On the Higgs Boson Subatomic Particle:
What if we don't find it?
Most professional physicists would say that finding the Higgs in precisely the form that theory predicts would actually be a disappointment. Large-scale projects such as the LHC are built with the aim of expanding knowledge, and confirming the existence of the Higgs right where we expect it - while it would be a triumph for our understanding of physics - would be far less exciting than not finding it. If future studies definitively confirm that the Higgs does not exist, much if not all of the Standard Model would have to be rewritten. That in turn would launch new lines of enquiry that would almost certainly revolutionise our understanding of the Universe, in much the same way as something missing in physics a century ago led to the development of the revolutionary ideas of quantum mechanics.
Q&A: The Higgs Boson, BBC with Scientists at LHC, December 13, 2011