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Two-component scalar and fermionic dark matter candidates in a generic U$(1)_X$ model

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arxiv 2202.01443 v3 pith:VGAREOJJ submitted 2022-02-03 hep-ph

Arindam Das , Shivam Gola , Sanjoy Mandal , Nita Sinha This is my paper · ORCID
classification hep-ph
keywords darkmattermathbbmodelunderdensityreliccandidates
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We consider a $U(1)_X\otimes \mathbb{Z}_2\otimes \mathbb{Z}'_2$ extension of the Standard Model (SM), where the $U(1)_X$ charge of an SM field is given by a linear combination of its hypercharge and B$-$L number. Apart from the SM particle content, the model contains three right-handed neutrinos (RHNs) $N_R^i$ and two scalars $\Phi$, $\chi$, all singlets under the SM gauge group but charged under $U(1)_X$ gauge group. Two of these additional fields, fermion $N_R^3$ is odd under $\mathbb{Z}_2$ and scalar $\chi$ is odd under $\mathbb{Z}'_2$ symmetry. Thus both $\chi$ and $N_R^3$ contribute to the observed dark matter relic density, leading to two-component dark matter candidates. We study in detail its dark matter properties such as relic density and direct detection taking into account the constraints coming from collider studies. We find that in our model, there can be possible annihilation of one Dark Matter (DM) into the other, which may potentially alter the relic density in a significant way.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Prospecting bipartite Dark Matter through Gravitational Waves

    hep-ph 2024-12 conditional novelty 6.0 of 10

    A two-component dark matter model with an inert triplet scalar and a singlet fermion can explain the relic abundance while producing a strong electroweak phase transition and gravitational wave signals detectable by L...

  2. Probing mixed-state dark matter and flavor observables in a scalar-assisted baryonic gauge theory

    hep-ph 2026-02 reject novelty 5.0 of 10

    Adding a colored scalar S1 to a U(1)_B dark matter model correlates dark matter freeze-out with b→s μ+μ− observables, but the flavor amplitudes use a Z'–muon coupling that the model's zero-kinetic-mixing limit forbids.

  3. Two-Component Dark Matter with an SU(2) Dark Sector

    hep-ph 2025-12 conditional novelty 5.0 of 10

    A hidden SU(2) gauge sector that breaks to a Z3-protected two-component dark matter scenario is shown to have parameter points satisfying existing constraints.

  4. Exploring two component doublet dark matter

    hep-ph 2025-05 conditional novelty 5.0 of 10

    A two-component model with an inert scalar doublet and a pseudo-Dirac fermion doublet can match Planck relic density and direct and indirect limits in sub-TeV mass regions, and a type-II seesaw triplet can also genera...

  5. Indirect dark matter searches with neutrino telescopes via energetic cosmic showers

    hep-ph 2025-09 reject novelty 3.0 of 10

    Bounds on Z'-mediated dark matter are derived from neutrino telescopes, freeze-in, and cosmic strings, but the telescope bounds rest on comparing a Galactic-center flux to faraway sources.

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