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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Infrared facets of the three-gluon vertex

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Author(s):
Aguilar, A. C. [1] ; De Soto, F. [2] ; Ferreira, M. N. [1] ; Papavassiliou, J. [3, 4, 5] ; Rodriguez-Quintero, J. [6]
Total Authors: 5
Affiliation:
[1] Univ Estadual Campinas, Inst Phys Gleb Wataghin, UNICAMP, BR-13083859 Campinas, SP - Brazil
[2] Univ Pablo de Olavide, Dept Sistemas Fis Quim & Nat, Seville 41013 - Spain
[3] Univ Valencia, Dept Theoret Phys, E-46100 Valencia - Spain
[4] Univ Valencia, IFIC, E-46100 Valencia - Spain
[5] CSIC, E-46100 Valencia - Spain
[6] Univ Huelva, Fac Ciencias Experimentales, Ctr Estudios Avanzados Fis Mat & Comp, Dept Ciencias Integradas, Huelva 21071 - Spain
Total Affiliations: 6
Document type: Journal article
Source: Physics Letters B; v. 818, JUL 10 2021.
Web of Science Citations: 5
Abstract

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. (C) 2021 The Author(s). Published by Elsevier B.V. (AU)

FAPESP's process: 20/12795-1 - Evolution of the energy-momentum tensor during the pre-equilibrium phase of a heavy-ion collision
Grantee:Antonio Maurício Soares Narciso Ferreira
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 17/05685-2 - Hadronic physics in high energy nuclear collisions
Grantee:Jun Takahashi
Support Opportunities: Special Projects