High Energy / Nuclear Theory / RIKEN Seminars

Zhen Liu "[HET seminar] Enhancing or Delaying Electroweak Phase Transitions via Simple Scalar Extensions"

Name: Zhen Liu "[HET seminar] Enhancing or Delaying Electroweak Phase Transitions via Simple Scalar Extensions"
Start: 2021-10-28T13:00:00-04:00
End: 2021-10-28T14:00:00-04:00
Location: No location set

Thursday 28 Oct 2021, 13:00 → 14:00 US/Eastern

https://bnl.zoomgov.com/j/1612154637?pwd=Z2E5RWhqRXBkMnExQzc3eVBTWTg3UT09

Description

Strongly first-order electroweak phase transition is an important component for (Electroweak-)Baryogenesis. In this talk, I will show two simple scalar extensions of the SM that change the nature of electroweak phase transitions significantly, which is realized via some interesting mechanisms. The first example is in the spontaneous Z2 breaking singlet extension of the SM relies on a near criticality arrangement of the vacuum. The second example is via a rely upon EW broken phases in different Higgs sectors. Their pheno consequences and implications will also be discussed.