Expresses S-matrix elements in terms of on-shell-amputated n-point correlation functions: S = ∏ (−i)(∂² + m²)/√Z applied to ⟨0|T{φ…φ}|0⟩.
Expresses S-matrix elements in terms of on-shell-amputated n-point correlation functions: S = ∏ (−i)(∂² + m²)/√Z applied to ⟨0|T{φ…φ}|0⟩.