منابع مشابه
Pinch Technique: Theory and Applications
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 lo...
متن کاملIntroduction to the Pinch Technique
These notes are a short introduction to the pinch technique. We present the oneloop calculations for basic QCD Green’s functions. The equivalence between the pinch technique and the background field method is explicitly shown at the one-loop level. We review the absorptive pinch technique in the last sections. These lectures are a compilation of relevant papers on this subject and are prepared ...
متن کاملElectroweak pinch technique to all orders
The generalization of the pinch technique to all orders in the electroweak sector of the Standard Model within the class of the renormalizable ’t Hooft gauges, is presented. In particular, both the all-order PT gauge-boson– and scalar–fermions vertices, as well as the diagonal and mixed gauge-boson and scalar self-energies are explicitly constructed. This is achieved through the generalization ...
متن کاملPinch technique self - energies and vertices to all orders in perturbation theory
Daniele Binosi and Joannis Papavassiliou Departamento de F́ısica Teórica and IFIC, Centro Mixto, Universidad de Valencia-CSIC, E-46100, Burjassot, Valencia, Spain Abstract The all-order construction of the pinch technique gluon self-energy and quark-gluon vertex is presented in detail within the class of linear covariant gauges. The main ingredients in our analysis are the identification of a sp...
متن کاملRecent Developments in the Pinch Technique ∗
Some of the most important theoretical and phenomenological aspects of the pinch technique are presented, and several recent developments are briefly reviewed. The pinch technique (PT) is an algorithm that allows the construction of modified gauge independent (g.i.) off-shell n-point functions, through the order by order rearrangement of Feynman graphs contributing to a certain physical and the...
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ژورنال
عنوان ژورنال: Physics Reports
سال: 2009
ISSN: 0370-1573
DOI: 10.1016/j.physrep.2009.05.001