Dynamical Mass Generation in BRS Invariant Theories |
Common terms and phrases
adjoint allows approximation assumption asymptotic asymptotic fields auxiliary condition Bethe-Salpeter equation bound breaking BRS symmetry calculation called canonical Chapter charge classical commutation complete condition connection consequence conservation considered constant corresponding coupling covariant decoupling defined definite dependence describe determined dimensional dynamical mass effect energy example existence expression fact fermions follows formalism freedom function gauge fields gauge group gauge invariance gauge particles gauge theories ghost fields global gauge Goldstone boson Higgs Higgs mechanism Hilbert space identities important instability integral interaction introduced Lagrangian density limit local gauge longitudinal Lorentz massive means momentum necessary operator original parameter perturbative photons Phys physical positive possible potential present problem procedure proved quantization quantum quartet relations renormalization representation requirement result scalar scale Schwinger mechanism solution term theorem transformation University unphysical vacuum vanishing vector wave function Yang-Mills zero