Orbital strengths from self-consistent deformed mean field calculations
E Garrido, EM de Guerra, P Sarriguren, JM Udriaaas - Physical Review C, 1991 - APS
E Garrido, EM de Guerra, P Sarriguren, JM Udriaaas
Physical Review C, 1991•APSWe present results for summed orbital 1+ 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+ strengths for the two chains of isotopes are proportional to δ 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 δ rather than to δ 2 …
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+ strengths for the two chains of isotopes are proportional to δ 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 δ rather than to δ 2 …
Abstract
We present results for summed orbital 1+ 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+ strengths for the two chains of isotopes are proportional to δ 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 δ rather than to δ 2. Analytical expressions are given for the explicit dependence on the deformation parameter with and without pairing, valid for the anisotropic harmonic oscillator model.
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