Electroweak-like baryogenesis with new chiral matter

A bstract We propose a framework where phase transition associated with gauge symmetry breaking that occurs (not far) above the electroweak scale sets stage for baryogenesis similar to in Standard Model. concrete realization utilizes of SU(2) R × U(1) X → Y . New chiral fermions charged under extended have nonzero lepton numbers, which makes B − L anomalous. The new sector contains large flavor-dependent CP violation, Cabibbo-Kobayashi-Maskawa phase, without inducing sizable electric dipole moments Model particles. bubble wall dynamics first-order and sphaleron processes generate asymmetry, is transferred into baryon asymmetry via ordinary process. Unlike baryogenesis, can be strong first order violation not significantly suppressed by Yukawa couplings, so observed produced. model probed collider searches particles observation gravitational waves. One leptons becomes dark matter candidate. also embedded left-right symmetric theory solve problem.