Status of alpha_s determinations from the non-perturbatively renormalised three-gluon vertex

B. Alles; H. Panagopoulos; C. Parrinello; C. Pittori; D. G. Richards

doi:10.1016/S0920-5632(97)00734-2

Status of alpha_s determinations from the non-perturbatively renormalised three-gluon vertex

High Energy Physics - Lattice 2009-10-30 v1 High Energy Physics - Phenomenology

Authors: B. Alles , H. Panagopoulos , C. Parrinello , C. Pittori , D. G. Richards

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Abstract

We demonstrate the feasibility of computing alpha_s from the lattice three-gluon vertex in the Landau gauge. Data from 16^4 and 24^4 quenched lattices at beta=6.0 are presented. Our main result is that 2-loop asymptotic scaling is observed for momenta in the range 1.8-2.3 Gev, where lattice artifacts appear to be under control.

Keywords

alpha_s three-gluon vertex Landau gauge non-perturbative renormalization lattice QCD asymptotic scaling

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@article{arxiv.hep-lat/9710053,
  title  = {Status of alpha_s determinations from the non-perturbatively renormalised three-gluon vertex},
  author = {B. Alles and H. Panagopoulos and C. Parrinello and C. Pittori and D. G. Richards},
  journal= {arXiv preprint arXiv:hep-lat/9710053},
  year   = {2009}
}

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3 pages, LaTeX, 2 PostScript pictures and style file included. To appear in the proceedings of LAT97

Status of alpha_s determinations from the non-perturbatively renormalised three-gluon vertex

Abstract

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