Jul 5 – 12, 2017
Venice, Italy
Europe/Zurich timezone
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Electroweak baryogenesis via top transport

Jul 7, 2017, 10:15 AM
Room Volpi (Palazzo del Casinò)

Room Volpi

Palazzo del Casinò

Parallel Talk Top and Electroweak Physics Top and electroweak


Prof. George W.S. Hou George Wei-Shu Hou (National Taiwan University (TW))


We study electroweak baryogenesis driven by up-type heavy quarks in
a general two Higgs doublet model with $CP$ invariant Higgs potential.
With Higgs sector couplings and an additional top Yukawa coupling $\rho_{tt}$
all of $\mathcal{O}(1)$ in strength, one naturally has sizable $CP$ violation
that fuels a cosmic baryon asymmetry. Even if $\rho_{tt}$ vanishes, the flavor violating top-charm coupling $\rho_{tc}$ can still lead to successful
baryogenesis. Phenomenological consequences such as electron electric dipole
moment, $h \to \gamma\gamma$, and the interplay with $h\to\mu\tau$ and
$\tau\to\mu\gamma$, are discussed.

Presentation materials