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arXiv · hep-lat/9908056

Gluon propagator, triple gluon vertex and the QCD coupling constant

D. Becirevic·Ph. Boucaud·J. P. Leroy·J. Micheli·O. Pene·J. Rodriguez-Quintero·C. Roiesnel
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Abstract

We study the UV-scaling of the flavorless gluon propagator in the Landau gauge in an energy window up to 9 GeV. Dominant hypercubic lattice artifacts are eliminated. A large set of renormalization schemes is used to test asymptotic scaling. We compare with our results obtained directly from the triple gluon vertex. We end-up with Λ_{\bar{\rm{MS}}} = 318(12)(5) MeV and 292(5)(15) MeV respectively for these two methods, compatible which each other but significantly above the Schrodinger method estimate.

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D. Becirevic, Ph. Boucaud, J. P. Leroy, J. Micheli, O. Pene, J. Rodriguez-Quintero, C. Roiesnel. 1999-08-31. Gluon propagator, triple gluon vertex and the QCD coupling constant. https://doi.org/10.1016/s0920-5632(00)91610-4

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