Abstract
It is conjectured that the lack of chiral gauge symmetry-preserving regulator is signalling a genuine quantum effect which breaks chiral gauge symmetries and generates masses for gauge bosons. This idea is applied to an SU(3) C ×SU(2) L ×U(1) Y model. It is shown that the dynamics of chiral fermions can generate masses for the W and Z bosons with the correct mass ratio. Chiral gauge theories without elementary scalars are found to be related to effective gauge theories with group element valued scalar fields. Furhtermore, massless fermions can exist in such theories.
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