Electromagnetic form factors with FLIC fermions
AbstractAbstract
[en] The Fat-Link Irrelevant Clover (FLIC) fermion action provides a new form of nonperturbative O(a) improvement and allows efficient access to the light quark-mass regime. FLIC fermions enable the construction of the nonperturbatively O(a)-improved conserved vector current without the difficulties associated with the fine tuning of the improvement coefficients. The simulations are performed with an O(a2) mean-field improved plaquette-plus-rectangle gluon action on a 203 x 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
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Source
LATTICE 2003: 21. international symposium on lattice field theory; Tsukuba, Ibaraki (Japan); 15-19 Jul 2003; S0920563203025581; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Literature Type
Conference
Journal
Nuclear Physics. B, Proceedings Supplements; ISSN 0920-5632; ; CODEN NPBSE7; v. 129-130(3); p. 287-289
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