6533b7ddfe1ef96bd1273d9e

RESEARCH PRODUCT

Coherent π0-photoproduction from atomic nuclei

J. AhrensR.o. OwensV. MetagR. BeckB. KruscheH. StroeherS.s. Kamalov

subject

PhysicsMass numberNuclear physicsNuclear and High Energy PhysicsNuclear TheoryAtomic nucleusFOS: Physical sciencesNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear Experiment

description

Differential and total cross sections for coherent pi0-photoproduction from 12C, 40Ca, 93Nb and Pb targets have been measured throughout the region of the Delta(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 Delta-nucleus interaction saturates: it is described for heavy nuclei with the same potential parameters as for 4He.

https://doi.org/10.1016/s0370-2693(01)01503-9