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تسجيل مستخدم جديدElectroWeak BaryoGenesis via Top Transport
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تأليف
George W.-S. Hou
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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 $tto ch$, $tau to mugamma$, electron electric dipole moment, $htogammagamma$, and $hhh$ coupling are discussed. The extra scalars $H^0$, $A^0$ and $H^pm$ are sub-TeV in mass, and can be searched for at the LHC.
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