Mainz 2012 – wissenschaftliches Programm
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PV: Plenarvorträge
PV 4: PV IV
PV 4.1: Hauptvortrag
Dienstag, 20. März 2012, 10:00–10:30, RW 1
Finite Volume Methods for Hadron Resonances — •Michael Döring — Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, D-53115 Bonn
With the rapid progress of Lattice QCD, the spectrum of excited states starts to become into reach. This allows, for the first time, for an ab-initio test of the resonance spectrum. The extraction and analysis of resonances is a challenge due to lattice artefacts such as the finite lattice volume. As will be discussed, hadronic calculations in the framework of effective field theory are the only tool to connect lattice QCD results to the infinite volume, i.e. the physical limit. Such calculations can be used to predict lattice spectra, estimate their required accuracy, or in case data are available, to analyze them. In addition, changing the boundary conditions of the problem allows for a direct access to many resonances as will be discussed for some of the most interesting excited states, such as the f0(980), the Λ(1405) and the broad scalar resonances.