CP violation in gauged U(1)

Nov 14, 2022, 4:40 PM
20m
The Grand Sumorum, Jeju

The Grand Sumorum, Jeju

114, Maksukpo-ro, Seogwipo-si, Jeju Special Self-Governing Province (1513, Beophwan-dong)

Speaker

Toshinori Matsui (KIAS)

Description

Recently ATLAS provided the constraint in an analysis of the Zjj channel
which interprets measurements of dimension six CP-violating operators in SM
effective field theory. If confirmed, this may be a signal of new CP violation beyond
the Kobayashi-Maskawa phase in the SM. Then it would be an important and
urgent question whether this new CP violation can explain the baryon asymmetry
of the Universe by electroweak baryogenesis. We discuss a model which has
CP-violating interactions at the electroweak scale.

Presentation materials