Below is the dijet mass distribution. No cuts on the energy of the Z was done, and the reconstructed Z from muons have mass between 80 GeV and 102 GeV.
The jets were obtaining by reclustering after muon removal from the list of particles and forcing into 2 jets. I just don't understand why such long tails for low mass values. Still investigating. Improving the dijet mass resolution (by improving jet reconstruction) could save some events from the dijet mass cut.
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