Journal of High Energy Physics

, 2017:100 | Cite as

Probing the scotogenic FIMP at the LHC

  • Andre G. Hessler
  • Alejandro Ibarra
  • Emiliano MolinaroEmail author
  • Stefan Vogl
Open Access
Regular Article - Theoretical Physics


We analyse the signatures at the Large Hadron Collider (LHC) of the scotogenic model, when the lightest Z 2-odd particle is a singlet fermion and a feebly interacting massive particle (FIMP). We further assume that the singlet fermion constitutes the dark matter and that it is produced in the early Universe via the freeze-in mechanism. The small couplings required to reproduce the observed dark matter abundance translate into decay-lengths for the next-to-lightest Z 2-odd particle which can be macroscopic, potentially leading to spectacular signatures at the LHC. We characterize the possible signals of the model according to the spectrum of the Z 2-odd particles and we derive, for each of the cases, bounds on the parameters of the model from current searches.


Beyond Standard Model Neutrino Physics 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Physik-Department T30dTechnische Universität MünchenGarchingGermany
  2. 2.CP3-Origins and University of Southern DenmarkOdense MDenmark
  3. 3.Max Planck Institute for Nuclear PhysicsHeidelbergGermany
  4. 4.Institute for Nuclear Physics, Karlsruhe Institute of TechnologyEggenstein-LeopoldshafenGermany

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