(Lattice) Propagators and Extraction of Spectral Densities

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.

8 pages, 4 figures. Proceedings of Xth Quark Confinement and the Hadron Spectrum, October 8-12, 2012, TUM Campus Garching, Munich, Germany

References in corpus (2)

• On the analytic structure of scalar glueball operators at Born level
• Examining the Analytic Structure of Green's Functions: Massive Parallel Complex Integration using GPUs