Figure 3: Vibrationally resolved photoionization spectrum of HCl for the 5σ state.
From: Site-selective photoemission from delocalized valence shells induced by molecular rotation
The spectrum was recorded at hν=100 eV corresponding to an electron kinetic energy E≈84 eV. Seven vibrational sub-states (v=0,⋯,6) are observed. The experimental (brown crosses) and theoretical (black solid line) partial photoionization spectra correspond to the electron emission from the hydrogen atom (see text). Owing to the rotational recoil effect related to the electron ejection from the hydrogen atom, the broad H peaks are shifted compared with the narrower Cl peaks whose maxima are shown by blue bars.
