Berlin 2005 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 20: Kern- und Teilchen-Astrophysik
HK 20.5: Talk
Monday, March 7, 2005, 15:00–15:15, TU MA144
Photoactivation of p-process nuclei — •M. Erhard1, E. Grosse1,2, A. Hartmann1, A.R. Junghans1, K. Kosev1, C. Nair1, N. Nankov1, G. Rusev1, K.D. Schilling1, W. Schulze1, R. Schwengner1, and A. Wagner1 — 1Institut für Kern- und Hadronenphysik, Forschungszentrum Rossendorf, Dresden, Germany — 2Technische Universität Dresden, Dresden, Germany
A research program was started at the ELBE-bremsstrahlung beam to study experimentally the near-threshold photodisintegration reaction of nuclides in the chain of cosmic heavy-element production. An important prerequisite for such studies is the profound knowledge of the bremsstrahlung characteristic which has been investigated experimentally as well as theoretically. First data of astrophysical importance were obtained for the target nucleus 92Mo by observing the radioactive decay of nuclides produced in the photodissociation at electron energies between 11.8 and 13.2 MeV. The results are compared to recent calculations by Rauscher and Thielemann[1].
[1] T. Rauscher and F.-K. Thielemann, Atomic Data and Nuclear Data Tables, 88 (2004) 1