Scattering Amplitudes in Standard Model(SM) Model→ Scattering AmplitudeExperiment Data Higgs production in LHC and CEPC LHC Perfect agreement with SM. Future CEPC:higher accuracy,less background noise.Requires even high loop computation of scattering amplitudes. 3Scattering Amplitudes in Standard Model (SM) Higgs production in LHC and CEPC Model Scattering Amplitude Experiment Data LHC : Perfect agreement with SM. Future CEPC : higher accuracy, less background noise. Requires even high loop computation of scattering amplitudes. 3