Neutrino masses in a two Higgs doublet model with a U(1) gauge symmetry

Camargo, Daniel A.; Dias, Alex G.; Melo, Téssio B. de; Queiroz, Farinaldo S.

doi:10.1007/jhep04(2019)129

Cited by 25 publications

(20 citation statements)

References 106 publications

(139 reference statements)

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“…In summary, here we introduce a Two-Higgs-Doublet Model (2HDM) embedded in the SM ⊗ U(1) X gauge group [20][21][22] where only the second generation of fermions is -2 -…”

Section: Jhep10(2019)278mentioning

confidence: 99%

Light mediators in anomaly free U (1)X models. Part I. Theoretical framework

Correia

Fajfer

2019

J. High Energ. Phys.

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We examine theoretical features of U(1) X extensions of the Standard Model whose quantum anomalies are canceled per generation. Similarly to other versions, the theory consists of a Two-Higgs-Doublet Model plus a scalar singlet embedded into the SM ⊗ U(1) X gauge group, and introduces small modifications to the Z-boson interactions. These changes can be minimized by exclusively charging right-handed fermions under the new Abelian symmetry, and are compensated by the neutral X-boson exchange. Nonuniversality of fermion couplings can also be achieved by requiring one single X-charged family. In general, X gauge bosons can be separated into A and Z subsets, distinguished by the presence of axial-vector components in the Z exchange. A physics, in particular the dark photons case, is commonly simpler to constrain and therefore favored by experimental tests. Finally, the model can be UV completed both by stable χ fermions or by right-handed neutrinos. The prior case may provide cold WIMPs in the theory.

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“…In summary, here we introduce a Two-Higgs-Doublet Model (2HDM) embedded in the SM ⊗ U(1) X gauge group [20][21][22] where only the second generation of fermions is -2 -…”

Section: Jhep10(2019)278mentioning

confidence: 99%

Light mediators in anomaly free U (1)X models. Part I. Theoretical framework

Correia

Fajfer

2019

J. High Energ. Phys.

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“…We note that the 2HDM augmented with an extra local abelian (1) has been discussed in the literature [32][33][34][35][36][37] to address neutrino masses, dark matter and to avoid FCNC interactions at the tree level.…”

Section: Introductionmentioning

confidence: 99%

Consistency of gauged two Higgs doublet model: gauge sector

Cheng-Tse

Ramos

Tran

et al. 2019

J. High Energ. Phys.

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We study the constraints on the new parameters in the gauge sector of gauged two Higgs doublet model using the electroweak precision test data collected from the Large Electron Positron Collider (LEP) at and off the -pole as well as the current Drell-Yan and high-mass dilepton resonance data from the Large Hadron Collider (LHC). Impacts on the new parameters by the projected sensitivities of various electroweak observables at the Circular Electron Positron Collider (CEPC) proposed to be built in China are also discussed. We also clarify why the Stüeckelberg mass for the hypercharge (1) is set to be zero in the model by showing that it would otherwise lead to the violation of the standard charge assignments for the elementary quarks and leptons when they couple to the massless photon.

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“…Here in G2HDM, they are grouped with new heavy right-handed neutrinos ν H lR to form SUð2Þ H doublets instead. For other related ideas extending the 2HDM with extra gauge symmetries to address flavor problem, dark matter, and neutrino masses, see, e.g., [41][42][43][44][45][46]. The matter contents of the G2HDM model and their respective quantum numbers are listed in Table I.…”

Section: Matter Fieldsmentioning

confidence: 99%

Complex scalar dark matter in the gauged two-Higgs-doublet model

et al. 2020

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The complex scalar dark matter (DM) candidate in the gauged two-Higgs-doublet model, stabilized by a peculiar hidden parity (h parity), is studied in detail. We explore the parameter space for the DM candidate by taking into account the most recent DM constraints from various experiments, in particular, the PLANCK relic density measurement and the current DM direct detection limit from XENON1T. We separate our analysis in three possible compositions for the mixing of the complex scalar. We first constrain our parameter space with the vacuum stability and perturbative unitarity conditions for the scalar potential, LHC Higgs measurements, plus Drell-Yan and electroweak precision test constraints on the gauge sector. We find that DM dominated by composition of the inert doublet scalar is completely excluded by further combining the previous constraints with both the latest results from PLANCK and XENON1T. We also demonstrate that the remaining parameter space with two other DM compositions can be further tested by indirect detection like the future Cherenkov Telescope Array gamma-ray telescope.

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Neutrino masses in a two Higgs doublet model with a U(1) gauge symmetry

Cited by 25 publications

References 106 publications

Light mediators in anomaly free U (1)X models. Part I. Theoretical framework

Light mediators in anomaly free U (1)X models. Part I. Theoretical framework

Consistency of gauged two Higgs doublet model: gauge sector

Complex scalar dark matter in the gauged two-Higgs-doublet model

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