Search results for "Abelian Gauge Theories"

showing 2 items of 2 documents

Pinch Technique: Theory and Applications

2009

We review the theoretical foundations and the most important physical applications of the Pinch Technique (PT). This general method allows the construction of off-shell Green’s functions in non-Abelian gauge theories that are independent of the gauge-fixing parameter and satisfy ghost-free Ward identities. We first present the diagrammatic formulation of the technique in QCD, deriving, at one loop, the gauge independent gluon self-energy, quark–gluon vertex, and three-gluon vertex, together with their Abelian Ward identities. The generalization of the PT to theories with spontaneous symmetry breaking is carried out in detail, and the profound connection with the optical theorem and the disp…

High Energy Physics - TheoryParticle physicsSpontaneous symmetry breakingGluonsHigh Energy Physics::LatticeFOS: Physical sciencesGeneral Physics and AstronomyDynamical mass generationGauge-invarianceSchwinger–Dyson equationsRenormalizationTheoretical physicsQuantization (physics)symbols.namesakeHigh Energy Physics::TheoryHigh Energy Physics - Phenomenology (hep-ph)Non-Abelian gauge theoriesFeynman diagramGauge theoryGauge bosonsQuantum chromodynamicsPhysicsBackground field methodGreens functionsElectroweak interactionHigh Energy Physics::PhenomenologyFísicaHigh Energy Physics - PhenomenologyHigh Energy Physics - Theory (hep-th)symbols
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Pinch technique for Schwinger-Dyson equations

2007

40 pages, 11 figures.-- ISI Article Identifier: 000245922000041.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0611354

Nuclear and High Energy PhysicsParticle physicsGeneralizationStructure (category theory)FOS: Physical sciencesContext (language use)Skeleton (category theory)Theoretical physicsHigh Energy Physics - Phenomenology (hep-ph)Self-energiesBackground-field MethodAbelian Gauge TheoriesPhysicsBackground field methodScalar (physics)FísicaPerturbation-theoryEffective ChargeFundamental interaction3-point VertexHigh Energy Physics - PhenomenologyNonperturbative EffectsQuantum Chromodynamics (QCD)Gauge SymmetryPinchBRST SymmetryJournal of High Energy Physics
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