SFB 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Electron Accelerator S-DALINAC

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The Collaborative Research Centre aims at an understanding of the structure of nuclei and its impact on astrophysical processes. The experiments focus on the study of nuclear excitations with real and virtual photons using the Superconducting Darmstadt Electron Accelerator S-DALINAC. They provide a detailed understanding of the nuclear charge and current distributions and thus enable to test descriptions of nuclear dynamics in the context of modern many body theory. Furthermore, the experiments provide information on various aspects of stellar evolution and nucleosynthesis otherwise hardly accessible. For example, cross sections for the gamma-process responsible for the production of proton-rich, heavy nuclei as well as for neutrino-induced nucleosynthesis can be measured. Finally, the late stages of a massive star and its route to a supernova explosion are governed by the excitation of elementary nuclear modes whose properties are elucidated in electron scattering.