SU(2) Potentials from Large Lattices

The UKQCD Collaboration; S. P. Booth; A. Hulsebos; A. C. Irving; A. McKerrell; C. Michael; P. S. Spencer; P. W. Stephenson

doi:10.1016/0550-3213(93)90023-I

SU(2) Potentials from Large Lattices

High Energy Physics - Lattice 2011-02-19 v1

Authors: The UKQCD Collaboration , S. P. Booth , A. Hulsebos , A. C. Irving , A. McKerrell , C. Michael , P. S. Spencer , P. W. Stephenson

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Abstract

We measure accurate values of the inter-quark potentials on a $48^{3}56$ lattice with SU(2) pure gauge theory at $\beta =2.85$ . The scale is set by extracting the string tension - we obtain ${\sqrt K}a=0.063(3)$ at $\beta =2.85.$ From a careful study of the small- $R$ potentials in the region 2 GeV $< R^{-1} < 5$ GeV, we extract a running coupling constant and estimate the scale $\Lambda _{\msbar} = 272(24)$ MeV.

Keywords

lattice gauge theory qcd coupling constant

Cite

@article{arxiv.hep-lat/9209007,
  title  = {SU(2) Potentials from Large Lattices},
  author = {The UKQCD Collaboration and S. P. Booth and A. Hulsebos and A. C. Irving and A. McKerrell and C. Michael and P. S. Spencer and P. W. Stephenson},
  journal= {arXiv preprint arXiv:hep-lat/9209007},
  year   = {2011}
}

Comments

22 pages, 4 PostScript figures (attached), Liverpool preprint LTH 284

SU(2) Potentials from Large Lattices

Abstract

Keywords

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