Dark Nuclei I: Cosmology and Indirect Detection

Abstract

In a companion paper (to be presented), lattice field theory methods are used to show that in two-color, two-flavor QCD there are stable nuclear states in the spectrum. As a commonly studied theory of composite dark matter, this motivates the consideration of possible nuclear physics in this and other composite dark sectors. In this work, early Universe cosmology and indirect detection signatures are explored for both symmetric and asymmetric dark matter, highlighting the unique features that arise from considerations of dark nuclei and associated dark nuclear processes. The present day dark matter abundance may be composed of dark nucleons and/or dark nuclei, where the latter are generated through it dark nucleosynthesis. For symmetric dark matter, indirect detection signatures are possible from annihilation, dark nucleosynthesis, and dark nuclear capture and we present a novel explanation of the galactic center gamma ray excess based on the latter. For asymmetric dark matter, dark nucleosynthesis may alter the capture of dark matter in stars, allowing for captured particles to be processed into nuclei and ejected from the star through dark nucleosynthesis in the core. Notably, dark nucleosynthesis realizes a novel mechanism for indirect detection signals of asymmetric dark matter from regions such as the galactic center, without having to rely on a symmetric dark matter component.

31 pages, 9 figures

References in corpus (27)

• Constraints on the Self-Interaction Cross-Section of Dark Matter from Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5
• Asymmetric Dark Matter
• Compact Stars as Dark Matter Probes
• Light Nuclei and Hypernuclei from Quantum Chromodynamics in the Limit of SU(3) Flavor Symmetry
• Constraining Asymmetric Dark Matter through observations of compact stars
• Dark Matter from new Technicolor Theories
• Ultra Minimal Technicolor and its Dark Matter TIMP
• Possible Evidence For Dark Matter Annihilation In The Inner Milky Way From The Fermi Gamma Ray Space Telescope
• (In)direct Detection of Boosted Dark Matter
• Towards Working Technicolor: Effective Theories and Dark Matter
• Cosmic Ray Protons in the Inner Galaxy and the Galactic Center Gamma-Ray Excess
• Composite dark matter from a model with composite Higgs boson
• Fitting the Galactic Center Gamma-Ray Excess with Cascade Annihilations
• Galactic Center gamma-ray "excess" from an active past of the Galactic Centre?
• Unified origin of baryons and dark matter
• A weighty interpretation of the Galactic Centre excess
• Fundamental Composite Higgs Dynamics on the Lattice: SU(2) with Two Flavors
• Dark Nuclei II: Nuclear Spectroscopy in Two-Colour QCD
• Dark matter burners
• Thermal Dark Matter from a Confining Sector
• Mixed dark matter from technicolor
• Solar constraints on asymmetric dark matter
• Baryogenesis, Dark Matter and the Pentagon
• Orthogonal Technicolor with Isotriplet Dark Matter on the Lattice
• Relating leptogenesis and dark matter
• Implications Of A Dark Sector U(1) For Gamma Ray Bursts
• Isotriplet Dark Matter on the Lattice: SO(4)-gauge theory with two Vector Wilson fermions

Cited by in corpus (15)

• A Tale of Tails: Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics
• WIMPs at the Galactic Center
• Dark-matter bound states from Feynman diagrams
• NMSSM Interpretation of the Galactic Center Excess
• Testing GeV-Scale Dark Matter with Fixed-Target Missing Momentum Experiments
• Updated cosmic-ray and radio constraints on light dark matter: Implications for the GeV gamma-ray excess at the Galactic center
• Boosted Dark Matter in IceCube and at the Galactic Center
• Detecting Boosted Dark Matter from the Sun with Large Volume Neutrino Detectors
• Dark Nuclei II: Nuclear Spectroscopy in Two-Colour QCD
• DAEdALUS and Dark Matter Detection
• Galactic center $\gamma$-ray excess in hidden sector DM models with dark gauge symmetries: local $Z_3$ symmetry as an example
• Nonthermal Two Component Dark Matter Model for Fermi-LAT $\gamma$-ray excess and 3.55 keV X-ray Line
• Annihilating Asymmetric Dark Matter
• Signals from dark atom formation in halos
• Galactic Center Gamma-Ray Excess through a Dark Shower