Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 9: Hadron Structure and Spectroscopy 2

HK 9.4: Talk

Monday, March 23, 2015, 15:45–16:00, T/SR25

Circularly polarized photons at the BGO-OD experiment* — •Thomas Zimmermann for the BGO-OD collaboration — Physikalisches Institut, Universität Bonn

The BGO-OD experiment, presently starting data taking at the electron accelerator ELSA at the University of Bonn, is intended for the systematic investigation of the photo-production of mesons and the structure and dynamics of nucleon excitations. To disentangle the different contributions to the measured observables, linearly and circularly polarized photons are used.

This talk describes the production of circularly polarized photons at the BGO-OD experiment and how the degree of polarization is determined using a Møller polarimeter. First results using circular polarization will be presented.

* Supported by the DFG (SFB/TR-16)