String Theory and the Dark Glueball Problem

Abstract

We study cosmological constraints on dark pure Yang-Mills sectors. Dark glueballs are overproduced for large regions of ultraviolet parameter space. The problem may be alleviated in two ways: via a large preferential reheating into the visible sector, motivating certain inflation or modulus decay models, or via decays into axions or moduli, which are strongly constrained by nucleosynthesis and $\Delta N_{\text{eff}}$ bounds. String models frequently have multiple hidden Yang-Mills sectors, which are subject to even stronger constraints due to the existence of multiple dark glueballs.

10 pages

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Cited by in corpus (42)

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• Dark Matter Spectra from the Electroweak to the Planck Scale
• Constraints on Primordial Black Holes From Big Bang Nucleosynthesis Revisited
• On String Theory Expectations for Photon Couplings to Axion-Like Particles
• On Algorithmic Universality in F-theory Compactifications
• A Search for Dark Matter in the Galactic Halo with HAWC
• Gravitational Waves from Dark Yang-Mills Sectors
• Cosmological Bounds on Non-Abelian Dark Forces
• A flavoured dark sector
• Glueball scattering cross section in lattice SU(2) Yang-Mills theory
• Searching for Dark Matter in the Galactic Halo with a Wide Field of View TeV Gamma-ray Observatory in the Southern Hemisphere
• Constraints on heavy decaying dark matter from 570 days of LHAASO observations
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• A Radiative Neutrino Mass Model with SIMP Dark Matter
• The Stochastic Axiverse
• Axion dark matter from frictional misalignment
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• Dark Matter and Naturalness
• Glueball dark matter, precisely
• Dark Matter from Dark Glueball Dominance
• Natural F-theory constructions of Standard Model structure from $E_7$ flux breaking
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• Slightly Ultra-violet Freeze-in a Hidden Gluonic Sector
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• Gauge symmetry breaking with fluxes and natural Standard Model structure from exceptional GUTs in F-theory
• Faking Gauge Coupling Unification in String Theory
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