A CP classification of dimension-six and dimension-eight SMEFT operators is combined with minimal flavor violation to reduce independent CP-violating Wilson coefficient phases to 26 and 655 respectively.
Automorphisms in Gauge Theories and the Definition of CP and P
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abstract
We study the possibilities to define CP and parity in general gauge theories by utilizing the intimate connection of these discrete symmetries with the group of automorphisms of the gauge Lie algebra. Special emphasis is put on the scalar gauge interactions and the CP invariance of the Yukawa couplings.
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Flavor and CP Symmetries in the Standard Model Effective Field Theory
A CP classification of dimension-six and dimension-eight SMEFT operators is combined with minimal flavor violation to reduce independent CP-violating Wilson coefficient phases to 26 and 655 respectively.