Resonant Sub-GeV Dirac Dark Matter

Abstract

We study the phenomenology and detection prospects of a sub-GeV Dirac dark matter candidate with resonantly enhanced annihilations via a dark photon mediator. The model evades cosmological constraints on light thermal particles in the early universe while simultaneously being in reach of current and upcoming terrestrial experiments. We conduct a global analysis of the parameter space , considering bounds from accelerator and direct detection experiments, as well as those arising from Big Bang Nucleosynthesis, the Cosmic Microwave Background and dark matter self-interactions. We also extend our discussion to the case of a dark matter subcomponent. We find that large regions of parameter space remain viable even for the case of a moderate resonant enhancement, and demonstrate the complementarity of different experimental strategies for further exploring this scenario.

arXiv comment20 pages, 7 figures + appendices; v2: matches published version; v3: minor correction to figure 7, conclusions unchanged

References in corpus (13)

• Freeze-In Production of FIMP Dark Matter
• PPPC 4 DM ID: A Poor Particle Physicist Cookbook for Dark Matter Indirect Detection
• The Four Basic Ways of Creating Dark Matter Through a Portal
• Serendipity in dark photon searches
• Migdal Effect in Dark Matter Direct Detection Experiments
• Refined Bounds on MeV-scale Thermal Dark Sectors from BBN and the CMB
• Constraining Dark Sectors with Monojets and Dijets
• BBN constraints on the annihilation of MeV-scale dark matter
• Hazma: A Python Toolkit for Studying Indirect Detection of Sub-GeV Dark Matter
• Invisible and displaced dark matter signatures at Belle II
• Search for production of an invisible dark photon in ${\pi }^0$ decays
• Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal
• Freeze-in production of decaying dark matter in five steps

Cited by in corpus (16)

• The Forward Physics Facility: Sites, Experiments, and Physics Potential
• FORESEE: FORward Experiment SEnsitivity Estimator for the LHC and future hadron colliders
• Detecting Dark Matter with Far-Forward Emulsion and Liquid Argon Detectors at the LHC
• Neutrino experiments probe hadrophilic light dark matter
• Long-lived Dark Higgs and Inelastic Dark Matter at Belle II
• Bounds on boosted dark matter from direct detection: The role of energy-dependent cross sections
• Resonant or asymmetric: The status of sub-GeV dark matter
• Discovering Dark Matter at the LHC through Its Nuclear Scattering in Far-Forward Emulsion and Liquid Argon Detectors
• Blazar boosted Dark Matter -- direct detection constraints on ${\sigma }_{e\chi }$ : Role of energy dependent cross sections
• A Global Analysis of Resonance-enhanced Light Scalar Dark Matter
• Dark Moments for the Standard Model ?
• Testing freeze-in with axial and vector $Z^{\prime }$ bosons
• Dark Matter perspective of Left-Right symmetric gauge model
• GeV-scale dark matter with $p$-wave Breit-Wigner enhanced annihilation
• The Bactrian Effect: Multiple Resonances and Light Dirac Dark Matter
• The Forward Physics Facility at the High-Luminosity LHC