Differential cross sections at 0 degrees and 180 degrees for electron-impact excitation of the E (3)Sigma(+)(g) state of N-2 - art. no. 022711

摘要

Relative differential cross sections at forward and backward angles for excitation of the E (3)Sigma(g)(+) state of N-2 have been measured in the resonant, near threshold energy region. Measurements are performed by using a double trochoidal electron spectrometer and are calibrated on the absolute scale by simultaneous measurements of this process and vibrational excitation of the ground state of N-2 via (2)Pi(g) resonance. The contributions at 0degrees and 180degrees are separated by electron beam modulation and time-of-flight detection of scattered electrons. Obtained results confirm directly theoretical predictions of the symmetry of angular distribution of scattered electrons from (2)Sigma(u)(+) resonance. [References: 15]