THE ELECTROWEAK CHIRAL LAGRANGIAN FOR THE STANDARD MODEL WITH A HEAVYHIGGS

The most general chiral lagrangian for electroweak interactions with t he complete set of SU(2)L X U(1)Y invariant operators up to dimension four is considered. The two-point and three-point functions with exter nal gauge fields are derived from this effective chiral lagrangian to one-loop order in a generic R(xi)-gauge. The same set of Green functio ns are simultaneously studied in the renormalizable standard model to one-loop order, in a R(xi)-gauge and in the large Higgs mass limit. An appropriate set of matching conditions connecting the Green functions of the two theories allows us to derive, systematically, the values o f the chiral lagrangian coefficients corresponding to the large Higgs mass limit of the standard model. These chiral parameters represent th e non-decoupling effects of a heavy Higgs particle and incorporate bot h the leading logarithmic dependence on m(H) and the next to leading c onstant contributions. Some phenomenological implications are also dis cussed.