Cosmological Abundance of Colored Relics

Abstract

The relic cosmological abundance of stable or long-lived neutral colored particles gets reduced by about a few orders of magnitude by annihilations that occur after QCD confinement. We compute the abundance and the cosmological bounds on relic gluinos. The same post-confinement effect strongly enhances co-annihilations with a lighter Dark Matter particle, provided that their mass difference is below a few GeV. Charged colored particles (such as stops) can instead form baryons, which can be (quasi)stable in some models.

arXiv comment24 pages, 7 figures

References in corpus (42)

• The Cosmic Microwave Background Spectrum from the Full COBE/FIRAS Data Set
• An absorption profile centred at 78 megahertz in the sky-averaged spectrum
• Supersymmetric Unification Without Low Energy Supersymmetry And Signatures for Fine-Tuning at the LHC
• Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
• PPPC 4 DM ID: A Poor Particle Physicist Cookbook for Dark Matter Indirect Detection
• Aspects of Split Supersymmetry
• The Primordial Inflation Explorer (PIXIE): A Nulling Polarimeter for Cosmic Microwave Background Observations
• The static potential in QCD to two loops
• Probing High-Scale and Split Supersymmetry with Higgs Mass Measurements
• Casimir scaling of SU(3) static potentials
• General Constraints on Dark Matter Decay from the Cosmic Microwave Background
• Particle physics catalysis of thermal Big Bang Nucleosynthesis
• Revisiting Big-Bang Nucleosynthesis Constraints on Long-Lived Decaying Particles
• Cosmological constraints on exotic injection of electromagnetic energy
• Big Bang Nucleosynthesis as a Probe of New Physics
• Search for new phenomena in dijet events using 37 fb${}^{-1}$ of $pp$ collision data collected at $\sqrt{s}=$13 TeV with the ATLAS detector
• Higgs Mass and Unnatural Supersymmetry
• Benchmarks for Dark Matter Searches at the LHC
• Gamma-ray Constraints on Decaying Dark Matter and Implications for IceCube
• Lattice QCD at non-zero temperature
• 21cm Limits on Decaying Dark Matter and Primordial Black Holes
• Cosmological Implications of Dark Matter Bound States
• Too Hot, Too Cold or Just Right? Implications of a 21-cm Signal for Dark Matter Annihilation and Decay
• Electromagnetic Cascade in the Early Universe and its Application to the Big-Bang Nucleosynthesis
• Gluino Decays in Split Supersymmetry
• Hadrons with a heavy colour-adjoint particle
• Fastlim: a fast LHC limit calculator
• Natural ranges of supersymmetric signals
• The Relic Abundance of Long-lived Heavy Colored Particles
• Colored Dark Matter
• Gluino Coannihilation Revisited
• The light stop window
• Dark Matter as a weakly coupled Dark Baryon
• Gluino decays with heavier scalar superpartners
• Bounds on Dark Matter decay from 21 cm line
• Limits on Split Supersymmetry from Gluino Cosmology
• Prediction of the Omega_bbb mass from lattice QCD
• The fine-tuning price of the early LHC
• Effect of Long-lived Strongly Interacting Relic Particles on Big Bang Nucleosynthesis
• Dark quarkonium formation in the early universe
• Limit on the mass of a long-lived or stable gluino
• The QCD string tension curve, the ferromagnetic magnetization, and the quark-antiquark confining potential at finite Temperature

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• An Analytic Approach to Light Dark Matter Propagation
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• Testing Dirac leptogenesis with the cosmic microwave background and proton decay
• Fractionally Charged Particles at the Energy Frontier: The SM Gauge Group and One-Form Global Symmetry
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• The Minimal Simple Composite Higgs Model
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