EPJ Web Conf.
Volume 134, 2017Subnuclear Structure of Matter: Achievements and Challenges
|Number of page(s)||9|
|Published online||26 January 2017|
Study of QCD-dynamics in η and η′ production and decays
1 Helmholtz-Institut für Strahlen- und Kernphysik, Rheinische Friedrich-Wilhelms-Universität Bonn, Nußallee 14-16, 53115 Bonn
2 Institut für Experimentalphysik I Ruhr-Universität Bochum Universitätsstraße 150, 44780 Bochum
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Published online: 26 January 2017
One aim of this project lies in studying QCD dynamics using photoproduction of η and η′ mesons with the CBELSA/TAPS experiment at the accelerator facility ELSA. Hadronic decay modes of η and η′ are analyzed that allow the study of symmetry breaking effects in QCD. Furthermore, excited η-states produced with a photon beam are studied within the scope of this project. Of special interest is hereby the nature of the η(1405). The high data samples for η- and η′-photoproduction off the proton allow in addition the determination of polarization observables.
© The Authors, published by EDP Sciences, 2017
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