Mainz 2012 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 9: Nukleare Astrophysik
HK 9.5: Vortrag
Montag, 19. März 2012, 17:45–18:00, RW 2
94Mo(γ,n)93Mo measured by Coulomb Dissociation — •Kathrin Göbel — Goethe-Universität Frankfurt a. M.
Most of the p-nuclei between 74Se and 196Hg are produced in explosive conditions by sequences of photo dissociations and β-decays. The region of A ≈ 100 marks the end of the rp-process. In order to study the production of p-nuclei in this region, the experimental validation of the involved reaction rates predicted by statistical model calculations has to be performed.
Most nuclei involved in photo dissociation reactions in stellar nucleosynthesis networks are unstable and cannot be prepared as a target for experiments using real photons. Therefore, the (γ,n) reaction has to be studied in inverse kinematics using a beam of the radioactive nuclei in the Coulomb field of a high-Z target nucleus.
The 94Mo(γ,n)93Mo cross section has been measured using Coulomb Dissociation at the SIS/FRS/LAND setup at GSI in Darmstadt in 2005. First results will be presented.
This project was supported by the Helmholtz International Center for FAIR and the Helmholtz Young Investigator Group VH-NG-327.