Hidden strongly interacting massive particles

Abstract

We consider dark matter as Strongly Interacting Massive Particles (SIMPs) in a hidden sector, thermally decoupled from the Standard Model heat bath. Due to its strong interactions, the number-changing processes of the SIMP lead to its thermalization at temperature $T_{\mathrm{D}}$ different from the visible sector temperature $T$, and subsequent decoupling as the Universe expands. We study the evolution of the dark SIMP abundance in detail and find that a hidden SIMP provides for a consistent framework for self-interacting dark matter. Thermalization and decoupling of a composite SIMP can be treated within the domain of validity of chiral perturbation theory unlike the simplest realizations of the SIMP, where the SIMP is in thermal equilibrium with the Standard Model.

arXiv comment22 pages, 5 figures, minor revision to match version to appear in PRD

References in corpus (40)

• Planck 2015 results. XIII. Cosmological parameters
• Results from a search for dark matter in the complete LUX exposure
• An absorption profile centred at 78 megahertz in the sky-averaged spectrum
• Freeze-In Production of FIMP Dark Matter
• Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi-LAT Data
• Dark Matter Self-interactions and Small Scale Structure
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• The SIMP Miracle
• Gravitational waves from the sound of a first order phase transition
• The Dawn of FIMP Dark Matter: A Review of Models and Constraints
• Indirect Dark Matter Signatures in the Cosmic Dark Ages I. Generalizing the Bound on s-wave Dark Matter Annihilation from Planck
• Thermally Generated Gauge Singlet Scalars as Self-Interacting Dark Matter
• The Four Basic Ways of Creating Dark Matter Through a Portal
• The SIMPlest Miracle
• Dark matter production in the early Universe: beyond the thermal WIMP paradigm
• Gravitational Waves From a Dark (Twin) Phase Transition
• Dark-matter sterile neutrinos in models with a gauge singlet in the Higgs sector
• Production Regimes for Self-Interacting Dark Matter
• Scale invariant extension of the standard model with strongly interacting hidden sector
• SIMP Spectroscopy
• Physical Naturalness and Dynamical Breaking of Classical Scale Invariance
• Constraints on Self-Interacting Dark Matter
• $Z_2$ SIMP Dark Matter
• Cosmology and Accelerator Tests of Strongly Interacting Dark Matter
• Chilly Dark Sectors and Asymmetric Reheating
• Communication with SIMP dark mesons via Z'-portal
• Isocurvature Constraints on Portal Couplings
• Inflationary Imprints on Dark Matter
• SIMP model at NNLO in chiral perturbation theory
• E-Wimps
• Gravitational Waves from Hidden QCD Phase Transition
• Physics Reach of DUNE with a Light Sterile Neutrino
• Gravitational wave from dark sector with dark pion
• Can Non-Adiabatic Perturbations Arise After Single-Field Inflation?
• Galactic Centre GeV Photons from Dark Technicolor
• Observational Constraints on Decoupled Hidden Sectors
• Prospects for indirect detection of frozen-in dark matter
• SIMP from a strong U(1) gauge theory with a monopole condensation
• Dark Spectroscopy
• Axion-like particle assisted strongly interacting massive particle

Cited by in corpus (12)

• Scalar singlet dark matter in non-standard cosmologies
• Despicable Dark Relics: generated by gravity with unconstrained masses
• Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal
• Phenomenology of Self-Interacting Dark Matter in a Matter-Dominated Universe
• Casting a graph net to catch dark showers
• Non-thermal production of Dark Matter after Inflation
• Gravitational Wave Signals from Multiple Hidden Sectors
• Precision calculations of dark matter relic abundance
• Low-Temperature Enhancement of Semi-annihilation and the AMS-02 Positron Anomaly
• Fate of the first-order chiral phase transition in QCD: Implications for dark QCD studied via a Nambu-Jona-Lasinio model
• MeV scale model of SIMP dark matter, neutrino mass and leptogenesis
• Strongly-interacting massive particle and dark photon in the era of intensity frontier