higgs boson question

captain

If the higgs boson is never found does that mean that the theory of weak interactions is partly useless because there is no local gauge invariance? If that this not the case then I really want to know what does it entail for the standard model and what would possibly have to be done to fix this error with the theory?

chris_183

to attain local gauge invariance a simple term is added into the relativistic wave equations which exactly cancels the mistakes caused by the equations' derivative operator. the term is: qA(x)φ(x)
what the higgs boson does is to make stop collision probabilities becoming greater than 1 (which is impossible). also, through it's non zero expectation value (the expectation value is the average value it holds at any point in a vacuum) it spontaneously breaks electroweak gauge symmetry giving mass to gauge bosons