Flavoured Dark Matter Moving Left

Abstract

We investigate the phenomenology of a simplified model of flavoured Dark Matter (DM), with a dark fermionic flavour triplet coupling to the left-handed $SU(2{)}_L$ quark doublets via a scalar mediator. The DM-quark coupling matrix is assumed to constitute the only new source of flavour and CP violation, following the hypothesis of Dark Minimal Flavour Violation. We analyse the constraints from LHC searches, from meson mixing data in the $K$, $D$, and $B_{d,s}$ meson systems, from thermal DM freeze-out, and from direct detection experiments. Our combined analysis shows that while the experimental constraints are similar to the DMFV models with DM coupling to right-handed quarks, the multitude of couplings between DM and the SM quark sector resulting from the $SU(2{)}_L$ structure implies a richer phenomenology and significantly alters the resulting impact on the viable parameter space.

23 pages, 11 figures. v2: some clarifying comments and references added, matches published version

References in corpus (7)

• Flavored dark matter beyond Minimal Flavor Violation
• Another Look at the Flavour Structure of the Littlest Higgs Model with T-Parity
• Lepton-Flavored Dark Matter
• Lepton-Flavored Scalar Dark Matter with Minimal Flavor Violation
• Flavour violating squark and gluino decays
• Charming Dark Matter
• Dark Matter on Top

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• B-physics anomalies: The bridge between R-parity violating Supersymmetry and flavoured Dark Matter
• Lepton-Flavoured Scalar Dark Matter in Dark Minimal Flavour Violation
• Tasting Flavoured Majorana Dark Matter
• Flavour-violating decays of mixed top-charm squarks at the LHC
• Opening the Higgs Portal to Lepton-Flavoured Dark Matter
• Single-top final states as a probe of top-flavoured dark matter models at the LHC
• Dark Sector Showers in the Lund Jet Plane
• Suppressed flavor violation in Lepton Flavored Dark Matter from an extra dimension
• Flavored Dark Sectors running to low energy
• t-channel dark matter at the LHC -- a whitepaper
• Flavoured Majorana Dark Matter then and now: From freeze-out scenarios to LHC signatures
• Flavor and CP Violation from a QCD-like Hidden Sector
• Flavoured $(g-2{)}_{\mu }$ with Dark Lepton Seasoning
• First steps towards the reconstruction of the squark flavour structure
• Theory, phenomenology, and experimental avenues for dark showers: a Snowmass 2021 report