Contrasting Cherenkov light patterns produced by muons (left) and by showers initiated by electron and tau neutrinos (right) and by neutral current interactions. The patterns are routinely referred to as tracks and cascades (or showers). Cascades are produced by the radiation of particle showers of dimension of tens of meters, that is, an approximately point source of light with respect to the dimensions of the detector. At PeV energies, leptons travel hundreds of meters before decaying, producing a third topology, with two cascades, one when the interacts and the second when the decays [76]. This is the “double bang” signature.
