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HK: Physik der Hadronen und Kerne
HK 40: Electromagnetic and Hadronic Probes V
HK 40.4: Vortrag
Donnerstag, 14. März 2002, 15:00–15:15, D
Photoproduction of π0π0 on protons at CB-ELSA — •Igor Horn — ISKP, Universität Bonn
The Crystal Barrel is a detector optimized to detect multiphoton final
states with a large solid-angle coverage.
During the last year photoproduction data including various final states
with
neutral mesons were taken by the CB-ELSA experiment at the electron
stretcher accelerator (ELSA) in Bonn. In particular attention is paid
to the γp→pπ0π0 reaction. The data show
clear structures due to resonance production. Evidence for successive
decays of high-mass nucleon resonances via Δ (1232) and via
resonances of higher mass is observed in different mass regions.
The new data taken at photon energies up to 2.8 GeV will be presented.
Supported by DFG.