Novel fat-link fermion actions

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 × 32 lattice with a lattice spacing of a = 0.125 fm. We compare...

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Bibliographic Details
Published in:Nuclear physics. Section B, Proceedings supplement Proceedings supplement, 2002-05, Vol.109 (1), p.101-105
Main Authors: Zanotti, J.M, Bilson-Thompson, S, Bonnet, F.D.R, Coddington, P.D, Leinweber, D.B, Williams, A.G, Zhang, J.B, Melnitchouk, W, Lee, F.X
Format: Article
Language:English
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Summary: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 × 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.
ISSN:0920-5632
1873-3832
DOI:10.1016/S0920-5632(02)01397-X