First sighting of the Higgs at work

摘要

Hard at work, Higgs? A rare kind of particle interaction at the Large Hadron Collider has given us our first glimpse of the Higgs boson doing what the Higgs boson does. The Higgs was dreamed up to explain why some force-carrying particles such as the W and Z bosons have mass, while others such as the photon do not. For 50 years, it was the missing piece in the standard model of particle physics, which predicts how fundamental particles interact.