Dressed quark-gluon vertex form factors from gauge symmetry

Abstract

We present preliminary results on the longitudinal $and$ transverse form factors of the quark-gluon vertex as functions of the incoming and outgoing quark momenta and an angle $\theta =2\pi /3$ between them. The expressions for these form factors were previously derived from Slavnov-Taylor identities, gauge covariance and multiplicative renormalizability that firmly constrain the fermion-boson vertex.

Comments: Proceedings of the 19th International Conference on Hadron Spectroscopy and Structure (Hadron 2021), 5 pages, two figures with non-transverse and transverse vertex form factors as functions of incoming and outgoing quark momenta