7–12 Sept 2025
PSI
Europe/Zurich timezone

Discovery prospects for eEDM and nEDM in the general two Higgs doublet model

9 Sept 2025, 16:10
20m
WHGA/001 - Auditorium (PSI)

WHGA/001 - Auditorium

PSI

Oral presentation Session

Speaker

George W.S. Hou (National Taiwan University)

Description

Baryon asymmetry of the Universe offers one of the strongest hints for physics Beyond the Standard Model (BSM). Remarkably, in the general two Higgs Doublet Model (g2HDM) that possesses a second set of Yukawa matrices, one can have electroweak baryogenesis (EWBG), while the electron EDM is evaded by a natural flavor tuning that echoes SM. We show that eEDM may first emerge around 10^−30  𝑒 cm or so, followed by neutron EDM (nEDM) down to 10^−27  𝑒 cm. We illustrate a cancellation mechanism for nEDM itself, which in turn can be probed when a facility capable of pushing down to 10−28  𝑒 cm becomes available, followed by neutron EDM (nEDM) which in turn can be probed when a facility capable of pushing down to 10^−28  𝑒 cm becomes available. We illustrate a cancellation mechanism for nEDM itself, which in turn can be probed when a facility capable of pushing down to 10^−28  𝑒 cm becomes available.

Author

Dr Girish Kumar (South Carolina University)

Co-author

George W.S. Hou (National Taiwan University)

Presentation materials