Photoproduction of pions and properties of baryon resonances from a Bonn-Gatchina partial wave analysis

Details Photoproduction of pions and properties of baryon resonances from a Bonn-Gatchina partial wave analysis Photoproduction of pions and properties of baryon resonances from a Bonn-Gatchina partial wave analysis

2009-11-27

arxiv.org/abs/0911.5277v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 14 figures

Scientific paper

Masses, widths and photocouplings of baryon resonances are determined in a coupled-channel partial wave analysis of a large variety of data. The Bonn-Gatchina partial wave formalism is extended to include a decomposition of t- and u-exchange amplitudes into individual partial waves. The multipole transition amplitudes for $\gamma p\to p\pi^0$ and $\gamma p\to n\pi^+$ are given and compared to results from other analyses.

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