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Berlin 2005 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 38: Kernphysik/Spektroskopie

HK 38.7: Talk

Wednesday, March 9, 2005, 15:45–16:00, TU MA004

Dipole-strength distributions below the giant dipole resonance in 92Mo, 98Mo and 100Mo — •G. Rusev1, R. Schwengner1, A. Wagner1, K.D. Schilling1, F. Dönau1, S. Frauendorf1,2, M. Erhard1, A.R. Junghans1, K. Kosev1, N. Nankov1, and E. Grosse1,31Institut für Kern- und Hadronenphysik, Forschungszentrum Rossendorf, Dresden, Germany — 2University of Notre Dame, Notre Dame, USA — 3Technische Universität Dresden, Dresden, Germany

Photon-scattering experiments with bremsstrahlung were performed on 92Mo, 98Mo and 100Mo at electron energies up to 13.2 MeV. The measurements were carried out at the new bremsstrahlung facility of the Rossendorf ELBE accelerator. The highest end-point energies are above the neutron-separation energies of the three isotopes and allow the determination of the dipole strengths below the giant dipole resonance. The decay to intermediate levels was estimated with the constant-temperature level-density model and the dipole-strength distributions were reconstructed. The obtained results are completed with data from neutron-scattering experiments [1] and compared with predictions of RPA calculations.
[1] H. Beil et al., Nucl. Phys. A227 (1974) 427
Supported by the DFG under contracts Do 466/1-1 and Do 466/1-2.

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