arXiv:hep-lat/0201004·v1·High Energy Physics — Lattice
Novel fat-link fermion actions
J.M.Zanotti🇦🇺 · S.Bilson-Thompson🇦🇺 · F.D.R.Bonnet🇦🇺 · P.D.Coddington🇦🇺 · D.B.Leinweber🇦🇺 · A.G.Williams🇦🇺 · J.B.Zhang🇦🇺 · W.Melnitchouk🇦🇺 · F.X.Lee🇺🇸
Abstract
The hadron mass spectrum is calculated in lattice QCD using a novel fat-link clover fermion action in which only the irrelevant operators of the fermion action are constructed using smeared links. The simulations are performed on a 16^3 X 32 lattice with a lattice spacing of a=0.125 fm. We compare actions with n=4 and 12 smearing sweeps with a smearing fraction of 0.7. The n=4 Fat Link Irrelevant Clover (FLIC) action provides scaling which is superior to mean-field improvement, and offers advantages over nonperturbative O(a) improvement.
Comments: 5 pages, 2 figures, talk given by J.Zanotti at LHP 2001 workshop, Cairns, Australia