NUCLEAR-STRUCTURE OF GD-156 STUDIED WITH (N, GAMMA), (N, E-), (D, P),(D, T) REACTIONS AND LIFETIME MEASUREMENTS

The nucleus Gd-156 was studied with (n, gamma) and (n, e-) reactions a t the Institut Laue-Langevin (ILL) in Grenoble. The (d, t) and (d, p) reactions were investigated at the Munich Tandem Accelerator. Primary gamma rays following average resonance capture were observed at the In stitut for Nuclear Research in Kiev. Summed coincidences measurements were carried out at the Reactor IBR-30 in Dubna. An extensive level sc heme was constructed up to 2.35 MeV including 413 transitions and 18 b and assignments. Lifetimes of 16 selected levels were measured with th e Gamma-Ray Induced Doppler broadening method at the ILL. Low-lying ba nds of positive and negative parity were interpreted in the framework of the spdf-IBA. The agreement was found to be quite good.