Hadronic decay width from finite-volume energy spectrum in lattice QCD
arXiv:1010.1390 · doi:10.1063/1.3483443
Abstract
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.
arXiv comment5 pages, 3 figures, "The XIII International Conference on Hadron Spectroscopy, Hadron 2009"