Same-Sign Dilepton Signature in the Inert Doublet Model *

Yang, F.; Han, Zhi-Long; Jin, Y.

doi:10.1088/1674-1137/abf828

Cited by 7 publications

(1 citation statement)

References 90 publications

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“…Results obtained in the IDM for the same-sign dilepton searches in Ref. [68] or for the reach of future colliders [69] can be applied here. A distinctive signature of this scenario could be associated with the process pp → Ã H → (Z S S)( ÃZ) leading to two Z's and missing energy.…”

Section: The Case Where Mmentioning

confidence: 99%

WIMP and FIMP dark matter in the inert doublet plus singlet model

Belanger,

Mjallal,

Pukhov

2022

Preprint

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We consider multi-component dark matter in a model where one dark matter component is feebly interacting (FIMP) while the second is weakly interacting (WIMP). The model contains an inert scalar doublet and a complex scalar singlet and features a discrete Z 4 symmetry. We determine the parameter space that satisfies theoretical constraints, collider constraints, relic density as well as direct and indirect detection limits. We discuss the possibility to probe the model through collider and astrophysical searches. We find that it is possible that the FIMP forms the dominant DM component, in this case the astrophysical signatures of the WIMP are much suppressed. We also explore the case where the doublet can decay into pairs of singlets leaving only one DM component, the FIMP. These scenarios are constrained by BBN and are best explored at colliders since astrophysical signatures are suppressed.

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Section: The Case Where Mmentioning

confidence: 99%

WIMP and FIMP dark matter in the inert doublet plus singlet model

Belanger,

Mjallal,

Pukhov

2022

Preprint

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Unraveling the Scotogenic model at muon collider

Liu

Han

Jin

et al. 2022

J. High Energ. Phys.

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The Scotogenic model extends the standard model with three singlet fermion Ni and one inert doublet scalar η to address the common origin of tiny neutrino mass and dark matter. For fermion dark matter N1, a hierarchical Yukawa structure $$ \mid {y}_{1e}\mid \ll \mid {y}_{1\mu}\mid \sim \mid {y}_{1\tau}\mid \sim \mathcal{O}(1) $$ ∣ y 1 e ∣ ≪ ∣ y 1 μ ∣ ∼ ∣ y 1 τ ∣ ∼ O 1 is usually favored to satisfy constraints from lepton flavor violation and relic density. Such large μ-related Yukawa coupling would greatly enhance the pair production of charged scalar η± at the muon collider. In this paper, we investigate the dilepton and mono-photon signature of the Scotogenic model at a 14 TeV muon collider. For the dimuon signature "Image missing", we find that most viable samples can be probed with 200 fb−1 data. The ditau signature "Image missing" is usually less promising, but it is important to probe the small |y1μ| region. The mono-photon signature "Image missing" could also probe the compressed mass region M1 ≲ $$ {M}_{\eta^{\pm }} $$ M η ± . Masses of charged scalar η± and dark matter N1 can be further extracted by a binned likelihood fit of the dilepton energy.

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Single production of vectorlike X quarks at the HL-LHC

Han

Mao

et al. 2023

Nuclear Physics B

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Same-Sign Dilepton Signature in the Inert Doublet Model *

Cited by 7 publications

References 90 publications

WIMP and FIMP dark matter in the inert doublet plus singlet model

WIMP and FIMP dark matter in the inert doublet plus singlet model

Unraveling the Scotogenic model at muon collider

Single production of vectorlike X quarks at the HL-LHC

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