The standard approach to determine the parameters of a resonance is based on the study of the volume dependence of the energy spectrum. In this work we study a non-linear sigma model coupled to a scalar field in which a resonance emerges. Using an analysis method introduced recently, based on the concept of probability distribution, it is possible to determine the mass and the width of the resonance.
@article{arxiv.1010.1390,
title = {Hadronic decay width from finite-volume energy spectrum in lattice QCD},
author = {Pietro Giudice and Mike Peardon},
journal= {arXiv preprint arXiv:1010.1390},
year = {2011}
}
Comments
5 pages, 3 figures, "The XIII International Conference on Hadron Spectroscopy, Hadron 2009"