A dark-sector electroweak baryogenesis model with a ~50 GeV fermionic dark matter candidate can simultaneously match the baryon asymmetry, the dark matter relic density, and (at ~2 sigma) the galactic center gamma-ray excess, and predicts observable gravitational waves.
[8], both assuming a b quark annihilation channel
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Dark Sector Electroweak Baryogenesis In Light Of The Galactic Center Excess
A dark-sector electroweak baryogenesis model with a ~50 GeV fermionic dark matter candidate can simultaneously match the baryon asymmetry, the dark matter relic density, and (at ~2 sigma) the galactic center gamma-ray excess, and predicts observable gravitational waves.