New quantum numbers in collision theory. V. Orientation of He21P state by 80-eV electron impact

It is found that two simple dynamical relations can explain most observations of experiments on the orientation of the He 2${\mathrm{}}^1$P state induced by electron impact versus scattering angle in the process e(80 eV)+He 1 ${}_{}{}^1{}_{}{}^{}+\mathrm{H}\mathrm{e}$ 2 ${}_{}{}^1{}_{}{}^{}P$. In particular, by utilizing these relations and with the help of new quantum numbers, we identified a formula that can account for more than 80% of the orientation at large angles, which contains only three dynamical parameters of the form Im($S^{\mathrm{°}}$S) and one other, namely, the differential cross section at 180° scattering.