SMuK 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HK: Fachverband Physik der Hadronen und Kerne

HK 30: Nuclear Astrophysics III

HK 30.2: Vortrag

Mittwoch, 22. März 2023, 14:30–14:45, SCH/A419

The ⁵⁸Fe(p,n)⁵⁸Co activation experiment at the University of Cologne — •Pina Wüstenberg, Felix Heim, Martin Müller, Svenja Wilden, and Andreas Zilges — University of Cologne, Institute for Nuclear Physics

The γ-process describes a large network of reactions that leads to the synthesis of proton-rich nuclei, the p nuclei. Not all of these reactions can be measured in the laboratory, therefore theoretical predictions are needed. These models can be tested and improved by comparing them to experimental data. This contribution deals with the determination of cross sections of the ⁵⁸ Fe(p,n)⁵⁸Co reaction. The cross section of (p,n) reactions is mainly sensitive to the optical model potential that describes the interaction between a proton and a nucleus. For this purpose, highly-enriched ⁵⁸ Fe targets were irradiated with protons with seven different energies in the energy range between 3.3 MeV and 5 MeV. The proton beam was delivered by the 10 MV FN Tandem accelerator of the Institute for Nuclear Physics at the University of Cologne. The total cross sections were derived by analyzing the emitted γ-rays during the decay of ⁵⁸ Fe using a dedicated counting setup. The γ-ray spectra were recorded using two clover-type HPGe detectors in a face-to-face geometry. The resulting cross sections were compared to predictions from theoretical models.
Supported by the DFG (ZI 510/8-2)