Gauge invariant Barr-Zee type contributions to fermionic EDMs in the two-Higgs doublet models

Understand

We calculate all gauge invariant Barr-Zee type contributions to fermionic electric dipole moments (EDMs) in the two-Higgs doublet models (2HDM) with softly broken Z2 symmetry.

• We start by studying the tensor structure of h to VV' part in the Barr-Zee diagrams, and we calculate the effective couplings in a gauge invariant way by using the pinch technique.
• Then we calculate all Barr-Zee diagrams relevant for electron and neutron EDMs.
• We make bounds on the parameter space in type-I, type-II, type-X, and type-Y 2HDMs.