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.
@article{arxiv.hep-lat/0201004,
title = {Novel fat-link fermion actions},
author = {J. M. Zanotti and S. Bilson-Thompson and F. D. R. Bonnet and P. D. Coddington and D. B. Leinweber and A. G. Williams and J. B. Zhang and W. Melnitchouk and F. X. Lee},
journal= {arXiv preprint arXiv:hep-lat/0201004},
year = {2017}
}
Comments
5 pages, 2 figures, talk given by J.Zanotti at LHP 2001 workshop, Cairns, Australia