Photoelectron angular distributions of the N2O outer valence orbitals in the 19–31 eV photon energy range

Photoelectron asymmetry parameters, partial cross sections, and branching ratios for the X, A, B, and C states of N2O+ were measured using synchrotron radiation in the photon energy range 19–31 eV. Vibrationally averaged data are reported for all four states, as well as vibrationally resolved data for the A and C states. The data are compared with a multiple scattering calculation, (e, 2e) dipole measurements, and similar data on CO2. The N2O and CO2 results show remarkable state-by-state similarity in their asymmetry parameters.