Ion rotational distributions for near-threshold photoionization of H2O

Abstract
Ion rotational distributions for single‐photon VUV photoionization of the 1b1 orbital of the X̃ 1A1 ground state of the jet‐cooled water are reported. These spectra reveal significant type a transitions which are seen to arise from odd angular momentum components of the photoelectron matrix element. The resulting photoionization dynamics are quite nonatomic‐like.