Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 40: Nukleare Astrophysik
HK 40.6: Vortrag
Donnerstag, 20. März 2014, 15:45–16:00, HZ 5
First results of the 92Mo(p,γ)93Tc reaction performed at the HORUS spectrometer in Cologne — •Jan Mayer1, Martin Baldenhofer1, Lars Netterdon1, Anne Sauerwein2, Philipp Scholz1, and Andreas Zilges1 — 1Institute for Nuclear Physics, University of Cologne — 2Institute for Applied Physics, Goethe University Frankfurt
The γ process is an important nucleosynthesis mechanism to explain the abundances of the majority of p nuclei, which are bypassed by neutron capture processes. To improve the accuracy of reaction rates predicted by theoretical models, precise experimental data is required. In-beam experiments with HPGe detectors aim at measuring total and partial reaction cross sections for stable as well as unstable products and thus either allow the direct calculation of stellar rates or constrain nuclear physics input parameters. Located at the 10 MV tandem accelerator of the University of Cologne, the high-efficiency HPGe γ-ray spectrometer HORUS was used to measure the 92Mo(p,γ)93Tc reaction at proton energies between 3.7 and 5 MeV. In this talk, first results on total and partial cross sections will be presented.
Partly supported by the DFG (Zi 510/5-1).