2011/11/06 by K. Hornbostel, G. P. Lepage, C. T. H. Davies +3 · 1 citation
Physics and Astronomy · #hep-lat
paper · pdf · doi:10.1103/physrevd.85.031504
5 pages, 4 figures
arxiv created 2011/11/06 · arxiv updated 2013/05/29
We illustrate a technique for fitting lattice QCD correlators to sums of exponentials that is significantly faster than traditional fitting methods --- 10--40 times faster for the realistic examples we present. Our examples are drawn from a recent analysis of the Upsilon spectrum, and another recent analysis of the D -> pi semileptonic form factor. For single correlators, we show how to simplify traditional effective-mass analyses.