Abstract

We study the possible mixings between gauge vector fields and scalar fields through their self-energies, arising in models with two Higgs doublets. We derive the relevant set of Schwinger–Dyson equations and the Ward identities that compel the longitudinal parts of the field propagators. A linear Rξ gauge is used and the results are given at all orders in perturbative theory, and some particular aspects of the one-loop case are stressed.

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