Neutrino masses and absence of flavor changing interactions in the 2HDM from gauge principles

Campos, M. de; Cogollo, D.; Lindner, M.; Melo, Téssio B. de; Queiroz, Farinaldo S.; Rodejohann, Werner

doi:10.1007/jhep08(2017)092

Cited by 76 publications

(89 citation statements)

References 121 publications

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“…In this model, all interactions are flavor diagonal, and for this reason we have no LFV observables. If one embeds the dark photon model into two-Higgs doublet models, LFV processes might arise [490].…”

Section: Dark Photonmentioning

confidence: 99%

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

2018

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We review how the muon anomalous magnetic moment (g − 2) and the quest for lepton flavor violation are intimately correlated. Indeed the decay µ → eγ is induced by the same amplitude for different choices of in-and outgoing leptons. In this work, we try to address some intriguing questions such as:Which hierarchy in the charged lepton sector one should have in order to reconcile possible signals coming simultaneously from g − 2 and lepton flavor violation?What can we learn if the g − 2 anomaly is confirmed by the upcoming flagship experiments at FERMILAB and J-PARC, and no signal is seen in the decay µ → eγ in the foreseeable future? On the other hand, if the µ → eγ decay is seen in the upcoming years, do we need to necessarily observe a signal also in g − 2?.In this attempt, we generally study the correlation between these observables in a detailed analysis of simplified models. We derive master integrals and

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Section: Dark Photonmentioning

confidence: 99%

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

2018

Self Cite

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“…* salcen@ific.uv.es † rodejoha@mpi-hd.mpg.de ‡ saldana@mpi-hd.mpg.de 1 There are other possibilities to explain the ad-hoc Z 2 , for instance by linking it to the remnant symmetry of a spontaneously broken U (1), see e.g. [3][4][5] where ψ R or ψ L are three-dimensional vectors in flavor space each denoting a weak singlet or a weak doublet, respectively, and ψ representing any of the four fermion types, ψ = q u , q d , , ν. Notice that the Higgs doublets must be replaced by their charge-conjugate fields, Φ k = iσ 2 Φ * k , for the up-type quark and neutrino cases 2 .…”

Section: Introductionmentioning

confidence: 99%

Two-Higgs-doublet models with a flavored Z2 symmetry

2020

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Two Higgs-doublet models usually consider an ad-hoc Z2 discrete symmetry to avoid flavor changing neutral currents. We consider a new class of two Higgs-doublet models where Z2 is enlarged to the symmetry group F Z2, i.e. an inner semi-direct product of a discrete symmetry group F and Z2. In such a scenario the symmetry constrains the Yukawa interactions but goes unnoticed by the scalar sector. In the most minimal scenario, Z3 Z2 = D3, flavor changing neutral currents mediated by scalars are absent at tree and one-loop level, while at the same time predictions to quark and lepton mixing are obtained, namely a trivial CKM matrix and a PMNS matrix (upon introduction of three heavy right-handed neutrinos) containing maximal atmospheric mixing. Small extensions allow to fully reproduce mixing parameters, including cobimaximal mixing in the lepton sector (maximal atmospheric mixing and a maximal CP phase).

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“…To discriminate the neutrinophilic Higgs doublet from the standard model (SM)-like Higgs doublet, one usually imposes an additional symmetry such as a global and/or gauged one [5][6][7][8][9][10][11][12], and this symmetry often plays a role in assuring stability of a dark matter (DM) candidate.…”

Section: Introductionmentioning

confidence: 99%

Hidden U(1) gauge symmetry realizing a neutrinophilic two-Higgs-doublet model with dark matter

Nomura¹,

Okada

2018

Phys. Rev. D

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We propose a neutrinophilic two-Higgs-doublet model with hidden local Uð1Þ symmetry, where active neutrinos are Dirac type, and a fermionic dark matter (DM) candidate is naturally induced as a result of remnant symmetry even after the spontaneous symmetry breaking. In addition, a physical Goldstone boson arises as a consequence of two types of gauge singlet bosons and contributes to the DM phenomenologies as well as an additional neutral gauge boson. Then, we analyze the relic density of DM within the safe range of direct detection searches and show the allowed region of dark matter mass.

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Neutrino masses and absence of flavor changing interactions in the 2HDM from gauge principles

Cited by 76 publications

References 121 publications

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

Two-Higgs-doublet models with a flavored Z2 symmetry

Hidden U(1) gauge symmetry realizing a neutrinophilic two-Higgs-doublet model with dark matter

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