Fermion mass hierarchies from vector-like families with an extended 2HDM and a possible explanation for the electron and muon anomalous magnetic moments

Hernández, A. E. Cárcamo; King, S. F.; Lee, H.

doi:10.48550/arxiv.2101.05819

Cited by 6 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is possible to explain electron (g − 2) in addition to muon (g − 2) in modified type-X by introducing vector like leptons [12,13] 1 . Then, sizable the electron (g − 2) is achieved by mediating the exotic fermions at a one-loop level, while the muon (g − 2) can be explained at the two-loop level.…”

Section: Introductionmentioning

confidence: 99%

Inverse seesaw and $(g-2)$ anomalies in $B-L$ extended two Higgs doublet model

Mondal,

Okada

2021

Preprint

View full text Add to dashboard Cite

We propose a gauged U (1) B−L extended two Higgs doublet model to explain both neutrino mass and lepton anomalous magnetic moments (g − 2). Neutrino mass is generated via an inverse seesaw mechanism by introducing singlet fermions. Thanks to an appropriate assignment for U (1) B−L × Z 2 symmetry and larger (20 ) tan β that is favoured by type-X model, we realize natural hierarchies among neutral fermions. The lepton anomalous magnetic moments can be induced at the one loop level by introducing an iso-spin singlet singly-charged boson. This charged scalar plays a significant role in evading chiral suppression of these phenomenologies. We show sizable lepton (g − 2) can be obtained after satisfying all the flavour constraints, such as µ → eγ and flavour conserving leptonic Z boson decays.

show abstract

Section: Introductionmentioning

confidence: 99%

Inverse seesaw and $(g-2)$ anomalies in $B-L$ extended two Higgs doublet model

Mondal,

Okada

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The conclusion is also true for the Minimal supersymmetric model MSSM [64][65][66]. As usual solution, there is a variety of extensions of THDM that successfully explain and accommodate the (g − 2) e,µ anomalies by adding new vector-like fermions as SU (2) L multiplets [38][39][40][41][42][43] as well as SU (2) L singlets of neutral and charged Higss bosons [54,56,[68][69][70][71]. Only few THDM models with scalar singlets and fermions can successfully explain the experimental data of both muon and electron anomalous magnetic moments [42,67,69].…”

Section: )mentioning

confidence: 74%

“…µ,e anomalies. Such theories rely on the inclusion of vector-like lepton multiplets [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50],…”

Section: )mentioning

confidence: 99%

Heavy singly charged Higgs bosons and inverse seesaw neutrinos as origins of large $(g-2)_{e,μ}$ in two higgs doublet models

Hue,

Hernández,

Long

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

We show that simple extensions of two higgs doublet models consisting of new heavy neutrinos and a singly charged Higgs boson singlet can successfully explain the experimental data on muon and electron anomalous magnetic moments thanks to large chirally-enhanced one-loop level contributions. These contributions arise from the large couplings of inverse seesaw neutrinos with singly charged Higgs bosons and right-handed charged leptons. The regions of parameter space satisfying the experimental data on (g −2) e,µ anomalies allow heavy singly charged Higgs boson masses above the TeV scale, provided that heavy neutrino masses are above few hundred GeV, the non-unitary part of the active neutrino mixing matrix must be large enough, two singly charged Higgs bosons are non degenerate, and the mixing between singly charged Higgs bosons must be non-zero.

show abstract

“…Many models beyond the SM (BSM) have been constructed to explain the experimental data of (g − 2) µ,e , such as models adding vector-like lepton multiplets [8][9][10][11][12][13][14][15][16][17], leptoquarks [18], both neutral and charged Higss bosons as SU (2) L singlets [19]. Some two Higgs doublet models can give large two-loop contributions to ∆a µ from new SU (2) L Higgs doublets [20][21][22], where some of them require rather light masses of new neutral and/or charged Higgs bosons at few hundred GeV.…”

Section: Introductionmentioning

confidence: 99%

An explanation of experimental data of $(g-2)_{e,μ}$ in 3-3-1 models with inverse seesaw neutrinos

Hue,

Phan,

Nguyen

et al. 2021

Preprint

View full text Add to dashboard Cite

We will show that the anomalous magnetic moment experimental data of muon and electron (g − 2) µ,e can be explained simultaneously in simple extensions of the 3-3-1 models consisting of new heavy neutrinos and a singly charged Higgs boson. The heavy neutrinos generate active neutrinos masses and mixing through the general seesaw mechanism. They also have non-zero Yukawa couplings with singly charged Higgs bosons and right-handed charged leptons, which result in large one-loop contributions known as chirally-enhanced ones. Numerical investigation confirms a conclusion indicated previously that these contributions are the key point to explain the large (g − 2) µ,e data, provided that the inverse seesaw mechanism is necessary to allow both conditions that heavy neutrino masses are above few hundred GeV and non-unitary part of the active neutrino mixing matrix must be large enough.

show abstract

Fermion mass hierarchies from vector-like families with an extended 2HDM and a possible explanation for the electron and muon anomalous magnetic moments

Cited by 6 publications

References 0 publications

Inverse seesaw and $(g-2)$ anomalies in $B-L$ extended two Higgs doublet model

Inverse seesaw and $(g-2)$ anomalies in $B-L$ extended two Higgs doublet model

Heavy singly charged Higgs bosons and inverse seesaw neutrinos as origins of large $(g-2)_{e,μ}$ in two higgs doublet models

An explanation of experimental data of $(g-2)_{e,μ}$ in 3-3-1 models with inverse seesaw neutrinos

Contact Info

Product

Resources

About