Exploratory study of the three-gluon vertex on the lattice
- 1 October 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 50 (7), R4247-R4251
- https://doi.org/10.1103/physrevd.50.r4247
Abstract
We define and evaluate on the lattice the amputated three-gluon vertex function in momentum space. We give numerical results for ×40 and ×40 quenched lattices at β=6.0. A good numerical signal is obtained at the price of enforcing the gauge-fixing condition with high accuracy. By comparing results from two different lattice volumes, we try to investigate the crucial issue of finite volume effects. We also outline a method for the lattice evaluation of the QCD running coupling as defined from the three-gluon vertex, while being aware that a realistic calculation will require larger β values and very high statistics.
Keywords
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