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arxiv: 1107.3988 · v2 · pith:5E6MNVC6new · submitted 2011-07-20 · ✦ hep-lat · hep-ph· nucl-th

Unitarized Chiral Perturbation Theory in a finite volume: scalar meson sector

M. D\"oring , U.-G. Mei{\ss}ner , E. Oset , A. Rusetsky This is my paper
classification ✦ hep-lat hep-phnucl-th
keywords scalarchiraldatafinitelatticeschemevolumeaccurate
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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.

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