Sterile neutrino dark matter in a U(1) extension of the standard model

@article{Iwamoto2021SterileND,
  title={Sterile neutrino dark matter in a U(1) extension of the standard model},
  author={Sho Iwamoto and K'aroly Seller and Zolt'an Tr'ocs'anyi},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2021},
  volume={2022}
}
We explore the parameter space of a U(1) extension of the standard model — also called the super-weak model — from the point of view of explaining the observed dark matter energy density in the Universe. The new particle spectrum contains a complex scalar singlet and three right-handed neutrinos, among which the lightest one is the dark matter candidate. We explore both freeze-in and freeze-out mechanisms of dark matter production. In both cases, we find regions in the plane of the super-weak… 
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Sterile neutrino dark matter in the super-weak model

  • K. Seller
  • Physics
    Proceedings of 41st International Conference on High Energy physics — PoS(ICHEP2022)
  • 2022
The super-weak model is a U(1) extension of the Standard Model. In addition to a mediator 𝑍 (cid:48) , a singlet scalar field 𝜒 is added to deal with the meta-stability of the SM vacuum, and…

Super-weakly Coupled U(1)\(_z\) and GeV Neutrinos

The super-weak force combines three simple extensions of the Standard Model, one in gauge sector, one in fermion sector and one in scalar sector. Each of these extensions are well motivated by their…

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We consider gauged U(1) extensions of the standard model of particle physics with three right-handed sterile neutrinos and a singlet scalar. The neutrinos obtain mass via the type I seesaw mechanism.…

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Neutrino specific spin-3/2 dark matter

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The superweak force is a minimal, anomaly-free U(1) extension of the standard model, designed to explain the origin of (i) neutrino masses and mixing matrix elements, (ii) dark matter, (iii) cosmic…

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We summarize our analysis for the vacuum stability of the superweak extension of the standard model. The parameter space allowed by the 𝑊 -boson mass measurements and collider searches for a new…

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