CP-violating top-Higgs coupling in SMEFT

Vernon Barger, Kaoru Hagiwara, Ya-Juan Zheng

The total cross section of the process ${\mu }^{-}{\mu }^{+}\to {\nu }_{\mu }{\bar{\nu }}_{\mu }t\bar{t}H$ has strong dependence on the CP phase $\xi$ of the top Yukawa coupling, where the ratio of $\xi =\pi$ and $\xi =0$…