EPJ Web Conf.
Volume 134, 2017Subnuclear Structure of Matter: Achievements and Challenges
|Number of page(s)||26|
|Published online||26 January 2017|
Spectroscopy of baryon resonances
Helmholtz–Institut für Strahlen– und Kernphysik, Universität Bonn, 53115 Bonn, Germany
Published online: 26 January 2017
Within project A.1 of the SFB/TR16 “Subnuclear Structure of Matter”, a large amount of data on photoproduction reactions has been accumulated at the Bonn Electron Stretcher Accelerator ELSA with the CBELSA/TAPS detector and was analysed in detail. In particular, data have been taken with unpolarized or with linearly or circularly polarized photons and with unpolarized or with longitudinally or transversely polarized protons. Photoproduction off neutrons was studied to determine the helicity amplitudes for the excitation of resonances off neutrons. In a partial wave analysis of the data, new resonances have been found and the properties of new and of known resonances have been determined, including the measurement of partial widths of so far unmeasured decay modes.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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