Velocity Corrections for Total Scattering Cross Sections

Abstract

Velocity correction factors are given for a quantity ${\kappa }_{\mathrm{eff}}{\mathrm{\equiv v}}_i{Q}_{\mathrm{eff}}$ , where Q_eff is an effective total scattering cross section as measured in a molecular‐beam experiment, and v_i is the beam velocity. If κ_eff is regarded as being measured at the average relative velocity, the correction factors are all near unity and only weakly dependent upon the true velocity dependence of the cross section.