Fig. 8

Distribution of angular features with a large velocity spread in one of the beams. a Schematic representation of the Newton diagram describing the scattering of two beams with particles of equal mass and equal pre-collision speed. One of the beams has zero velocity spread, whereas the other beam has a large velocity spread. Three Newton diagrams are drawn that correspond to scattering with the mean (black diagram) and two outermost values for the velocity (red and green diagrams). A DCS with a series of delta functions as defined in panel (b) results in line segments in the angular intensity distribution. The orientation of these line segments with respect to the mean relative velocity vector strongly depends on the scattering angle. This figure has been originally published in the supplement of reference [2] and was slightly adapted