caa a22 4500 445872233 CHVBK 20180317145515.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1140/epja/i2011-11163-7 doi (NATIONALLICENCE)springer-10.1140/epja/i2011-11163-7 Dynamical coupled-channel approaches on a momentum lattice [Elektronische Daten] [M. Döring, J. Haidenbauer, U. Meißner, A. Rusetsky] Dynamical coupled-channel approaches are a widely used tool in hadronic physics that allow to analyze different reactions and partial waves in a consistent way. In such approaches the basic interactions are derived within an effective Lagrangian framework and the resulting pseudo-potentials are then unitarized in a coupled-channel scattering equation. We propose a scheme that allows for a solution of the arising integral equation in discretized momentum space for periodic as well as anti-periodic boundary conditions. This permits to study finite-size effects as they appear in lattice QCD simulations. The new formalism, at this stage with a restriction to S -waves, is applied to coupled-channel models for the σ(600), f 0(980), and a 0(980) mesons, and also for the Λ(1405) baryon. Lattice spectra are predicted. SIF, Springer-Verlag Berlin Heidelberg, 2011 Döring M. Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany aut Haidenbauer J. Institute for Advanced Simulation and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut Meißner U. Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany aut Rusetsky A. Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany aut The European Physical Journal A Springer Berlin Heidelberg 47/12(2011-12-01), 1-7 1434-6001 47:12<1 2011 47 10050 https://doi.org/10.1140/epja/i2011-11163-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epja/i2011-11163-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Döring M. Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany aut NATIONALLICENCE 700 1- Haidenbauer J. Institute for Advanced Simulation and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut NATIONALLICENCE 700 1- Meißner U. Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany aut NATIONALLICENCE 700 1- Rusetsky A. Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany aut NATIONALLICENCE 773 0- The European Physical Journal A Springer Berlin Heidelberg 47/12(2011-12-01), 1-7 1434-6001 47:12<1 2011 47 10050 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer