Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 8: Nukleare Astrophysik
HK 8.1: Gruppenbericht
Montag, 4. März 2013, 11:00–11:30, HSZ-403
Nuclear Astrophysics at the R3B/LAND setup* — •Tanja Heftrich — Goethe-Universität Frankfurt a. M., Germany — GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
One aim of nuclear astrophysics is the understanding of the nuclear processes leading to the synthesis of elements. Isotopic abundances up to iron mainly result from fusion in stars, whereas heavier nuclei are synthesized by the slow and the rapid neutron capture processes. The synthesis of the rare p nuclei remains an interesting puzzle.
The nuclear physics of stellar nucleosynthesis can be studied using the R3B/LAND setup. Important astrophysical reactions on radioactive nuclei can be constrained using Coulomb excitation at beam energies around 500 MeV/u. Furthermore, it is possible to determine the corresponding inverse reactions using the detailed balance theorem.
This contribution will present the experimental setup including the different detectors as well as the procedure of analysis of the kinematically complete measurements at the R3B/LAND setup and some recent results relevant for different astrophysical scenarios.
*supported by Helmholtz International Center for FAIR, DFG (SO907/1-2), Helmholtz Graduate School for Hadron and Ion Research "HGS-HIRe for FAIR", Helmholtznachwuchsgruppe VH-NG-327 and BMBF (06FY71051)