Methods for Pseudoscalar Flavour-Singlet Mesons with Staggered Fermions

Details Methods for Pseudoscalar Flavour-Singlet Mesons with Staggered Fermions Methods for Pseudoscalar Flavour-Singlet Mesons with Staggered Fermions

2007-09-26

arxiv.org/abs/0709.4224v1

Phys.Rev.D77:065019,2008

Physics

High Energy Physics

High Energy Physics - Lattice

44 pages,24 Figures

Scientific paper

10.1103/PhysRevD.77.065019

We present the first 2+1 flavour lattice QCD calculations of pseudoscalar
flavour-singlet propagators using improved staggered fermions. We explore the
relevant techniques and discuss prospects for the larger scale studies now in
progress. The disconnected correlator is shown to have a highly non-Gaussian
distribution and reliable estimates of the errors require care.

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