Low-spin levels in 136Ba studied via the (n,n'γ) reaction

Low-spin levels in ¹³⁶Ba have been studied by means of the (n, n'γ) reaction using reactor fast neutrons. Excited states up to an excitation energy of 2.8 MeV and with spin values up to 7 were found to be populated. Energies, intensities and angular distributions of γ-rays attributed to ¹³⁶Ba have been measured.In addition to the confirmation of known level characteristics the angular distribution data resulted in new unique spin assignments for 7 levels (2 for the levels at 2080.0 keV, 2128.8 keV and 2484.7keV, 3 for those at 2390.8, 2399.8 and 2431.0 keV as well as 0⁺ for the 2141.3 keV level). Furthermore E2/M1 multipole mixing ratios were determined for the most intensive mixed γ-transitions.