By analyzing the time-of-flight distribution of metastable helium atoms produced by bombardment of a ground-state atomic beam by low-energy electrons, we have measured the differential cross section for excitation of the 2³S₁ state over the energy range 19.9-20.4 eV. The results are compared with those determined from electron energy-loss experiments as well as with various theoretical predictions.
No takes yet. Share an insight, caveat, or question.
Zajonc et al. (1978) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:
More from Physical Review A