KEK素粒子原子核研究所・理論セミナー(久保田 充紀氏)
カテゴリ | 理論セミナー |
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開始 | 2020/05/07 (木) 13:30 |
終了 | 2020/05/07 (木) 14:30 |
会場 | Online (Zoom) |
講演タイトル | CP-violating Higgs model canceling the electric dipole moment |
講演者 | 久保田 充紀氏(大阪大学) |
言語 | 英語/English |
連絡先 | |
ウェブサイト | |
食堂・売店 | 利用予定なし/0 |
概要
Baryon asymmetry of the Universe requires an extra CP violation and a mechanism for departure from equilibrium for a baryon-number changing process. The extended model with the CP-violating Higgs sector is a good candidate realizing it. However, such extra CP violation is strongly constrained by the electric dipole moment (EDM) data. In this talk, we propose an idea to overcome that conflict between the requirement and the constraint in the general two Higgs doublet model in which the CP-violating phases are originated by the scalar potential and the Yukawa interaction. In our scenario, the contributions to the EDM from the two sources of the CP violation can lead to destructive interference. Consequently, we show that the individual CP-violating phases can get O(1) [rad] while the EDM constraints are satisfied. This talk is based on arXiv:2004.03943 [hep-ph].
カテゴリ
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国際会議・研究会
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コロキウム
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セミナー
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談話会・交流会