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Eibun Senaha
순수물리이론 연구단
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Electroweak baryogenesis driven by extra top Yukawa couplings

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Title
Electroweak baryogenesis driven by extra top Yukawa couplings
Author(s)
Kaori Fuyuto; Wei-Shu Hou; Eibun Senaha
Publication Date
2018-01
Journal
PHYSICS LETTERS B, v.776, no., pp.402 - 406
Publisher
ELSEVIER SCIENCE BV
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 rho(tt) all of O(1), one naturally has sizable CP violation that fuels the cosmic baryon asymmetry. Even if rho(tt) vanishes, the favor-changing coupling rho(tc) can still lead to successful baryogenesis. Phenomenological consequences such as t -> ch, tau -> mu gamma electron electric dipole moment, h -> gamma gamma, and hhhcoupling are discussed. Published by Elsevier B.V
URI
http://pr.ibs.re.kr/handle/8788114/4454
DOI
10.1016/j.physletb.2017.11.073
ISSN
0370-2693
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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