Aguilar, A.C.de Soto, FelicianoFerreira, M.N.Papavassiliou, J.Rodríguez-Quintero, J.2025-01-292025-01-292021-10guilar, A. C., De Soto, F., Ferreira, M. N., Papavassiliou, J., & Rodríguez-Quintero, J. (2021). Infrared facets of the three-gluon vertex. Physics Letters. B, 818, 136352-. https://doi.org/10.1016/j.physletb.2021.13635210.1016/J.PHYSLETB.2021.136352https://hdl.handle.net/10433/22788We present novel lattice results for the form factors of the quenched three-gluon vertex of QCD, in two special kinematic configurations that depend on a single momentum scale. We consider three form factors, two associated with a classical tensor structure and one without tree-level counterpart, exhibiting markedly different infrared behaviors. Specifically, while the former display the typical suppression driven by a negative logarithmic singularity at the origin, the latter saturates at a small negative constant. These exceptional features are analyzed within the Schwinger-Dyson framework, with the aid of special relations obtained from the Slavnov-Taylor identities of the theory. The emerging picture of the underlying dynamics is thoroughly corroborated by the lattice results, both qualitatively as well as quantitatively.application/pdfenAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/QCD Three-gluon vertex Lattice QCD Schwinger-Dyson equationsjournal articleopen access