Fig. 3: Electron affinity E_A of the chlorine atom as reported from several previous experiments^37,53,54(gray circles) compared to the value obtained in the present work (red star).

Error bars represent 1σ total uncertainties, while the pink band denotes the 1σ statistical contribution to the uncertainty in our work. The systematic uncertainty is almost entirely due to a blueshift depletion when exploiting our MIRACLS scheme in collinear geometry, but would be absent in an anticollinear measurement configuration. See text for details.