Cover Picture: Contrib. Plasma Phys. 6/2019

Average double occupation of the lattice electrons during the impact of a proton on a 54‐site honeycomb for different initial kinetic indicated on the y‐axis. The x‐axis contains the current height of the proton (impacting from the left) above the cluster plane. Since the projectile velocity is almost constant, the height is a measure of time. Fig. 2f of the paper by N. Schlünzen et al.