General kinematics three-gluon vertex in Landau-gauge from quenched-lattice QCD

Pinto-Gomez F. De Soto F. Ferreira M.N. Papavassiliou J. Rodríguez-Quintero J.
Proceedings of Science
Volumen 430
2023-04-06
Citas: 1
Abstract
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).We present new results for the transversely projected three-gluon vertex from quenched lattice QCD simulations using standard Wilson action. While previous works focused in some particular kinematics such as the symmetric (q2 = r2 = p2) and soft-gluon (p = 0) cases, here we will present a detailed analysis of the bisectoral case (r2 = q2 ? p2) where the transversely projected vertex can be cast in terms of three independent tensors. The lattice data show a clear dominance of the form-factor corresponding to the tree-level tensor, whose dependence on the momenta can be almost entirely expressed in terms of the symmetric combination of the momenta s2 = (q2 + r2 + p2)/2.
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