Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/106065
Title: | The soft-gluon limit and the infrared enhancement of the quark-gluon vertex | Authors: | Oliveira, Orlando Frederico, Tobias de Paula, Wayne |
Issue Date: | 2020 | Publisher: | Springer Nature | Serial title, monograph or event: | European Physical Journal C | Volume: | 80 | Issue: | 5 | Abstract: | The Schwinger–Dyson quark equation (SDE) combined with results from lattice simulation for the propagators are used to obtain information on the quark-gluon vertex, taking into account the recent full QCD lattice results for the soft-gluon limit. Its inclusion leads to a clear enhancement of the infrared quark-gluon vertex.We also find that the relative contribution of the quark-ghost kernel to the quarkgluon vertex in the infrared region does not follow the rules from the perturbative analysis of the ultraviolet region. This shows that forQCDthe intuition based on perturbation theory does not apply to the full momentum range. The framework developed in the current work provides analytical expressions for all the longitudinal components of vertex taken into account. | URI: | https://hdl.handle.net/10316/106065 | ISSN: | 1434-6044 1434-6052 |
DOI: | 10.1140/epjc/s10052-020-8037-0 | Rights: | openAccess |
Appears in Collections: | I&D CFis - Artigos em Revistas Internacionais |
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The-softgluon-limit-and-the-infrared-enhancement-of-the-quarkgluon-vertexEuropean-Physical-Journal-C.pdf | 2.36 MB | Adobe PDF | View/Open |
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