Chiral Composite Asymmetric Dark Matter

Abstract

The asymmetric dark matter (ADM) scenario solves the baryon-dark matter coincidence problem when the dark matter (DM) mass is of $\mathcal{O}(1)$GeV. Composite ADM models based on QCD-like strong dynamics are particularly motivated since the strong dynamics naturally provides the DM mass of $\mathcal{O}(1)$GeV and the large annihilation cross-section simultaneously. In those models, the sub-GeV dark photon often plays an essential role in transferring the excessive entropy in the dark sector into the visible sector, i.e., the Standard Model sector. This paper constructs a chiral composite ADM model where the $U(1{)}_D$ gauge symmetry is embedded into the chiral flavor symmetry. Due to the dynamical breaking of the chiral flavor symmetry, the model naturally provides the masses of the dark photon and the dark pions in the sub-GeV range, both of which play crucial roles for a successful ADM model.

28 pages, 1 figure

References in corpus (9)

• Constraints on the Self-Interaction Cross-Section of Dark Matter from Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5
• Asymmetric Dark Matter
• The non-gravitational interactions of dark matter in colliding galaxy clusters
• Towards Working Technicolor: Effective Theories and Dark Matter
• Dark Nuclei I: Cosmology and Indirect Detection
• Evolution of the Baryon Asymmetry through the Electroweak Crossover in the Presence of a Helical Magnetic Field
• Thermal Dark Matter from a Confining Sector
• Chiral Dark Sector
• An SO(10) \times SO(10)' model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries

Cited by in corpus (5)

• Exploring the cosmological dark matter coincidence using infrared fixed points
• LHC Lifetime Frontier and Visible Decay Searches in Composite Asymmetric Dark Matter Models
• Dark Vector Mesons at LHC Forward Detector Searches
• Interactions of electrical and magnetic charges and dark topological defects
• Composite asymmetric dark matter with a dark photon portal: Multimessenger tests