query: $1/4$ coefficient in QED Lagrangian
positive_passages.docid: 129289
positive_passages.text: What is the origin of the factor of $-1/4$ in the Maxwell Lagrangian?
negative_passages.docid: 17414
negative_passages.text: Lagrangian of an effective potential
negative_passages.docid: 113610
negative_passages.text: Spinor field normalisation from poles in the propagator
negative_passages.docid: 141949
negative_passages.text: Tree level QFT and classical fields/particles
negative_passages.docid: 36691
negative_passages.text: Parameters on $SU(4)$ and $SU(2)$
negative_passages.docid: 29329
negative_passages.text: Does a four-divergence extra term in a Lagrangian density matter to the field equations?
negative_passages.docid: 21917
negative_passages.text: Mathematical Prerequisites for QFT
negative_passages.docid: 89528
negative_passages.text: Formalizing Quantum Field Theory
negative_passages.docid: 130830
negative_passages.text: Counting degrees of freedom for gravitational waves as a gauge field
negative_passages.docid: 25364
negative_passages.text: Supersymmetry in Quantum Field Theory
negative_passages.docid: 40340
negative_passages.text: How general is the Lagrangian quantization approach to field theory?
negative_passages.docid: 115012
negative_passages.text: Klein-Gordon inner product
negative_passages.docid: 116427
negative_passages.text: $(c^{\mu}\partial_{\mu}-m)\phi(x)=0$ not Lorentz-invariant?
negative_passages.docid: 87914
negative_passages.text: Contradictory result for scalar-field propagator from Feynman rules and LSZ formula
negative_passages.docid: 105572
negative_passages.text: Independent Variables of a Lagrangian
negative_passages.docid: 154454
negative_passages.text: Why are $L_4$ and $L_5$ lagrangian points stable?
negative_passages.docid: 94230
negative_passages.text: I want to understand a trick in the derivation of the Schwinger-Dyson equations