Extraction of Transition Form Factors for Nucleon Resonances within a Coupled-Channels Model

Details Extraction of Transition Form Factors for Nucleon Resonances within a Coupled-Channels Model Extraction of Transition Form Factors for Nucleon Resonances within a Coupled-Channels Model

2009-10-09

arxiv.org/abs/0910.1742v1

Physics

Nuclear Physics

Nuclear Theory

11pages, 7 figures

Scientific paper

We explain how an analytic continuation we have developed recently is applied to determine the residues of the nucleon resonance poles within a dynamical coupled-channel model of meson-baron reactions. A procedure for evaluating the electromagnetic N-N^* transition form factors at resonance poles is developed. Illustrative results of the obtained N^* -> pi N, gamma N transition form factors for P_{11}, P_{33}, and D_{13} nucleon resonances are presented and compared with previous results.

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