark matter

2019/07/31 by Takaaki Nomura, Prasenjit Sanyal
Physics and Astronomy · #Anomalous magnetic dipole moment #Black Holes and Theoretical Physics #Dark Matter and Cosmic Phenomena #Dark matter #Electron #Gauge symmetry #Gauge theory #Higgs boson #Lepton #Muon #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Yukawa potential #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.100.115036

published as Phys. Rev. D 100, 115036 (2019) · 27 pages, 10 figures, version published in PRD

openalex created_date 2019/07/12 · openalex publication_date 2019/12/20 · arxiv created 2019/12/23 · arxiv updated 2019/12/25 · openalex updated_date 2026/08/05

Abstract

We discuss a two-Higgs-doublet model with extra U(1)_X gauge symmetry where lepton specific (type-X) structure for Yukawa interactions is realized by charge assignment of fields under the U(1)_X. Extra charged leptons are introduced to cancel gauge anomaly associated with extra gauge symmetry. In addition, we introduce scalar fields as dark matter candidates to which we assign Z₂ odd parity for guaranteeing stability of them. We then analyze the phenomenology of the model such as scalar potential, muon anomalous magnetic dipole moment, collider physics associated with Z^\ensuremath' boson from U(1)_X, and dark matter physics. Carrying out numerical analysis we search for a phenomenologically viable parameter region.

Citations

• FeynRules 2.0 — A complete toolbox for tree-level phenomenology
• Reevaluation of the hadronic contributions to the muon g−2 and to α (M²_Z)
• h, Z→ℓiℓ¯j,Δaμ,τ→(3μ, μγ)in generic two-Higgs-doublet models
• Hidden U(1) gauge symmetry realizing a neutrinophilic two-Higgs-doublet model with dark matter
• A two Higgs doublet model for dark matter and neutrino masses