Fifty years ago physicists, pondering how particles get mass, had suggested that there is another field, but one with no direction and the same value everywhere throughout the universe.
Dr. Higgs said, “If that field exists, there should be a particle that goes with it,” just as the electromagnetic field, light, has a particle, the photon. The Higgs particle is heavier than a silver atom but trillions of times smaller. Perhaps it has no size at all! It disintegrates to lighter particles immediately and has no practical applications, so what’s the big deal?