Broken symmetry electroweak theory

The second Higgs field acts in such a way that if the vacuum expectation value is zero, ( ) = 0, then the symmetry breaking mechanism effectively collapses to the Higgs mechanism of the standard SU(2) x U(l) electroweak theory. The result is a vector electromagnetic gauge theory 0(3)/> and a broken chiral SU(2) weak interaction theory. The mass of the vector boson sector is in the A(3) boson plus the W and Z° particles. 

The modem theory of creation begins at Planck time (10-43 seconds) when the universe was very hot and supersymmetric. As the universe cooled supersymmetry was spontaneously-broken into the Poincarfe symmetry (gravity) and the grand symmetry, SU(5) (the grand force). On further cooling SU(5) was spontaneously broken into the electroweak force SU(2) U(1) and the strong force... 

---