XUV ionization of N₂

We theoretically investigated N₂ single ionization by phase-stable attosecond XUV pulse trains made available at the FERMI free-electron laser [1].  We calculate photoelectron spectra by numerically propagating the electronic and nuclear motion on the potential energy surfaces of neutral ground-state N₂ and thousands of discretized states employed to represent the N₂⁺+e continuum. Our preliminary simulated results are in good agreement with the experimental data taken at FERMI [2].