About the variables in muons.root
I am confused by the structure of the tree. Is it that each instance has an array of pt or that each instance has 1 value for mu_pt?
If it is an array, why would it be? Is it because pt is changing with time? But then, what does its histogram represent? is it representing what is the highest pt of the muon had?
If it is a single value, what is the point of drawing a histogram? (from the formula of inv_m, I will only get a single value)
Also, what is runno (the run number) in the muons.root?
Thanks, Elim =D
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