Symmetry breaking in mirror nuclei 55Co and 55Ni

Yrast states in mirror nuclei Co and Ni have been populated with a radioactive ion beam using the Isotope Separator On-Line method. A shielded array of 7 Compton suppressed germanium detectors recorded reaction gamma-rays. For channel selection, an array of 128 independent silicon detectors was used to differentiate exit channels with different number of proton and alpha particles emitted. From gamma-gamma and gamma-particle coincidences, three lines in Co and one line in Ni was obtained for the first time

کلیدواژه ها:

Mirror nuclei ، Radioactive Ion Beam ، Coulomb Displacement Energies ، Decay Schemes ، Compound Nucleus ، Fusion-Evaporation Reaction