München 2019 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 38: Nuclear Astrophysics III
HK 38.5: Talk
Wednesday, March 20, 2019, 15:15–15:30, HS 18
Investigation of total cross sections of the 93Nb(p,γ)94Mo reaction — •M. Müller, F. Heim, E. Hoemann, M. Körschgen, J. Mayer, P. Scholz, and A. Zilges — Institute for Nuclear Physics, University of Cologne
The nucleosynthesis of p-nuclei is an important field of research in the area of nuclear astrophysics and a lot of questions remain unanswered. One example is the observed relative abundance of the 94Mo nucleus, which is higher than the predicted one by orders of magnitude [1]. To extend experimental data, total cross sections of the 93Nb(p,γ)94Mo reaction have been measured at three beam energies between 3 MeV and 4.5 MeV. The measurements have been performed using the HORUS γ-spectrometer consisting of up to 14 high purity germanium detectors [2]. The beam was provided by the 10 MV FN Tandem accelerator, located at the University of Cologne’s Institute for nuclear physics.
Preliminary results and their comparison to Hauser Feshbach statistical model calculations will be presented [3].
Supported by the DFG (ZI 510/8-1) and the "ULDETIS" project within the UoC Excellence Initiative institutional strategy.
[1] M. Arnould and S. Goriely, Phys. Rep. 384, 1 (2003).
[2] L. Netterdon et al., Nucl. Instr. Meth. 754, 94 (2014).
[3] W. Hauser and H. Feshbach, Phys. Rev. 87, 366 (1952).