Cörlin, P.Fischer, A.Schönwald, M.Sperl, A.Mizuno, T.Thumm, Uwe P. E.Pfeifer, T.Moshammer, R.2016-04-062016-04-062015-09-05http://hdl.handle.net/2097/32406Citation: Cörlin, P., Fischer, A., Schönwald, M., Sperl, A., Mizuno, T., Thumm, U., . . . Moshammer, R. (2015). Probing O+ 2 potential curves with an XUV-IR pump-probe experiment. 635(11). doi:10.1088/1742-6596/635/11/112060Upon ionization of ground state O2 molecules in a short XUV pulse, we observe a time-dependent vibrational wave packet in the potential of the binding O+ 2 (a4?u) state. Our pump-probe delay dependent kinetic-energy-release (KER) spectra are in qualitative agreement with the results of coupled-channel simulations that are based on calculated Born-Oppenheimer potential-energy curves (PECs). Using a Morse potential adjusted to the experimental data most features of the experimental spectra are reproduced quantitatively. © Published under licence by IOP Publishing Ltd.Attribution 3.0 Unported (CC BY 3.0)Delay CircuitsGround StateIonization PotentialKinetic EnergyKineticsMoleculesArticle