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HK: Fachverband Physik der Hadronen und Kerne

HK 2: Hadronenstruktur und -spektroskopie

HK 2.6: Vortrag

Montag, 19. März 2012, 15:30–15:45, RW 2

Simulation and data analysis with the BGO-OD experiment* — •Thomas Jude — Physikalisches Institut, Universität Bonn

The new BGO-OD experiment at the ELSA accelerator facility, Bonn, is approaching the end of the commissioning phase, with data taking expected in 2012. The experiment consists of the highly segmented BGO-Ball with a particle tracking spectrometer at forward angles. The BGO-Ball is ideal for the identification of multi-photon final states with accurate time and energy resolution. The forward spectrometer comprises of a magnetic field with a series of tracking detectors, drift chambers and time of flight walls, allowing precise momentum reconstruction of forward travelling particles.

Analysis and comparison of simulated and measured data will be presented. This includes particle momentum reconstruction with the BGO-Ball, and the tracking of particles and subsequent momenta reconstruction using the forward spectrometer. A new K⁺ identification method using the BGO-Ball will also be presented. The K⁺ is identified from the time delayed, weak decay within the BGO-Ball crystals. This greatly increases the acceptance region for strangeness and vector meson photoproduction channels.

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