ElectroWeak BaryoGenesis via Top Transport

We study electroweak baryogenesis driven by the top quark in two Higgs doublet model that allows flavor-changing neutral Higgs couplings. Taking Higgs sector couplings and the additional top Yukawa coupling ${\rho }_{tt}$ to be $\mathcal{O}$(1), one naturally has first order electroweak phase transition and sufficient $CP$ violation to fuel the cosmic baryon asymmetry. Even if ${\rho }_{tt}$ vanishes, the favor-changing coupling ${\rho }_{tc}$ can still achieve baryogenesis. Phenomenological consequences such as $t\to ch$, $\tau \to \mu\gamma$,electronelectricdipolemoment,$h\to\gamma\gamma$,and$hhh$couplingarediscussed\mathrm{.}Theextrascalars$H^0$,$A^0$and$H^\pm$ are sub-TeV in mass, and can be searched for at the LHC.