Electroweak baryogenesis via top-charm mixing

Date

2023/07/11 11:00 – 12:00

Venue

Hybrid (On-site: Seminar room 321, 322. Online: Zoom)

Speaker

Mr. Yushi Mura (Osaka University)

Language

English

URL

Contact

Yu Hamada/yuhamada-AT-post.kek.jp


Overview

Electroweak baryogenesis is a promising scenario to solve baryon asymmetry of the Universe, which is one of big mysteries of particle physics. I will discuss a scenario of electroweak baryogenesis in the two Higgs doublet model with quark flavor mixing. In general, off-diagonal components of quark Yukawa interactions with additional Higgs bosons are strongly constrained by the data for flavor changing neutral currents. However, top-charm quark mixing is not the case, so that a large off-diagonal element can be taken, which can contribute to generating baryon asymmetry of the universe. I will also discuss characteristic predictions for Kaon rare decays in the scenario of top-charm electroweak baryogenesis.

Release date 2023/07/06 Updated 2024/03/02