In the Large Hadron Collider, the way particles are detected (specifically in ATLAS) is analogous to detecting photons using a photodiode(analogous is an exaggeration, but will suffice for the question ). But a single particle passing through the silicon pixel detector can also hit its adjacent pixels. In fact, it almost always does that. Now why this happens is closely related to the fact that these particles are highly energetic. There may be the uncertainty principle into play because more pixels means less resolution in position. But I want to know if there is another physical view of this as well, like energy leakage to adjacent pixels? And how do the MC simulations model this?