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Type: Journal article
Title: Electromagnetic Form Factors with FLIC fermions
Author: Zanotti, J.
Boinepalli, S.
Leinweber, D.
Williams, A.
Citation: Nuclear Physics B-Proceedings Supplements, 2004; 128:233-239
Publisher: Elsevier Science BV
Issue Date: 2004
ISSN: 0920-5632
Statement of
J.M. Zanotti, S. Boinepalli, D.B. Leinweber, A.G. Williams and J.B. Zhang
Abstract: The Fat-Link Irrelevant Clover (FLIC) fermion action provides a new form of nonperturbative Image (a) improvement and allows efficient access to the light quark-mass regime. FLIC fermions enable the construction of the nonperturbatively Image (a)-improved conserved vector current without the difficulties associated with the fine tuning of the improvement coefficients. The simulations are performed with an Image (a2) mean-field improved plaquette-plus-rectangle gluon action on a 203 × 40 lattice with a lattice spacing of 0.128 fm, enabling the first simulation of baryon form factors at light quark masses on a large volume lattice. Magnetic moments, electric charge radii and magnetic radii are extracted from these form factors, and show interesting chiral nonanalytic behavior in the light quark mass regime.
Description: Proceedings of the 2nd Cairns Topical Workshop on Lattice Hadron Physics Copyright © 2004 Published by Elsevier B.V.
RMID: 0020083114
DOI: 10.1016/S0920-5632(03)02483-6
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Appears in Collections:Physics publications

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