BAND CROSSING IN THE ODD-PARTICLE SYSTEM

The interaction between the yrast and yrare bands is discussed in the case of five particles in the single-j shell model space with j = 13/2 . Comparison between the case of four and five particles in the same m odel space is made and it is shown that the interaction between the yr ast and yrare bands in the five-particle system is stronger than that in the four-particle system. The results of the Hartree-Fock-Bogoliubo v cranking (HFBC) method are compared with those obtained from the dia gonalization of the cranking model Hamiltonian and it is shown that th e HFBC method is insufficient for describing the band crossing in the five-particle system.