Nontrivial ghost-gluon vertex and the match of the Refined-Gribov-Zwanziger, Dyson-Schwinger equations, and lattice Yang-Mills propagators
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Publication Date
2012 -
Publisher
American Physical Society -
Citation
Dudal, D., Oliveira, O., Rodríguez Quintero, J.: "Nontrivial ghost-gluon vertex and the match of the Refined-Gribov-Zwanziger, Dyson-Schwinger equations, and lattice Yang-Mills propagators". Vol. 86, n. 10, (2012). DOI: 10.1103/PhysRevD.86.105005 -
Abstract
Either by solving the ghost propagator Dyson-Schwinger equations or through a one-loop computation in the refined Gribov-Zwanziger (RGZ) formalism, we show that a nontrivial ghost-gluon vertex is required to obtain a ghost propagator prediction compatible with the available corresponding lattice data in the SU(3) case. For the necessary gluon propagator input, we present RGZ tree-level fits which account well for the gluon lattice data. Interestingly, this propagator can be rewritten in terms of a running gluon mass. A comparison of both Dyson-Schwinger equations and RGZ results for the ghost propagator is furthermore provided. We also briefly discuss the connection between the RGZ and the operator product expansion d=2 gluon condensate. -
Project
info:eu-repo/grantAgreement/Spanish MICINN [FPA2011-23781]
info:eu-repo/grantAgreement/Junta de Andalucia [P07FQM02962]
info:eu-repo/grantAgreement/F. C. T. [PTDC/FIS/100968/2008]
Fichero | Tamaño | Formato |
| Description |
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Nontrivial.pdf | 520.7Kb | View/ | versión pre-print |
Fichero | Tamaño | Formato |
| Description |
---|---|---|---|---|
Nontrivial.pdf | 520.7Kb | View/ | versión pre-print |