Dark sector electroweak baryogenesis in light of the Galactic Center excess

Le résumé fourni par la source

We revisit a model of electroweak baryogenesis that includes a dark matter candidate, and sequesters the new C P violation required to produce the baryon asymmetry in a dark sector. The model can explain the baryon asymmetry, dark matter relic density, and long-standing excess of gamma rays from the Galactic Center. The first order electroweak phase transition induced by the new physics can give rise to gravitational waves that may be observed in future experiments. The model predicts dark matter signals in direct detectors, and a significant contribution to the Higgs boson invisible decay width.

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