Quantum Defect Method for Linear Molecules and e–H2+ Scattering

Abstract

The quantum defect method is extended to permit calculation of short‐range phase shifts for electron scattering states in the field of a linear molecule–ion. The method is applied to the low‐energy $\text{(k\hspace{0.17em}<\hspace{0.17em}0.2}\mathrm{a.u.})$ scattering of electrons by H₂⁺; the differential scattering cross section is calculated and compared with that derived by Temkin and Vasavada.