What+I+have+learned

Since there is a group of you all doing the same thing, please add any hints here to help your collaborators. Or, you could explain something that you happened to think about while doing this that you want to share with others.

In the "i have no clue" section, it says that two tracks most likely means electrons or muons. Can there be more that two tracks from these, or does that require the tau as intermediaries? (GN)

Another question: can there be muons present in a jet of hadrons, or does this again require tau as intermediaries? (GN)