Today I got to lean about various decay structures of W and Z bosons and how they show up in the ATLAS detector at CERN. This image shows a ZZ decaying into a muon/antimuon pair and an electron/antielectron pair. The muons pass all the way through the detector and are colored orange here while the electrons are seen through the large energy deposits (yellow blobs) left in the electromagnetic calorimeter (green). In the second picture a filter is applied to get rid of lower energy particles that could have been from earlier collisions or glancing blows. This makes the paths the particles take in the detector much more obvious. If you want to download and play with the software yourself, check out these links:
http://atlas.physicsmasterclasses.org/…/ATLAS-…/en/index.htm
http://atlas.physicsmasterclasses.org/…/zpath_teilchenid2.h…
http://atlas.physicsmasterclasses.org/…/zpath_playwithatlas…
http://atlas.physicsmasterclasses.org/…/en/zpath_exercise2.…
http://atlas.physicsmasterclasses.org/…/ATLAS-…/en/index.htm
http://atlas.physicsmasterclasses.org/…/zpath_teilchenid2.h…
http://atlas.physicsmasterclasses.org/…/zpath_playwithatlas…
http://atlas.physicsmasterclasses.org/…/en/zpath_exercise2.…