Field Theory |
Common terms and phrases
1PI Green functions a²s amplitudes anticommuting antisymmetric appendix bosonic classical equations collective index color factor color weight combinatoric combinatoric factors Compton scattering Compute connected Green functions covariant gauges decouple defined degrees of freedom derivatives diagrammatic DS equations dw[J Dyson-Schwinger equations effective action example Exercise extra term fermionic generating functionals fermionic loop Feynman diagrams Feynman rules formalism four-gluon vertex full Green functions gauge fixing gauge invariance gaugeon insertion Gaussian integral Ghoulies gluon gluon propagator hermitian Hint interactions Jacobi identities kl mn Lie algebra long-leggety beasties loop expansion mass-shell matrix Minkowski indices NORDITA notation path integral perturbation expansion photon physical polarization propagators and vertices quantum mechanics quark Quefithe rewrite self-energy sources spacetime spin supersymmetry symmetry three-gluon vertex tion transformation transverse vacuum bubbles vanish vertex Ward identity Ward identities Ward identity 6.7 μν μν аф