Orbital 1(+) strengths from self-consistent deformed mean field calculations.

We present results for summed orbital 1{sup +} strengths in Sm and Nd isotopes obtained from deformed Hartree-Fock+BCS calculations, using a microscopic formulation of the scissors mode (the PHFB model) that excludes spurious contributions. It is found that the calculated 1{sup +} strengths for the two chains of isotopes are proportional to {delta}{sup 2} and that the summed strengths up to 4 MeV are in fair agreement with experimental data. It is also found that when pairing is neglected the total scissors mode strength is proportional to {delta} rather than to {delta}{sup 2}. Analytical expressions are given for the explicit dependence on the deformation parameter with and without pairing, valid for the anisotropic harmonic oscillator model.