18–23 Jun 2017
Laboratori Nazionali del Sud
Europe/Rome timezone

First results of total and partial cross-section measurements of the 107Ag(p, $\gamma$)108Cd reaction

19 Jun 2017, 17:50
20m
Sala conferenze (Laboratori Nazionali del Sud)

Sala conferenze

Laboratori Nazionali del Sud

Via S. Sofia 62 I-95123 Catania Italy
Oral Explosive scenarios in astrophysics: observations, theory, and experiments Direct measurements 1

Speaker

Mr Felix Heim (Institute for Nuclear Physics, University of Cologne)

Description

The $\gamma$ process is assumed to play an important role in the nucleosynthesis of the majority of the p nuclei. Since the network of the $\gamma$ process includes so many different reactions and - mainly unstable - nuclei, cross-section values are predominantly calculated in the scope of the Hauser- Feshbach statistical model. The values heavily depend on the nuclear physics input-parameters. The results of total and partial cross-section measurements are used to improve the accuracy of the theoretical calculations. In order to extend the experimental database the 107Ag(p,$\gamma$)108Cd reaction was studied via the in-beam method at the high-efficiency HPGe $\gamma$-ray spectrometer HORUS at the University of Cologne. Proton beams with energies between 3.5 and 5.0 MeV were provided by the 10 MV FN-Tandem accelerator. First results on total and partial cross sections will be presented. Supported by the DFG (ZI 510/8-1) and the "ULDETIS" project within the UoC Excellence Initiative institutional strategy. P.S. and J.M. are supported by the Bonn-Cologne Graduate School of Physics and Astronomy.

Primary author

Mr Felix Heim (Institute for Nuclear Physics, University of Cologne)

Co-authors

Prof. Andreas Zilges (Institute for Nuclear Physics, University of Cologne) Mr Jan Mayer (Institute for Nuclear Physics, University of Cologne) Mr Mark Spieker (Institute for Nuclear Physics - University of Cologne) Mr Philipp Scholz (Institut für Kernphysik, Universität zu Köln, Cologne, Germany)

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