# if Higgs boson stopped existing, what would happen? [duplicate]

If The Higgs boson and field ceased to exist (starting now), then would particles zip around at the speed of light, or would they gain mass from $$E=mc^2$$?

Or would something else happen?

If the Higgs Boson somehow stopped existing, leptons like the electron, and the gauge bosons of electroweak theory would lose their mass. As $$m = 0$$ for these particles they would have no energy from $$E = mc^2$$. In addition, electroweak symmetry would be restored, so there would no longer be a separate electromagnetic force and weak force.