  Beginning from an effective theory in eight dimensions, Macias, Camacho and
Matos proposed an effective model for the electroweak part of the Standard
Model of particles in curved spacetime. Using this model, we investigate the
cosmological consequences of the electroweak interaction in the early universe.
We use the approximation that, near the Planck epoch, the Yang-Mills fields
behave like a perfect fluid. Then we recover the field equations of
inflationary cosmology, with the Higgs field directly related to the inflaton.
We present some qualitative discussion about this and analyse the behavior of
isospin space using some known exact solutions.
