The account of recoil term in the Hamiltonian of odd-deformed nuclei

The role of recoil term is investigated in the Hamiltonian of odd-deformed nuclei when the average field is formed. Energies and structure of excited states are calculated taking into account quasiparticle-phonon degrees of freedom at equilibrium values of quadrpole deformation parameter. Such an approach (as shown on the odd-neutron 165Er nucleus) leads to a considerably better agreement with experiment for rotational state energies and reduced probabilities of E1-transitions particular in the cases when its connected with the 1/2+[660] and 1/2+[400], 3/2+[651] and 3/2+[402] states. This is due to a more total account of ΔN=2-mixing of orbitals with N=4 and 6. The obtained ΔN=2 mixing is the result of using quasiparticle-phonon wave functions of states with Ksup(π)=1/2sup(+) and 3/2+ calculated at equilibrium values of quadrupole deformation parameter after considering the recoil interaction in the Hamiltonian of odd-deformed nucleus