Symmetry broken electroweak Lagrangian

Now we have collected all ingredients to write down for the electroweak sector of the standard model the Langrange density that is obtained after spontaneous breaking of the S(7(2)l x C/(1)y gauge symmetry  

The first line describes the selfinteracting massive Higgs particles, the second line the free vector gauge fields Wfj, x) and the third and forth 

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