Dipole-strength distributions below the giant dipole resonance in the stable even-mass molybdenum isotopes
Dipole-strength distributions in the stable even-mass molybdenum isotopes up to the neutron-separation energies have been studied in photon-scattering experiments with bremsstrahlung at the superconducting electron accelerator ELBE at the Research Center Dresden-Rossendorf, Germany, and with mono-energetic photon beams at the High Intensity Gamma-ray Source facility at Triangle Universities Nuclear Laboratory. In order to determine the dipole-strength distribution, statistical methods were developed for the analysis of the measured spectra. The data obtained for the stable even-mass molybdenum isotopes from the present (γ,γ') experiments are combined with (γ,n) cross sections from the literature resulting in a photoabsorption cross section covering the full range from about 4 to 15 MeV, which is of interest for nuclear structure as well as for nuclear astrophysics network calculations. Novel information about the low- energy tail of the Giant Dipole Resonance and the energy spreading of its strength is derived. © 2009 American Institute of Physics.
Rusev, G; Angell, CT; Beyer, R; Dönau, F; Erhard, M; Grosse, E; Hammond, SL; Hutcheson, AL; Frauendorf, S; Junghans, AR; Kawowski, HJ; Kelley, JH; Klug, J; Kosev, K; Kwan, E; Nair, C; Nikolov, N; Schilling, KD; Schwengner, R; Tonchev, AP; Tornow, W; Wagner, A
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