Inelastic proton scattering at several hundred MeV and extreme forward angles has been established as a versatile tool to study photon strength functions in heavy nuclei from low to high excitation energies. I will report on recent extensions of the method to lighter nuclei. While the approach becomes more model-dependent because of the less favorable ratio of Coulomb to nuclear cross...
Info about recently published data from multi-step gamma cascade spectra will be provided.
I will give a presentation of the most recent results from the Oslo group and the current ongoing projects.
The systematics of energies and contribution to the energy-weighted sum rule of dipole gamma transitions of pygmy dipole resonance (PDR) in middle and heavy nuclei with an excess of neutrons are considered. To describe the energy of the PDR, a macroscopic model of Isacker-Nagarajan-Warner [1] was applied with a relative displacement of the densities of the protons of the crust and surface...
I will present comparisons between experimental data obtained using the Oslo method and the theoretical calculations available on the database webpage (SMLO and D1M-QRPA). Oslo data were assigned quality indicators based on the quality of the uncertainty analysis performed as well as the availability of external nuclear data used for normalization. Outliers were identified and correlations as...
I will provide an update on the current photon strength function experimental data compilation and assessment. New data were added for the Oslo Methods, the Ratio and Shape Method, and Nuclear Resonance Fluorescence. Further, a modified approach on how to capture asymmetric and/or total uncertainties has been developed and the file labelling system has been streamlined.
In this presentation...
