Sterile neutrinos coupling only to third-generation fermions are attractive dark matter candidates. In an EFT approach we demonstrate that they can generate the observed relic density without violating constraints from direct and indirect detection. Such an EFT represents a gauged third-generation $B-L$ model, as well as third-generation scalar or vector leptoquarks. LHC measurements naturally distinguish the different underlying models.
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- 1 Max-Planck-Institut für Kernphysik / Max Planck Institute for Nuclear Physics [MPIK]
- 2 Ruprecht-Karls-Universität Heidelberg / Heidelberg University