RT Journal Article
T1 Infrared facets of the three-gluon vertex
A1 Aguilar, A.C.
A1 de Soto, Feliciano
A1 Ferreira, M.N.
A1 Papavassiliou, J.
A1 Rodríguez-Quintero, J.
K1 QCD Three-gluon vertex Lattice QCD Schwinger-Dyson equations
AB We 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.
PB ScienceDirect
YR 2021
FD 2021-10
LK https://hdl.handle.net/10433/22788
UL https://hdl.handle.net/10433/22788
LA en
NO guilar, 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.2021.136352
NO Departamento de Sistemas Físicos, Químicos y Naturales
DS RIO
RD May 9, 2026