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

  • M. Döring
  • U. -G. Meißner
  • E. Oset
  • A. Rusetsky
Regular Article - Theoretical Physics

Abstract

We develop a scheme for the extraction of the properties of the scalar mesons f 0(600) , f 0(980) , and a 0(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 multichannel scattering.

Keywords

Phase Shift Lattice Data Pole Position Scatter Phase Shift Relativistic Propagator 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • M. Döring
    • 1
  • U. -G. Meißner
    • 1
    • 2
  • E. Oset
    • 3
  • A. Rusetsky
    • 1
  1. 1.Helmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical PhysicsUniversität BonnBonnGermany
  2. 2.Forschungszentrum Jülich, Jülich Center for Hadron PhysicsInstitut für Kernphysik (IKP-3) and Institute for Advanced Simulation (IAS-4)JülichGermany
  3. 3.Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSICInstitutos de Investigación de PaternaValenciaSpain

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