http://arxiv.org/abs/1910.08068
We present a very minimal model for baryogenesis by a dark first-order phase transition. It employs a new dark $SU(2){D}$ gauge group with two doublet Higgs bosons, two lepton doublets, and two singlets. The singlets act as a neutrino portal that transfer the generated asymmetry to the Standard Model. The model predicts exotic decays of the Higgs and $Z$ bosons, $\Delta N\text{eff} = 0.09-0.13$, and stochastic gravitational waves, all detectable by future experiments.
E. Hall, T. Konstandin, R. McGehee, et. al.
Fri, 18 Oct 19
40/77
Comments: 7+1 pages, 3 figures
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