Dark matter relic density in strongly interacting dark sectors with light vector mesons

Abstract

Stable dark matter particles may arise as pseudo-Goldstone bosons from the confinement of dark quarks interacting via a non-Abelian gauge force. Their relic abundance is determined not by annihilations into visible particles but by dark pion number-changing processes within the dark sector, such as $3{\pi }_D\to 2{\pi }_D$. However, if the dark vector mesons ${\rho }_D$ are light enough for $3{\pi }_D\to {\pi }_D{\rho }_D$ annihilations to be kinematically allowed, this process dominates and significantly delays freeze-out. As a result, the preferred dark matter mass scale increases and bounds from the Bullet Cluster can be evaded.

10 pages revtex4, 3 figures; v2: additional diagrams included, results updated, conclusions unchanged

References in corpus (49)

• New Developments in FeynCalc 9.0
• Echoes of a Hidden Valley at Hadron Colliders
• Constraints on the Self-Interaction Cross-Section of Dark Matter from Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5
• FeynCalc 9.3: New features and improvements
• The SIMP Miracle
• The SIMPlest Miracle
• Implications of Generalized Z-Z' Mixing
• What does the Bullet Cluster tell us about self-interacting dark matter?
• Emerging Jets
• Composite strongly interacting dark matter
• Review of strongly-coupled composite dark matter models and lattice simulations
• SIMP Spectroscopy
• Semi-visible Jets: Dark Matter Undercover at the LHC
• The Effects of QCD Equation of State on the Relic Density of WIMP Dark Matter
• Cosmology and Accelerator Tests of Strongly Interacting Dark Matter
• QCD modeling of hadron physics
• LHC Searches for Dark Sector Showers
• Weakly Interacting Stable Pions
• QCD with light Wilson quarks on fine lattices (I): first experiences and physics results
• Co-SIMP Miracle
• Searching for Confining Hidden Valleys at the LHC(b)
• The Mismeasure of Mergers: Revised Limits on Self-interacting Dark Matter in Merging Galaxy Clusters
• Cosmic abundances of SIMP dark matter
• SIMP model at NNLO in chiral perturbation theory
• Hadron Spectroscopy with Dynamical Chirally Improved Fermions
• Perturbative benchmark models for a dark shower search program
• Thermal Dark Matter from a Confining Sector
• Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal
• Resolving phenomenological problems with strongly-interacting-massive-particle models with dark vector resonances
• Casting a graph net to catch dark showers
• Dark matter in Hidden Valley models with stable and unstable light dark mesons
• Dark Mesons at the LHC
• Collider phenomenology of Hidden Valley mediators of spin 0 or 1/2 with semivisible jets
• Search for resonant production of strongly coupled dark matter in proton-proton collisions at 13 TeV
• The Thermal History of Composite Dark Matter
• Jet Substructure from Dark Sector Showers
• Spectral density of the Dirac operator in two-flavour QCD
• Light Hidden Mesons through the Z Portal
• Low-energy effective description of dark $Sp(4)$ theories
• Chiral Symmetry Breaking on the Lattice
• Split SIMPs with Decays
• New sensitivity of LHC measurements to Composite Dark Matter Models
• Classification of dark pion multiplets as dark matter candidates and collider phenomenology
• Towards resolving strongly-interacting dark sectors at colliders
• Search for non-resonant production of semi-visible jets using Run 2 data in ATLAS
• Forecasting dark showers at Belle II
• Scalar Co-SIMP Dark Matter: Models and Sensitivities
• On the challenges of searching for GeV-scale long-lived particles at the LHC
• SIMPly add a dark photon

Cited by in corpus (3)

• Dark sector searches with the CMS experiment
• Sub-GeV dark matter and multi-decay signatures from dark showers at beam-dump experiments
• Strongly Interacting Dark Matter admixed Neutron Stars