Comparable Dark Matter and Baryon energy densities from Dark Grand Unification
arXiv:2411.16860 · doi:10.1007/JHEP03(2026)135
Abstract
We investigate a theory of dark grand unification, where dark matter consists of asymmetric dark baryons from the dark QCD sector. By unifying the dark color gauge group with the Standard Model gauge group, the asymmetry generation in both sectors originates from a common process that preserves a symmetry, resulting in comparable number densities. Furthermore, thanks to dark grand unification, the dark QCD sector shares a similar matter content with the QCD sector, leading to comparable running of the gauge couplings from the scale as high as GeV. This predicts a dark color confinement scale and thus dark baryon masses around the GeV scale, comparable to visible baryon masses. Together with the similar number densities, the model provides an explanation for the observed similarity between the energy densities of dark matter and baryons, . The model also features some novel phenomenology, including a GeV-scale flavored dark QCD sector with diquark dark baryons and light dark mesons. The interaction between the dark sector and the visible sector occurs via a new boson with a mass of TeV, which could be searched for at future hadron colliders. We also briefly discuss an dark grand unified theory featuring an dark QCD sector.
41 pages, 6 figures, 5 tables, v3: matches version accepted for publication in JHEP
References in corpus (19)
- Constraints on the Self-Interaction Cross-Section of Dark Matter from Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5
- Asymmetric Dark Matter
- Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
- Dark Matter from new Technicolor Theories
- Towards Working Technicolor: Effective Theories and Dark Matter
- Lepton-Flavored Dark Matter
- Non-universal gauge interactions addressing the inescapable link between Higgs and Flavour
- Lattice studies of the gauge theory with two fundamental and three antisymmetric Dirac fermions
- Low-energy effective description of dark theories
- One flavor QCD
- Grand unified hidden-sector dark matter
- Phenomenology of axion-like particles with universal fermion couplings -- revisited
- Unified dark matter with intermediate symmetry breaking scales
- The Reach of Threshold-Corrected Dark QCD
- Advancing the phenomenology of GeV-scale axion-like particles
- Chiral Gauge Dynamics: Candidates for Non-Supersymmetric Dualities
- Exploring the cosmological dark matter coincidence using infrared fixed points
- Strongly Interacting Dark Matter from Gauge Theory
- Dynamical symmetry breaking in Georgi-Glashow chiral-gauge theories