arXiv:1301.2971·v1·High Energy Physics — Lattice
(Lattice) Propagators and Extraction of Spectral Densities
D.Dudal · O.Oliveira · P.J.Silva
Abstract
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.
Comments: 8 pages, 4 figures. Proceedings of Xth Quark Confinement and the Hadron Spectrum, October 8-12, 2012, TUM Campus Garching, Munich, Germany