Reinvestigation for EC/beta(+) decay of neutron-deficient nuclide Ba-12O

Ba-120 was produced by irradiation of Mo-92 with 171MeV S-32 via fusion-eva poration reaction channel. The reaction products were carried to a low-back ground region using a He-jet recoil fast tape transport system. Two planar High-purity Germanium detectors were put at oppsite sides of the tape so as to make a coincidence measurements. Based on the data analysis, the previo usly published gamma rays in Ba-120 decay were proved and other nineteen ga mma rays with weaker intensity and lower energy were also assigned to Ba-12 0 decay. A new decay scheme of Ba-120 was proposed. It includes 35 gamma ra ys and 25 energy levels.