Widespread agreement on elementary particles (proton, neutron, electron, photon)
Continued discovery of more and more members of the elementary “particle zoo”
Active development of new models (e.g. “eightfold way”)
Acceptance of Standard Model, explaining existing anomalies in a new theoretical framework, and predicting the existence of undiscovered particles
Experiments confirming predictions of the Standard Model, mainly through observation of predicted particles(top quark, tau neutrino, Higgs boson)
See Pickering (1984) “Constructing Quarks: A Sociological History of Particle Physics”