Fitting a sum of exponentials to lattice correlation functions using a non-uniform prior
High Energy Physics - Lattice
2011-02-09 v2
Abstract
Excited states are extracted from lattice correlation functions using a non-uniform prior on the model parameters. Models for both a single exponential and a sum of exponentials are considered, as well as an alternate model for the orthogonalization of the correlation functions. Results from an analysis of torelon and glueball operators indicate the Bayesian methodology compares well with the usual interpretation of effective mass tables produced by a variational procedure. Applications of the methodology are discussed.
Cite
@article{arxiv.1002.2785,
title = {Fitting a sum of exponentials to lattice correlation functions using a non-uniform prior},
author = {Robert W. Johnson},
journal= {arXiv preprint arXiv:1002.2785},
year = {2011}
}
Comments
12 pages, 8 figures, 8 tables, major revision, final version