An ultralight scalar temporarily lowers a dark fermion mass via muon thermal density, opening efficient B meson dark decays for baryon asymmetry generation that later shuts off to match flavor data.
(See [29] for a recent review of RPV searches.) We also note that by adding a large coupling constant, ytdi ∼5, we are effectively broadening theYwidth
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Mesogenesis through the Ephemeral Dark Decay of Beauty
An ultralight scalar temporarily lowers a dark fermion mass via muon thermal density, opening efficient B meson dark decays for baryon asymmetry generation that later shuts off to match flavor data.