2002/02/01 by B. Krusche, J. Ahrens, R. Beck +7 · 4 citations
Physics and Astronomy · #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-ex
paper · pdf · doi:10.1016/s0370-2693(01)01503-9
published as Phys.Lett. B526 (2002) 287-294 · 10 pages, 6 figures
openalex publication_date 2002/02/01 · arxiv created 2003/04/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
Differential and total cross sections for coherent π0-photoproduction from 12C, 40Ca, 93Nb and Pb targets have been measured throughout the region of the Δ(1232)-resonance. The experiments were performed with the TAPS-detector at the Mainz accelerator MAMI. The characteristic proportionality of the cross section to the square of the atomic mass number and to the nuclear mass form factor is clearly demonstrated. The data allow for the first time detailed tests of model predictions for this reaction. The comparison of the data to model predictions shows that the Δ-nucleus interaction saturates: it is described for heavy nuclei with the same potential parameters as for 4He.