electroweak baryogenesis driven by extra top yukawa couplings
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ID: 192277
2018
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Abstract
We study electroweak baryogenesis driven by the top quark in a general two Higgs doublet model with flavor-changing Yukawa couplings, keeping the Higgs potential CP invariant. With Higgs sector couplings and the additional top Yukawa coupling ρtt all of O(1), one naturally has sizable CP violation that fuels the cosmic baryon asymmetry. Even if ρtt vanishes, the favor-changing coupling ρtc can still lead to successful baryogenesis. Phenomenological consequences such as t→ch, τ→μγ electron electric dipole moment, h→γγ, and hhh coupling are discussed.
| Reference Key |
fuyuto2018physicselectroweak
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|---|---|
| Authors | ;Kaori Fuyuto;Wei-Shu Hou;Eibun Senaha |
| Journal | ACS chemical biology |
| Year | 2018 |
| DOI |
10.1016/j.physletb.2017.11.073
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