Signatures of Top Flavored Dark Matter

Abstract

We study the experimental signatures of top flavored dark matter (top FDM) in direct detection searches and at the LHC. We show that for a dark matter mass above 200 GeV, top FDM can be consistent with current bounds from direct detection experiments and relic abundance constraints. We also show that next generation direct detection experiments will be able to exclude the entire perturbative parameter region for top FDM. For regions of parameter space where the flavor partners of top FDM are not readily produced, the LHC signatures of top FDM are similar to those of other models previously studied in the literature. For the case when the flavor partners are produced at the LHC, we study their impact on a search based on transverse mass variables and find that they diminish the signal significance. However, when the DM flavor partners are split in mass by less than 120-130 GeV, the LHC phenomenology becomes very distinctive through the appearance of displaced vertices. We also propose a strategy by which all parameters of the underlying model can be experimentally determined when the flavor partners can be observed.

15 pages, 16 figures. v2: references added. v3: references added; minor changes, conclusions unchanged; matches published version

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• Anatomy of Coannihilation with a Scalar Top Partner
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• Stop Co-Annihilation in the Minimal Supersymmetric Standard Model Revisited
• Dark Freeze-out Cogenesis
• Secretly Asymmetric Dark Matter
• Fermionic Dark Matter in a simple $t$-channel model