Photoionization and Rydberg states of N2

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Abstract
The frequencies and intensities of transitions to Rydberg levels, the direct photoionization cross section, and the angular distribution of photoelectrons of N2 have been calculated for processes associated with N+2(X 2Σ+g) and N+2(A 2Πu). The theoretical model is based on a Hartree–Fock wavefunction for the ground state of N2, and excited state wavefunctions derived from an irreducible‐tensorial one‐center representation of the effective potential of the N+2 core. The calculations were carried out for several internuclear distances, especially to try to interpret the dependence of the angular distribution on the final vibrational state.