Implications of two-component dark matter induced by forbidden channels and thermal freeze-out

Aoki, M.; Toma, Takashi

doi:10.1088/1475-7516/2017/01/042

Cited by 17 publications

(14 citation statements)

References 121 publications

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“…Different multicomponent dark matter models including both thermal and non-thermal dark matter candidates have been explored in the Refs. [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58]. In multicomponent dark matter models one of the candidates shares a fraction of total DM relic abundance and the other candidate provides the required amount of relic density in order to satisfy the total DM relic density observed by Planck [2].…”

Section: Introductionmentioning

confidence: 99%

Probing multicomponent extension of inert doublet model with a vector dark matter

2019

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Although theoretically well-motivated as a minimal consistent dark matter (DM) model, the inert doublet model (IDM) fell short in explaining the existence of DM in the intermediate mass region (100-500 GeV). We try to address this problem by introducing an additional vector dark matter. We show that the relic density of inert dark matter candidate can be enhanced significantly with new interactions in the intermediate mass region 100-500 GeV in the multicomponent dark matter model when compared with the usual single component inert doublet model. We also show that we can get a reasonable excess in the / E T distribution if we do not apply a very hard / E T cut on it as is customary in any dark matter search at the LHC.

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Section: Introductionmentioning

confidence: 99%

Probing multicomponent extension of inert doublet model with a vector dark matter

2019

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“…Recent studies on the multi-component DM scenarios within WIMP scenarios include refs. [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43].…”

Section: Jhep09(2021)028mentioning

confidence: 99%

A multi-component SIMP model with U(1)X → Z2 × Z3

Choi

Kim

et al. 2021

J. High Energ. Phys.

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Multi-component dark matter scenarios are studied in the model with U(1)X dark gauge symmetry that is broken into its product subgroup Z2 × Z3 á la Krauss-Wilczek mechanism. In this setup, there exist two types of dark matter fields, X and Y, distinguished by different Z2 × Z3 charges. The real and imaginary parts of the Z2-charged field, XR and XI, get different masses from the U(1)X symmetry breaking. The field Y, which is another dark matter candidate due to the unbroken Z3 symmetry, belongs to the Strongly Interacting Massive Particle (SIMP)-type dark matter. Both XI and XR may contribute to Y’s 3 → 2 annihilation processes, opening a new class of SIMP models with a local dark gauge symmetry. Depending on the mass difference between XI and XR, we have either two-component or three-component dark matter scenarios. In particular two- or three-component SIMP scenarios can be realised not only for small mass difference between X and Y, but also for large mass hierarchy between them, which is a new and unique feature of the present model. We consider both theoretical and experimental constraints, and present four case studies of the multi-component dark matter scenarios.

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“…After χ and ξ fields develop vacuum expectation values, the U (1) d will break with the residual discrete symmetries Z n 1 ⊗ Z n 2 . Examples are Z 2 ⊗ Z 2 [16] or Z 2 ⊗ Z 4 [19]. As a result χ and ξ can be both stable and will be the DM candidates.…”

Section: Brief Review Of the 2dm Modelsmentioning

confidence: 99%

On the evolution process of two-component dark matter in the Sun

Chen

Lin

2018

J. High Energ. Phys.

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We introduce dark matter (DM) evolution process in the Sun under a twocomponent DM (2DM) scenario. Both DM species χ and ξ with masses heavier than 1 GeV are considered. In this picture, both species could be captured by the Sun through DM-nucleus scattering and DM self-scatterings, e.g. χχ and ξξ collisions. In addition, the heterogeneous self-scattering due to χ and ξ collision is essentially possible in any 2DM models. This new introduced scattering naturally weaves the evolution processes of the two DM species that was assumed to evolve independently. Moreover, the heterogeneous self-scattering enhances the number of DM being captured in the Sun mutually. This effect significantly exists in a broad range of DM mass spectrum. We have studied this phenomena and its implication for the solar-captured DM annihilation rate. It would be crucial to the DM indirect detection when the two masses are close. General formalism of the 2DM evolution in the Sun as well as its kinematics are studied.

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Implications of two-component dark matter induced by forbidden channels and thermal freeze-out

Cited by 17 publications

References 121 publications

Probing multicomponent extension of inert doublet model with a vector dark matter

Probing multicomponent extension of inert doublet model with a vector dark matter

A multi-component SIMP model with U(1)X → Z2 × Z3

On the evolution process of two-component dark matter in the Sun

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