Simple Observables from Fat Link Fermion Actions

Details Simple Observables from Fat Link Fermion Actions Simple Observables from Fat Link Fermion Actions

1999-03-02

arxiv.org/abs/hep-lat/9903006v1

Phys.Rev. D60 (1999) 094501

Physics

High Energy Physics

High Energy Physics - Lattice

22 pages, 12 postscript figures, Revtex plus epsf

Scientific paper

10.1103/PhysRevD.60.094501

A comparison is made of the (quenched) light hadron spectrum and of simple matrix elements for a hypercubic fermion action (based on a fixed point action) and the clover action, both using fat links, at a lattice spacing a= 0.18 fm. Renormalization constants for the naive and improved vector current and the naive axial current are computed using Ward identities. The renormalization factors are very close to unity, and the spectroscopy of light hadrons and the pseudoscalar and vector decay constants agree well with simulations at smaller lattice spacings (and with experiment).

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