Linked from
The 90 pages that link to Standard Model, each with the reason it gives.
Group theoryRelated: Its gauge symmetries are described using Lie groups.
KaonRelated: Kaon measurements test its predictions for quark mixing and CP violation.
Particle decayRelated: Its interaction rules predict many observed particle-decay channels.
Neutral kaonRelated: Its quark mixing framework predicts CP-violating effects in kaon processes.
Arthur B. McDonaldRelated: Neutrino mass revealed a limitation of its original formulation.