Resonances in the Elastic and Inelastic Electron Scattering from N2

Abstract
A sharp and isolated resonance of the ``helium‐window'' type has been discovered in electron transmission measurements in N2 at 11.48 eV (believed accurate to within 0.05 eV). Additional resonance structure is observed at 11.75 and 11.87 eV. The E3Σg+ state is coincident in energy with the 11.87‐eV structure and is found to exhibit an excitation probability sharply peaked near threshold. The series of resonances, previously known to exist between 1.8 and 3.5 eV as a consequence of an N2 state with vibrational structure, has been studied with improved resolution and by different procedures.