Collective motion in hot superheavy nuclei

The superheavy nucleus (272)(108)Hs and its evaporation daughters have been produced using the reaction Th-232(Ar-40,gamma xn) with beam energies 10.5 and 15.0 MeV/A. The Giant Dipole Resonance gamma-radiation from the hot conglomerate system prior to fission has been isolated using a differential method. The pre-fission component shows a strong dipole angular distribution relative to the spin direction. A saturation of the GDR strength is observed for the highest excitation energies