Differential cross sections at 0° and 180° for electron-impact excitation of the E ³Σ<inf>g</inf>⁺ state of N<inf>2</inf>

Abstract

The relative differential cross section at forward and backward angles for excitation of the E 3Σg+ state of N2 was measured in the resonant near threshold energy region. The contributions at 0° and 180° were resolved by employing the time-of-flight technique. Theoretically proposed, symmetric angular distribution of scattered electrons via 2Σu+ resonance was directly confirmed.