electron, a lepton of negative charge, found to surround the atomic nucleus in atoms of ordinary matter. Higgs boson, the particle associated with the Higgs field, that gives mass to other particles. ...electron, a lepton of negative charge, found to surround the atomic nucleus in atoms of ordinary matter. Higgs boson, the particle associated with the Higgs field, that gives mass to other particles. lepton, one of six light fundamental particles: e−,v0e,μ−,v0μ,τ−,v0τ. neutron, an uncharged baryon, found in the nucleus of atoms of ordinary matter. proton, a baryon of positive charge, found in the nucleus of atoms of ordinary matter.
