Abstract
The decay of molybdenum-101 has been investigated using the three-parameter (γ–γ–t) coincidence system of HPGe–HPGe detectors. According to the off-line analysis, the decay scheme was modified. The positions of 221.80, 318.00, 377.90, 452.50, 515.42, 1011.05, and 1759.72 keV transitions have been arranged again, the transition positions of 104.70, 105.95, and 774.15 keV gamma rays have been assigned for the first time, the positions of 169.00, 590.91, 980.52, and 1431.68 keV transitions have been reconfirmed, and the 1508.01 keV gamma ray was observed simultaneously for the first time and its transition position has been assigned. The β− intensities and the values of logft of most levels were calculated. Combining with the high-spin states observed by the in-beam γ-ray spectroscopy of previous decay works, the structure of the excited positive/negative-parity yrast states of 101Tc is discussed using a projected shell model, and a band diagram calculated for the positive-parity yrast band is also shown in order to extract physics out of the numerical results. In addition, the analysis of other three bands originated from 3/2−[301], 5/2−[303], and 1/2+[431] Nilsson states, respectively, is also performed in the framework of this model.
