English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/9066
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Pinch technique for Schwinger-Dyson equations

AuthorsBinosi, D.; Papavassiliou, Joannis
KeywordsBackground-field Method
Abelian Gauge Theories
Quantum Chromodynamics (QCD)
Self-energies
Perturbation-theory
Effective Charge
3-point Vertex
BRST Symmetry
Nonperturbative Effects
Gauge Symmetry
Issue Date12-Mar-2007
PublisherInternational School for Advanced Studies
Institute of Physics Publishing
CitationJournal of High Energy Physics 3: 041 (2007)
JHEP03(2007)041
AbstractIn the context of scalar QED we derive the pinch technique self-energies and vertices directly from the Schwinger-Dyson equations. After reviewing the perturbative construction, we discuss in detail the general methodology and the basic field-theoretic ingredients necessary for the completion of this task. The construction requires the simultaneous treatment of the equations governing the scalar self-energy and the fundamental interaction vertices. The resulting non-trivial rearrangement of terms generates dynamically the Schwinger-Dyson equations for the corresponding Green's functions of the background field method. The proof relies on the extensive use of the all-order Ward-identities satisfied by the full vertices of the theory and by the one-particle-irreducible kernels appearing in the usual skeleton expansion. The Ward identities for these latter quantities are derived formally, and several subtleties related to the structure of the multiparticle kernels are addressed. The general strategy for the generalization of the method in a non-Abelian context is briefly outlined, and some of the technical difficulties are discussed.
Description40 pages, 11 figures.-- ISI Article Identifier: 000245922000041.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0611354
Publisher version (URL)http://dx.doi.org/10.1088/1126-6708/2007/03/041
URIhttp://hdl.handle.net/10261/9066
DOIhttp://dx.doi.org/10.1088/1126-6708/2007/03/041
ISSN1126-6708
Appears in Collections:(IFIC) Artículos
Files in This Item:
File Description SizeFormat 
Pinch_technique.pdf473,75 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.