Relativistic Coupled-Channel Quark Model for Meson Resonances |
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Authors: | Regina Kleinhappel Willibald Plessas Wolfgang Schweiger |
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Institution: | 1. Theoretical Physics, Institute of Physics, University of Graz, 8010, Graz, Austria
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Abstract: | We present results from a study of meson ground and resonant states within a relativistic coupled-channel constituent-quark model. Along such an approach in particular the resonance character of hadron excitations can be fully taken into account. Thus it becomes possible to describe the decay of a hadron resonance into a lower lying state more realistically than in usual single-channel approaches. In a simplified model we demonstrate the viability and the advantages of our method by producing relativistic invariant results for the finite decay width of a meson resonance. |
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