DESCRIPTION OF NONROTATIONAL STATES IN DY-160

The energies and wave functions of nonrotational states in Dy-160 that lie below 2.3 MeV are calculated in the quasiparticle-phonon nuclear model. Reasonably good agreement with available experimental data is o btained, and certain predictions are made. The wave function of each o f these excited state is dominated by a one-phonon term, the contribut ion of a two-phonon component being below 10%. It is shown that the fr agmentation of one-phonon states with energies above 2.5 MeV is signif icant and must therefore be taken into account. The quantities B(E1) a nd B(M1) for transitions from the ground state to excited states below 4 MeV are calculated with allowance for the fragmentation of one-phon on states. The results are found to be in qualitative agreement with e xperimental data. The orbital and spin parts of the M1 operator make c lose contributions to B(M1) values for the excitation of If states wit h energies in the range 2.3 - 3.3 MeV. It is demonstrated that the enh anced E1, E2, and M1 transitions furnish information about two-phonon components of the wave functions of excited states.