feynlag.models.higgs_lagrangian¶ feynlag.models.higgs_lagrangian(H, lam, mu2)[source]¶ The Higgs kinetic + potential terms, as {sector: expr}. L ⊃ (D_μH)†(D^μH) − V, V = −μ² H†H + λ (H†H)². The library stores L ⊃ −V in the potential sector.