The low-lying electronic states of BeCl: Potential energy curves, transition moments, transition probabilities, and radiative lifetimes

► High-level ab initio calculation including spin-orbit effects. ► State-of-art excited states potential energy curves description. ► Accurate electronic and vibrational spectra. ► Transition moments, transition probabilities, radiative lifetimes. ► Suggests that experimental C 2Σ+−X 2Σ+ transitions should be reanalyzed.