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- W2940806661 abstract "We study baryogenesis in effective field theories where a $mathrm{U}(1)_{ B-L}$-charged scalar couples to gravity via curvature invariants. We analyze the general possibilities in such models, noting the relationships between some of them and existing models, such as Affleck-Dine baryogenesis. We then identify a novel mechanism in which $mathrm{U}(1)_{ B-L}$ can be broken by couplings to the Gauss-Bonnet invariant during inflation and reheating. Using analytic methods, we demonstrate that this mechanism provides a new way to dynamically generate the net matter-anti-matter asymmetry observed today, and verify this numerically." @default.
- W2940806661 created "2019-05-03" @default.
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- W2940806661 date "2019-09-17" @default.
- W2940806661 modified "2023-09-24" @default.
- W2940806661 title "Baryogenesis via gravitational spontaneous symmetry breaking" @default.
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- W2940806661 doi "https://doi.org/10.1103/physrevd.100.063518" @default.
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