The BGO-OD experiment at the ELSA accelerator facility uses an energy tagged bremstrahlung photon beam to investigate the excitation spectrum of the nucleon. The setup consists of a highly segmented BGO calorimeter surrounding the target, with a particle tracking magnetic spectrometer at forward angles.BGO-OD is ideal for investigating the photoproduction of hadrons of non-zero strangeness. The high momentum resolution at forward angles covers a kinematic region where t-channel exchange mechanisms play adominant role. Access to this low momentum transfer region also allowsthe investigation of degrees of freedom not derived from constituent quark models, for example, the role of (vector) meson - baryon interactions and dynamically generated states in photoproduction reactions. Data taking for the first part of an extensive physics programme iscomplete and preliminary results and ongoing analysis are presented.
Jude, T., Alef, S., Bauer, P., Bayadilov, D., Beck, R., Bieling, J., et al. (2018). Strangeness photoproduction at the BGO-OD experiment. In 17th International Conference on Hadron Spectroscopy and Structure, Hadron 2017 (pp.054). SISSA [10.22323/1.310.0054].
Strangeness photoproduction at the BGO-OD experiment
Fantini, A.;Messi, F.;Messi, R.;Vegna, V.;
2018-01-01
Abstract
The BGO-OD experiment at the ELSA accelerator facility uses an energy tagged bremstrahlung photon beam to investigate the excitation spectrum of the nucleon. The setup consists of a highly segmented BGO calorimeter surrounding the target, with a particle tracking magnetic spectrometer at forward angles.BGO-OD is ideal for investigating the photoproduction of hadrons of non-zero strangeness. The high momentum resolution at forward angles covers a kinematic region where t-channel exchange mechanisms play adominant role. Access to this low momentum transfer region also allowsthe investigation of degrees of freedom not derived from constituent quark models, for example, the role of (vector) meson - baryon interactions and dynamically generated states in photoproduction reactions. Data taking for the first part of an extensive physics programme iscomplete and preliminary results and ongoing analysis are presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
