Unitarized Chiral Perturbation Theory in a finite volume: scalar meson sector
arXiv:1107.3988 · doi:10.1140/epja/i2011-11139-7
Abstract
We develop a scheme for the extraction of the properties of the scalar mesons f0(600), f0(980), and a0(980) from lattice QCD data. This scheme is based on a two-channel chiral unitary approach with fully relativistic propagators in a finite volume. In order to discuss the feasibility of finding the mass and width of the scalar resonances, we analyze synthetic lattice data with a fixed error assigned, and show that the framework can be indeed used for an accurate determination of resonance pole positions in the multi-channel scattering.
15 pages, 17 figures