| Abstract: | Connection is made between the velocity dependence of the inelastic cross section and the profile of the broadened spectral line. The transition between the Born and adiabatic limits in the scattering problem corresponds to the transition between the impact and static limits in the broadening problem. Both the cases with term crossing and without term crossing are considered, corresponding to “positive” and “negative” domains of the line profile. The results obtained lead to the conclusion that line-broadening theory is useful in the calculations of inelastic cross sections, where the region of intermediate energies of the perturbing particles is included. Detailed calculations of the inelastic cross section have been made for the dipole interaction because exact solutions of the broadening problem are available for comparison in this case. Comparison is made with the results of other authors. The possibility of calculating the effect of field rotation is discussed. |
