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arxiv: 1311.4704 · v3 · pith:L5MAFEDUnew · submitted 2013-11-19 · ✦ hep-ph

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

Tomohiro Abe , Junji Hisano , Teppei Kitahara , Kohsaku Tobioka This is my paper
classification ✦ hep-ph
keywords edmsbarr-zeecalculateelectrongaugehdmsinvariantneutron
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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. The electron and neutron EDMs are complementary to each other in discrimination of the 2HDMs. Type-II and type-X 2HDMs are strongly constrained by recent ACME experiment's result, and future experiments of electron and neutron EDMs may search O(10) TeV physics.

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