Fig. 2: 3D and 2D velocity-map and covariance-map images.

a 3D-sliced velocity distribution recorded for \({\mathrm{CF}}_3^ +\) fragments; b central slice of the 3D scattering distributions for the \({\mathrm{CF}}_3^ +\), I⁺ and I²⁺ products. Below these are shown the covariance-map images for \({\mathrm{CF}}_3^ +\) formed with an I⁺ partner ion and with an I²⁺ partner ion. The vertical dotted lines show which features of the scattering distributions correspond to the pathways revealed in each of the covariance signals. Note that the signals in the centres of the distributions correspond to ions formed with a neutral partner, which do not give rise to a covariance signal since the neutral partners cannot be detected in our experiment. All images are plotted on a normalised intensity scale.