In this proceeding, we explain a few steps for an alternative extraction of the spectral density of a two-point function (propagator) based on a discrete set of data points. We present a so-called Tikhonov regularization of this particular inverse problem. We test it on 2 cases: lattice 0++} glueball data and mock gluon data.
@article{arxiv.1301.2971,
title = {(Lattice) Propagators and Extraction of Spectral Densities},
author = {D. Dudal and O. Oliveira and P. J. Silva},
journal= {arXiv preprint arXiv:1301.2971},
year = {2013}
}
Comments
8 pages, 4 figures. Proceedings of Xth Quark Confinement and the Hadron Spectrum, October 8-12, 2012, TUM Campus Garching, Munich, Germany