21–25 Oct 2024
CERN
Europe/Zurich timezone

CP-violation in 2HDM facing future EDM and Collider Tests

22 Oct 2024, 14:20
20m
503/1-001 - Council Chamber (CERN)

503/1-001 - Council Chamber

CERN

162
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Speaker

Dr Ying-nan Mao (Wuhan University of Technology)

Description

In this talk, I will choose 2HDM with soft $Z_2$ symmetry as an example, to discuss its CP-violation facing future EDM and collider tests. Currently, a large CP-phase ~$\mathcal{O}(0.1)$ is still allowed in a narrow window around $\tan\beta\sim1$ due to the cancellation in the electron EDM, and thus the neutron EDM sets the strictest constraint on the phase. Future EDM experiments with differnet materials will be able to limit it to $\mathcal{O}(10^{-2})$ even the cancellation still appears. Another cancellation region with large $\tan\beta$ is limited by the Hg EDM, since in this region the relative theoretical uncertainties are small enough. Future collider tests are good complementary cross-checks on CP-violation in this model. We discuss the CP-violation in heavy neutral and charged scalar sectors at future $e^+e^-$ or $\mu^+\mu^-$ colliders.

Author

Dr Ying-nan Mao (Wuhan University of Technology)

Presentation materials