Peter Higgs Properties Discovery Higgs Boson Experiments Observation of Higgs Boson Confirmation Study Study Capabilities Elementary Particle Standard Model Nobel Prize Subatomic Particles Large Hadron Collider Theory Scientific Research Physicist Death Nobel Prize in Physics CERN Significance François Englert ATLAS Collaboration Impact Higgs Mechanism Legacy Mass Origin Implications Predictions Field Search Symmetry Breaking Primordial Black Holes CERN Discovery Dark Matter Higgs Field