Calculations of polarized neutron-polarized ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ scattering are presented for the transverse and longitudinal total cross-section differences Δ${\mathrm{\sigma }}_{\mathit{T}}$ and Δ${\mathrm{\sigma }}_{\mathit{L}}$ in the energy range ${\mathit{E}}_{\mathit{n}}$=0.1 to 10 MeV. Predictions made from phase-shift analyses, R-matrix analysis, and a multichannel resonating group-model calculation are compared. The predictions are in qualitative agreement and show that polarized neutron-polarized ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ scattering is sensitive to the level structure of ${}_{}{}^4{}_{}{}^{}\mathrm{He}$ in the excitation energy range 20–30 MeV.

• Received 23 February 1994

DOI:https://doi.org/10.1103/PhysRevC.50.237