Answers are grounded in this paper and cite their sources.
Differential cross sections for the electron impact excitation of the 2 1 S state of helium at impact energies 200 and 300 eV are calculated in the two-potential model and using the modified Born approximation. Exchange is considered within the framework of the Ochkur-Rudge approximation. The results thus obtained are in reasonable agreement with other theoretical models and with recent experimental measurements.
No takes yet. Share an insight, caveat, or question.
Gupta et al. (1979) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: