Inert extension of the Zee model

Longas, Robinson

doi:10.1016/j.nuclphysbps.2015.10.128

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…Without loss of generality we assume H 0 to be the DM candidate. Hence, the DM phenomenology of the IZM is expected to be similar to the one in the IDM in scenarios where the particles not belonging to the IDM (κ 1,2 , χ 1,2 and N ) do not participate in the DM annihilation processes [12,13]. Accordingly, the viable DM mass range for this scenario is divided into two regimes [18][19][20][21][22][23][24]:…”

Section: B Dark Mattermentioning

confidence: 97%

“…In the high mass regime, when the particles not belonging to the IDM do not participated in the DM annihilation, m DM 500 GeV. However, when these particles do take part of DM annihilation, the extra (not present in the IDM) coannihilation processes can modify this region allowing m DM 350 GeV [13,14]. In contrast, the low mass region regime seems to be more affected because the DM candidate interacts with the SM through the new vectorlike leptons.…”

Section: Introductionmentioning

confidence: 99%

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Lepton dark matter portal in the inert Zee model

Gaviria,

Longas,

Rivera

2020

Preprint

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The inert Zee model is an extension of the Zee model for neutrino masses. This new model explains the dark matter relic abundance, generates a one-loop neutrino masses and forbids tree-level Higgs-mediated flavor changing neutral currents. Although the dark matter phenomenology of the model is similar to that of the inert doublet model, the presence of new vector-like fermions opens the lepton portal as a new dark matter annihilation channel. We study the impact of such a new portal in the low mass regime and show the parameter space allowed by direct and indirect searches of dark matter. Remarkably, we show that the region for m H 0 70GeV is recovered for λ L 10 −3 . We also show that future experiments like LZ and DARWIN could test a large region of the parameter space of the model.

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Section: B Dark Mattermentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Lepton dark matter portal in the inert Zee model

Gaviria,

Longas,

Rivera

2020

Preprint

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“…With respect to DM in the IZM, H 0 is the DM candidate as long as it remains as the lightest Z 2 -odd particle in the spectrum. Hence, we expect the DM phenomenology to be similar to the one in the IDM in scenarios where the particles not belonging to the IDM do not participate in the DM annihilation processes [6,9]. Accordingly, the viable DM mass range for this scenario is divided into two regimes [8]: the low mass regime, m H 0 m h /2, and the high mass regime, m H 0 500 GeV.…”

Section: The Modelmentioning

confidence: 99%

Testing the inert Zee model using lepton flavor observables

Longas

2018

Preprint

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The inert Zee model is an extension of the Zee model for neutrino masses to allow for a solution to the dark matter problem that involves two vector-like fields, a doublet and a singlet of SU(2) L , and two scalars, also a doublet and a singlet of SU(2) L , all of them being odd under an exact Z 2 symmetry. The introduction of the Z 2 guarantees one-loop neutrino masses, forbids tree-level Higgs-mediated flavor changing neutral currents and ensures the stability of the dark matter candidate. Due to the natural breaking of lepton numbers in the inert Zee model, we study the phenomenology of the processes leading to these kind of signals and establish which are the most promising experimental perspectives on that matter.

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“…The scalar content is the same as the Inert Zee model[92,93] but consists of only right-handed neutrinos in contrast to vector-like singlet and doublet. The ScotoSinglet model[94] is a neutral scalar extension of the Scotogenic model.…”

mentioning

confidence: 99%

$W$ boson mass shift, dark matter and $(g-2)_\ell$ in ScotoZee model

Dcruz¹,

Thapa²

2022

Preprint

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We present a model of radiative neutrino masses, Scotogenic model with a singly charged scalar (ScotoZee model), which resolves recently reported deviations in W boson mass as well as lepton g − 2, and naturally admits a scalar or a fermionc dark matter. We find that the mass splitting, of ∼ 100 GeV among the inert doublets fields, required by the shift in W boson mass can be evaded by introducing a singlet scalar, which also is a key to resolving (g − 2)µ (also, (g − 2)e) anomaly with in 1σ. We show consistency of this framework with dark matter relic abundance, while satisfying constraints from charged lepton flavor violation, direct detection as well as collider constraints. We show that the model gives predictions for the lepton flavor violating processes testable in upcoming experiments.

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Inert extension of the Zee model

Cited by 5 publications

References 9 publications

Lepton dark matter portal in the inert Zee model

Lepton dark matter portal in the inert Zee model

Testing the inert Zee model using lepton flavor observables

$W$ boson mass shift, dark matter and $(g-2)_\ell$ in ScotoZee model

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