Quark-gluon vertex in arbitrary kinematics

Details Quark-gluon vertex in arbitrary kinematics Quark-gluon vertex in arbitrary kinematics

2004-08-19

arxiv.org/abs/hep-lat/0408032v1

Nucl.Phys.Proc.Suppl.141:244-249,2005

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 8 figures, talk by JIS at QCD Down Under, Adelaide, 10-19 March 2004

Scientific paper

10.1016/j.nuclphysbps.2004.12.03

We compute the quark-gluon vertex in quenched lattice QCD, in the Landau gauge using an off-shell mean-field O(a)-improved fermion action. The complete vertex is computed in two specific kinematical limits, while the Dirac-vector part is computed for arbitrary kinematics. We find a nontrivial and rich tensor structure, including a substantial infrared enhancement of the interaction strength regardless of kinematics.

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