Majorana Dark Matter with a Coloured Mediator: Collider vs Direct and Indirect Searches

Abstract

We investigate the signatures at the Large Hadron Collider of a minimal model where the dark matter particle is a Majorana fermion that couples to the Standard Model via one or several coloured mediators. We emphasize the importance of the production channel of coloured scalars through the exchange of a dark matter particle in the t-channel, and perform a dedicated analysis of searches for jets and missing energy for this model. We find that the collider constraints are highly competitive compared to direct detection, and can even be considerably stronger over a wide range of parameters. We also discuss the complementarity with searches for spectral features at gamma-ray telescopes and comment on the possibility of several coloured mediators, which is further constrained by flavour observables.

32 pages, 9 figures

References in corpus (16)

• Dark Matter Results from 225 Live Days of XENON100 Data
• Indirect search for dark matter with micrOMEGAs2.4
• First dark matter search results from a 4-kg CF${}_3$I bubble chamber operated in a deep underground site
• Maverick dark matter at colliders
• Search for photon line-like signatures from Dark Matter annihilations with H.E.S.S
• New Gamma-Ray Contributions to Supersymmetric Dark Matter Annihilation
• Deducing the nature of dark matter from direct and indirect detection experiments in the absence of collider signatures of new physics
• Supersymmetry production cross sections in pp collisions at sqrt{s} = 7 TeV
• On the Importance of Electroweak Corrections for Majorana Dark Matter Indirect Detection
• Combining K-\bar K mixing and D-\bar D mixing to constrain the flavor structure of new physics
• Light non-degenerate squarks at the LHC
• Lessons from Recent Measurements of D-\bar D Mixing
• On the effective operators for Dark Matter annihilations
• Closing in on mass-degenerate dark matter scenarios with antiprotons and direct detection
• On the spin-dependent sensitivity of XENON100
• Bremsstrahlung signatures of dark matter annihilation in the Sun

Cited by in corpus (27)

• Review of LHC Dark Matter Searches
• Characterising dark matter searches at colliders and direct detection experiments: Vector mediators
• On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC Part III: Analysis for the $t$-channel
• LHC Searches for Dark Sector Showers
• Robust collider limits on heavy-mediator Dark Matter
• Connecting Dark Matter UV Complete Models to Direct Detection Rates via Effective Field Theory
• Signatures of Majorana dark matter with t-channel mediators
• Anatomy of Coannihilation with a Scalar Top Partner
• Sharp Gamma-ray Spectral Features from Scalar Dark Matter Annihilations
• Forbidden Dark Matter at the Weak Scale via the Top Portal
• Simplified Dark Matter Models with Charged Mediators: Prospects for Direct Detection
• Dark Matter on Top
• Searching for lepton portal dark matter with colliders and gravitational waves
• Top-philic Dark Matter in a Hybrid KSVZ axion framework
• Dark Matter Signals in Dilepton Production at Hadron Colliders
• Precision prediction of a democratic up-family philic KSVZ axion model at the LHC
• Stop Co-Annihilation in the Minimal Supersymmetric Standard Model Revisited
• Comprehensive exploration of t-channel simplified models of dark matter
• Unveiling desert region in inert doublet model assisted by Peccei-Quinn symmetry
• Probing Radiative Neutrino Mass Generation through Monotop Production
• Minimal Consistent Dark Matter models for systematic experimental characterisation: Fermion Dark Matter
• Impact of bound states on non-thermal dark matter production
• Probing Dark Matter Electromagnetic Properties in Direct Detection Experiments
• t-channel dark matter at the LHC -- a whitepaper
• A Study of Dark Matter and QCD-Charged Mediators in the Quasi-Degenerate Regime
• Chromo-Rayleigh Interactions of Dark Matter
• Theory, phenomenology, and experimental avenues for dark showers: a Snowmass 2021 report