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QCD on coarse lattices

Name: QCD on coarse lattices
Keywords: High Energy Physics - Lattice, High Energy Physics - Lattice (hep-lat), FOS: Physical sciences

descriptionPublicationkeyboard_double_arrow_right Article , Part of book or chapter of book , Preprint , Other literature type 01 Apr 1995Embargo end date: 01 Jan 1994 English Publisher:Elsevier BVJournal:Nuclear Physics B - Proceedings Supplements, volume 42, pages 787-789 (issn: 0920-5632,

Authors: Paul B. Mackenzie; G. Hockney; Peter Lepage; W. Dimm; Mark G. Alford;

doi: 10.1016/0920-5632(95)00382-j , 10.1007/0-306-47056-x_4 , 10.48550/arxiv.hep-lat/9412035

arXiv: http://arxiv.org/abs/hep-lat/9412035

QCD on coarse lattices

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Abstract

We show that the perturbatively-improved gluon action for QCD, once it is tadpole-improved, gives accurate results even with lattice spacings as large as 0.4~fm. {\em No\/} tuning of the couplings is required. Using this action and lattice spacing, we obtain a static potential that is rotationally invariant to within a few percent, the spin-averaged charmonium spectrum accurate to within 30--40~MeV, and scaling to within 5--10\%. We demonstrate that simulations on coarse lattices are several orders of magnitude less costly than simulations using current methods.

4 pages

Related Organizations

Cornell University
United States
Fermilab
United States

Keywords

High Energy Physics - Lattice, High Energy Physics - Lattice (hep-lat), FOS: Physical sciences

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Top 10%

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