Frankfurt 2014 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 61: Nukleare Astrophysik
HK 61.6: Vortrag
Freitag, 21. März 2014, 15:30–15:45, HZ 4
Proton-induced reactions on naturally composed zirconium — •Anne Sauerwein1, Philipp Erbacher1, Jan Glorius1, Joachim Görres1, Kerstin Sonnabend1, Edward Stech2, and Michael Wiescher2 — 1Institut für Angewandte Physik, Goethe Universität Frankfurt am Main, Germany — 2Institute for Structure and Nuclear Astrophysics (ISNAP), University of Notre Dame, Indiana, USA and Joint Institute of Nuclear Astrophysics
Most reaction rates for the so-called p process, which produces the p nuclei, are adopted from Hauser-Feshbach-model (HFM) calculations. In order to improve the accuracy of theoretically predicted reaction rates, an improvement of its nuclear physics input is required. For this reason naturally composed zirconium was bombarded with protons at energies between 2 MeV and 10 MeV in order to determine cross sections of seven (p,γ) and (p,n) reactions using the activation technique. The irradiations and the γ-ray spectroscopy took place at the ISNAP of the University of Notre Dame, USA. These measurements allow systematic investigations of the proton-optical model potentials, an important input of the HFM, from the neutron closed-shell isotope 90Zr to the double subshell-closed isotope 96Zr. In this contribution we present our preliminary results.
Supported by DFG (SO907/2-1) and HIC for FAIR.