Search for decoupled bands in Odd-Odd Re-174

An effort has been made to search for the decoupled bands in odd-odd Re-174 via the Tb-159(Ne-20,5n gamma)Re-174 reaction through excitation functions, K x-gamma and gamma-gamma coincidence measurements. The doubly decoupled band and the semidecoupled one have been found in this work. Their quasiparticle configurations are proposed to be pi 1/2(-)[541] x upsilon 1/2(-)[521] and pi 1/2(-)[541]x upsilon i(13/2), respectively, according to the characteristics of band structures in this mass region. Another band with strongly coupled character is also reported.