Coupling modes in doubly odd nuclei: The case of Ta-172 - art. no. 064322

High-spin states in doubly odd Ta-172 were investigated in two different ex periments by means of in-beam gamma-ray and internal-conversion electron sp ectroscopy techniques. Excited states of 172Ta were populated using the Tb- 159(O-18,5n) and Ho-165(C-12,5n) reactions at beam energies of 93 and 79 Me V, respectively. Eleven rotational bands, including twin bands in the norma l deformation regime, have been observed and their configurations discussed . Three isomeric states have been found and their half-lives measured. Alig nments, band crossing frequencies. and electromagnetic properties have been analyzed in the framework of the cranking model.