Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 China Institute of Atomic Energy, Beijing 102413, China
Abstract:
The level structure of doubly odd nucleus 142Pm has been studied via the 128Te(19F,5nγ)142Pm reaction in the energy region from 75 to 95MeV. In-beam γ rays were measureed including the excited function, γ-ray singles and γ-γ coincidences in experiment. The level scheme of 142Pm has been extended up to excitation energy of 7030.0keV including 25 new γ rays and 13 new levels. Based on the measured γ-ray anisotropies, the level spins in 142Pm have been suggested.