Little composite dark matter

Abstract

We examine the dark matter phenomenology of a composite electroweak singlet state. This singlet belongs to the Goldstone sector of a well-motivated extension of the Littlest Higgs with $T$-parity. A viable parameter space, consistent with the observed dark matter relic abundance as well as with the various collider, electroweak precision and dark matter direct detection experimental constraints is found for this scenario. $T$-parity implies a rich LHC phenomenology, which forms an interesting interplay between conventional natural SUSY type of signals involving third generation quarks and missing energy, from stop-like particle production and decay, and composite Higgs type of signals involving third generation quarks associated with Higgs and electroweak gauge boson, from vector-like top-partners production and decay. The composite features of the dark matter phenomenology allows the composite singlet the produce the correct relic abundance while interacting weakly with the Higgs via the usual Higgs portal coupling ${\lambda }_{\text{DM}}\sim O(1\%)$, thus evading direct detection.

27 pages + appendices and references, 7 figures

References in corpus (13)

• Gauge Singlet Scalars as Cold Dark Matter
• First Dark Matter Search Results from the XENON1T Experiment
• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• micrOMEGAs4.1: two dark matter candidates
• Squark and gluino production cross sections in pp collisions at $\sqrt{s}$ = 13, 14, 33 and 100 TeV
• Search for direct production of charginos, neutralinos and sleptons in final states with two leptons and missing transverse momentum in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• A unified explanation for dark matter and electroweak baryogenesis with direct detection and gravitational wave signatures
• Direct Bounds on Heavy Top-Like Quarks With Standard and Exotic Decays
• Composite Dark Matter and LHC Interplay
• Charged Composite Scalar Dark Matter
• A Weakly Coupled Ultraviolet Completion of the Littlest Higgs with T-parity
• Exceptional Composite Dark Matter
• T-parity, its problems and their solution

Cited by in corpus (13)

• A Global View of the Off-Shell Higgs Portal
• Supercool Composite Dark Matter Beyond 100 TeV
• Dark matter shifts away from direct detection
• Searches for vector-like quarks at future colliders and implications for composite Higgs models with dark matter
• Collider Searches for Dark Matter through the Higgs Lens
• The top-quark window on compositeness at future lepton colliders
• A Singlet Dark Matter in the SU(6)/SO(6) Composite Higgs Model
• Composite dark matter phenomenology in the presence of lighter degrees of freedom
• Searching for pseudo Nambu-Goldstone boson dark matter production in association with top quarks
• Inverse see-saw neutrino masses in the Littlest Higgs model with T-parity
• Composite 2HDM with singlets: a viable dark matter scenario
• Dark Matter as a remnant of SQCD Inflation
• Direct Detection of Ultralight Dark Matter via Charged Lepton Flavor Violation