Speaker
Eckart Grosse
(FZ-Dresden-Rossendorf and TU Dresden)
Description
Since decades photon strength functions have been extracted from photo-dissociation as well as from radiative capture and other nuclear reaction data. Both methods yield results for non-overlapping energy regimes and various proposals have been made for a unified parameterization covering the range from low lying single levels up to the isovector giant dipole resonance (GDR) energies. Photon scattering experiments allow to extract information on the electromagnetic strength for the intermediate range up to the nucleon binding energies, but until recently only scarce data were available. Novel experimental equipment allowed the accumulation of new data in a number of nuclei in the A=90 mass range and it appears to be difficult to find a unique parameterization covering the full energy range. To better understand possible discrepancies existing radiative neutron capture data from the literature have been reanalyzed taking into account the information from photon induced measurements. Average photon widths of neutron capture resonances resulting from such analysis will be presented as well as respective information for resonance capture cross sections and various coincidence data. Remaining uncertainties will be discussed with regard to future experimental possibilities.
Authors
Arnd Junghans
(FZ-Dresden-Rossendorf)
Eckart Grosse
(FZ-Dresden-Rossendorf and TU Dresden)
Co-authors
Evert Birgersson
(FZ-Dresden-Rossendorf)
Georg Schramm
(FZ-Dresden-Rossendorf)
Ralph Massarczyk
(FZ-Dresden-Rossendorf)
Ronald Schwengner
(FZ-Dresden-Rossendorf)
