2007/09/26 by Eric B. Gregory, Alan C. Irving, A.C. Irving +2 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.1103/physrevd.77.065019
published as Phys.Rev.D77:065019,2008 · 44 pages,24 Figures
arxiv created 2007/09/26 · openalex publication_date 2008/03/19 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present the first 2+1 flavor lattice QCD calculations of pseudoscalar flavor-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.