Fast Fits for Lattice QCD Correlators
High Energy Physics - Lattice
2013-05-30 v1
Abstract
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.
Cite
@article{arxiv.1111.1363,
title = {Fast Fits for Lattice QCD Correlators},
author = {K. Hornbostel and G. P. Lepage and C. T. H. Davies and R. J. Dowdall and H. Na and J. Shigemitsu},
journal= {arXiv preprint arXiv:1111.1363},
year = {2013}
}
Comments
5 pages, 4 figures