Methods for Pseudoscalar Flavour-Singlet Mesons with Staggered Fermions

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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.
44 pages,24 Figures

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High Energy Physics - Lattice

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http://salesiana.dossiersoluciones.com/handle/123456789/193734

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0709.4224
 http://arxiv.org/abs/0709.4224
 Phys.Rev.D77:065019,2008
 doi:10.1103/PhysRevD.77.065019

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arXiv