Supersymmetry and ~198Hg

摘要

The energy spectrum and electromagnetic transition properties of the supermultipletmembers with two proton fermions can be constructed using the dynamical Uv (6/12) U, (6/4)extended supersymmetry. In order to investigate predictions of the two proton fermion - four neutronboson supermultiplet member ~198Hg,an experiment with theHORUScube y-ray spectrometer at theCologne TANDEM accelerator was performed using the ~196Pt(a, 2n)~198Hg reaction. By analyzingyy coincidence spectra and yy angular correlations, the required experimental data - level and decayenergies, level spins and multipole mixing ratios - could be obtained. For the low-energy states, theexperimental data show good agreement with theory.