Darmstadt 2008 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 36: Kern- und Teilchen-Astrophysik
HK 36.1: Gruppenbericht
Donnerstag, 13. März 2008, 16:30–17:00, 2B
Status and perspectives of the LUNA experiment at Gran Sasso/Italy — •Daniel Bemmerer1, Ralf Kunz2, Michele Marta1, Claus Rolfs2, Frank Strieder2, and Hanns-Peter Trautvetter2 for the LUNA collaboration — 1Forschungszentrum Dresden-Rossendorf, 01328 Dresden, Germany — 2Institut für Experimentalphysik III, Ruhr-Universität Bochum, Bochum, Germany
The Laboratory Underground for Nuclear Astrophysics (LUNA) in the Gran Sasso underground facility, Italy, has been designed to measure low cross sections for astrophysical purposes. The 3He(α,γ)7Be study at LUNA has now been completed, and the final data will be shown here. During the year 2007, two measurement campaigns have been performed: First, a precision study of ground state capture in the 14N(p,γ)15O reaction with an impact on solar 13N and 15O neutrinos (contribution by M. Marta). Second, a study of the 25Mg(p,γ)26Al reaction producing radioactive 26Al, a tracer of live nucleosynthesis in our galaxy (contribution by F. Strieder).
The scientific program for the next years at the current LUNA 400 kV accelerator includes the study of the 2H(α,γ)6Li reaction for big-bang nucleosynthesis and the study of the 15N(p,γ)16O reaction and several other reactions of the CNO cycles. Feasibility studies on selected cases will be presented.
The scientific program for the proposed new LUNA 3 MV accelerator will be discussed.