Coherent pi0-photoproduction from atomic nuclei

Abstract

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.

10 pages, 6 figures

References in corpus (7)

• A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
• Electron and Photon induced Reactions on Nuclei in the Nucleon Resonance Region
• Medium Effects in Coherent Pion Photo- and Electroproduction on 4He and 12C
• Coherent Photoproduction of Pions on Spin-Zero Nuclei in a relativistic, non-local Model
• In-medium properties of the D13(1520) nucleon resonance
• Coherent π^\circ photoproduction from ^4He
• Lessons to be learned from the coherent photoproduction of pseudoscalar mesons

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• Dynamical Model of Coherent Pion Production in Neutrino-Nucleus Scattering
• Photoproduction of mesons off nuclei
• Expanding Nuclear Physics Horizons with the Gamma Factory
• Neutrino event generators: foundation, status and future
• Towards a Unified Model of Neutrino-Nucleus Reactions for Neutrino Oscillation Experiments
• Incoherent pion photoproduction on ${}^{12}$C
• Neutrino-induced coherent pion production off nuclei reexamined
• Coherent photoproduction of pi^0- and eta-mesons off 7Li
• Surface and volume effects in the photoabsorption of nuclei
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• Self energies of the pion and the delta isobar from the ^3He(e,e'pi^+)^3H reaction
• In-Medium Properties of Hadrons
• Nuclear coherent ${\pi }^0$ photoproduction with charge-exchange and spin-flip rescattering
• Forward coherent $\omega$ and $\varphi$ mesons production in the photon induced reaction on nuclei