Radiative neutrino masses in the singlet-doublet fermion dark matter model with scalar singlets

Restrepo, Diego; Rivera, Andrés; Sánchez-Peláez, Marta; Zapata, Óscar; Tangarife, Walter

doi:10.1103/physrevd.92.013005

Cited by 55 publications

(48 citation statements)

References 76 publications

(107 reference statements)

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“…[61] for a DM particle of 60 GeV, since it is a representative value in the case of the IDM to account for the proper relic density. Because of the larger cross section for pair produced higgsinos decaying into two taus plus missing transverse energy, we are able to exclude higgsino-like charged fermions in the range 115 < m χ + 1 /GeV < 180 by using the theoretical cross section calculated to next-to-leading order in [15].…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

“…A recast of the excluded cross section for slepton pair production pp →l +l− → l + l −χ0 1χ 0 1 , studied in ref. [59], 9 allows to exclude higgsino-like charged fermions up to 510 GeV [15].…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

“…There, the SM is increased with at least two singlet [11] or triplet [12,13] fermions and one scalar doublet which are odd under a Z 2 symmetry. In another realization, the roles are interchanged with at least two scalar singlets and one VL doublet fermion, while one additional fermion singlet is required to close the neutrino mass loop [14,15]. The role of the Z 2 in the scotogenic models is to forbid tree-level contributions to the neutrino masses which are generated at one-loop level.…”

Section: Jhep03(2016)162mentioning

confidence: 99%

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The inert Zee model

Longas

Portillo

Restrepo

et al. 2016

J. High Energ. Phys.

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We study a realization of the topology of the Zee model for the generation of neutrino masses at one-loop with a minimal set of vector-like fermions. After imposing an exact Z 2 symmetry to avoid tree-level Higgs-mediated flavor changing neutral currents, one dark matter candidate is obtained from the subjacent inert doublet model, but with the presence of new co-annihilating particles. We show that the model is consistent with the constraints coming from lepton flavor violation processes, oblique parameters, dark matter and neutrino oscillation data.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

Section: Numerical Results and Discussionmentioning

confidence: 99%

Section: Jhep03(2016)162mentioning

confidence: 99%

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The inert Zee model

Longas

Portillo

Restrepo

et al. 2016

J. High Energ. Phys.

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“…In the latter case, the additional vector-like lepton doublets are assumed to be odd under the same Z 2 symmetry as the singlets. As a result the DM emerge as an admixture of the neutral component of the doublets and the singlet [11][12][13][14][15][16][17][18][19][20][21], which we consider below.…”

Section: Introductionmentioning

confidence: 99%

Minimal vectorlike leptonic dark matter and signatures at the LHC

2016

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We propose a minimal vector-like leptonic dark matter (DM) with renormalisable interaction in a beyond the Standard Model (SM) scenario, where the SM is augmented with a vector-like doublet and a singlet leptons. The additional fermions are odd under a discrete Z2 symmetry, while the rest of the SM particles are singlets, and thus providing stability to the DM. In this scenario, we show that, the DM emerges as an admixture of the neutral component of the vector-like doublet and the singlet leptons. The singlet-doublet mixing (sin θ) plays a crucial role in yielding the correct relic density as well as in obtaining null direct DM search results through an interplay of interactions via Z and Higgs mediation. The mixing is also strongly constrained from the invisible Z and Higgs decay width. We found that the correct relic abundance of DM can be obtained in a large region of parameter space for DM-mass larger than MZ /2 and sin θ < ∼ 0.1. The details of model phenomenology with collider signatures at the Large hadron Collider (LHC) are discussed. In particular, we show that for sin θ < ∼ 0.01, the charged companion of the DM can give rise to an observable displaced vertex signature, marking a significant departure from other fermionic DM scenarios, while keeping the relic abundance intact.

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“…U (1) P Q = U (1) L , in a specific model, we choose the singlet-doublet-fermion dark-matter scenario with three additional scalars to obtain scotogenic neutrino masses [9,10]. This framework is however also adaptable for radiative quark and lepton masses [11,12].…”

mentioning

confidence: 99%

Anomalous leptonic U(1) symmetry: Syndetic origin of the QCD axion, weak-scale dark matter, and radiative neutrino mass

Restrepo

Zapata

2018

Mod. Phys. Lett. A

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The well-known leptonic U(1) symmetry of the standard model of quarks and leptons is extended to include a number of new fermions and scalars. The resulting theory has an invisible QCD axion (thereby solving the strong CP problem), a candidate for weak-scale dark matter, as well as radiative neutrino masses. A possible key connection is a color-triplet scalar, which may be produced and detected at the Large Hadron Collider.

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Radiative neutrino masses in the singlet-doublet fermion dark matter model with scalar singlets

Cited by 55 publications

References 76 publications

The inert Zee model

The inert Zee model

Minimal vectorlike leptonic dark matter and signatures at the LHC

Anomalous leptonic U(1) symmetry: Syndetic origin of the QCD axion, weak-scale dark matter, and radiative neutrino mass

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