Contributions to the neutron's electric dipole moment (EDM), dₙ, are calculated using a well-constrained ansatz for the nucleon's Poincar\'e covariant Fadde'ev amplitude. The momentum-dependent quark dressing amplifies the contribution from the current-quarks' EDMs; and dressed-quark confinement and binding make distinguishable the effect of the two CP and T violating interactions: iγ₅σ_μν(p₁-p₂)_ν and γ₅(p₁+p₂)_μ, where p1,2 are the current-quarks' momenta. The value of |dₙ| obtained using the current-quark EDMs generated by a minimal three Higgs doublet model of spontaneous CP violation is close to the current experimental upper bound.
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Hecht et al. (2001) studied this question.
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