Lepton flavor violation and collider searches in a type I + II seesaw model

Ferreira, Manoel M.; Melo, Téssio B. de; Kovalenko, Sergey; Pinheiro, Paulo R. D.; Queiroz, Farinaldo S.

doi:10.1140/epjc/s10052-019-7422-z

Cited by 19 publications

(7 citation statements)

References 113 publications

(120 reference statements)

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“…The consideration of different mass hiearchies will not bring much impact to our paper which focuses on the proposition of a new 2HDM model. Anyways, strictly speaking, one should keep in mind that different mass hierarchies are subject to different collider bounds as pointed out [93]. Anyway, if we find ourselves in a situation where both doubly charged scalar and Z fields are observed, our model stands as a potential well motivated environment for them.…”

Section: Lhc -Doubly Charged Scalarmentioning

confidence: 92%

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

Camargo

Dias

Melo

et al. 2019

J. High Energ. Phys.

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General Two Higgs Doublet Models (2HDM) are popular Standard Model extensions but feature flavor changing interactions and lack neutrino masses. We discuss a 2HDM where neutrino masses are generated via type I seesaw and propose an extension where neutrino masses are generated via a type II seesaw mechanism with flavor changing interactions being absent via the presence of a U(1) gauge symmetry. After considering a variety of bounds such as those rising from collider and electroweak precision we show that our proposal stands as a UV complete 2HDM with a dark photon where neutrino masses and flavor changing interactions are addressed. A possible dark matter realization is also discussed.

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Section: Lhc -Doubly Charged Scalarmentioning

confidence: 92%

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

Camargo

Dias

Melo

et al. 2019

J. High Energ. Phys.

Self Cite

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“…[88][89][90] for classic phenomenological studies and Refs. [91][92][93][94][95][96] for projections of H ±± at future hadron colliders). At the low-energy high-precision frontier, the coupling f αβ is also constrained by the LFV decays α → β γ, α → β γ δ , the electron and muon g − 2, muonium oscillation, and the LEP e + e − → + − data (see e.g., Ref.…”

Section: Doubly Charged Scalar H ±±mentioning

confidence: 99%

Charged Lepton Flavor Violation at the High-Energy Colliders: Neutrino Mass Relevant Particles

Zhang

2022

Universe

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We summarize the potential charged lepton flavor violation (LFV) from neutrino mass relevant models, for instance the seesaw mechanisms. In particular, we study, in a model-dependent way, the LFV signals at the high-energy hadron and lepton colliders originating from the beyond standard model (BSM) neutral scalar H, doubly charged scalar H±±, heavy neutrino N, heavy WR boson, and the Z′ boson. For the neutral scalar, doubly charged scalar and Z′ boson, the LFV signals originate from the (effective) LFV couplings of these particles to the charged leptons, while for the heavy neutrino N and WR boson, the LFV effects are from flavor mixing in the neutrino sector. We consider current limits on these BSM particles and estimate their prospects at future high-energy hadron and lepton colliders.

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“…This inequality needs to be checked after each fit to make sure that the found parameter values are acceptable. Furthermore, there are experimental bounds on the parameters related to the SU(2) L triplet: v L 1 GeV and M ∆ 1 TeV [58,59]. Finally, the vev v R should be set to M GUT .…”

Section: Jhep09(2021)111mentioning

confidence: 99%

Flavor symmetries in the Yukawa sector of non-supersymmetric SO(10): numerical fits using renormalization group running

Ohlsson

Pernow

2021

J. High Energ. Phys.

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We consider a class of SO(10) models with flavor symmetries in the Yukawa sector and investigate their viability by performing numerical fits to the fermion masses and mixing parameters. The fitting procedure involves a top-down approach in which we solve the renormalization group equations from the scale of grand unification down to the electroweak scale. This allows the intermediate scale right-handed neutrinos and scalar triplet, involved in the type I and II seesaw mechanisms, to be integrated out at their corresponding mass scales, leading to a correct renormalization group running. The result is that, of the 14 models considered, only two are able to fit the known data well. Both these two models correspond to ℤ2 symmetries. In addition to being able to fit the fermion masses and mixing parameters, they provide predictions for the sum of light neutrino masses and the effective neutrinoless double beta decay mass parameter, which are both within current observational bounds.

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Lepton flavor violation and collider searches in a type I + II seesaw model

Cited by 19 publications

References 113 publications

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

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

Charged Lepton Flavor Violation at the High-Energy Colliders: Neutrino Mass Relevant Particles

Flavor symmetries in the Yukawa sector of non-supersymmetric SO(10): numerical fits using renormalization group running

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