TEST-sample - 100 runs

TOF-parameters

TofSigmaElectron
TofTime
TofBeta
1/ TofBeta ( 1 / β)
TofProbElectron
 Δβ-1 / β-1|_E = [β^-1TOF - β^-1TPC] / β^-1TOF ,, where β^-1TPC = E_E / P = √(m²_E / p² +1)

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  1 / β_TOF is used fot PID purpose. Below is the distribution of   E /P vs 1 / β_TOF after applying TPC PID cuts (nSigmaPion and nSigmaElectron)  Real electron tracks should peak around β =1 . By looking at the distribution it seems the signal is pretty much isolated. And the block of events where E /P >1.5 kind of indicates that they could also be real electron tracks  because those tracks also have  1 / β_TOF ~1 . If they were mis-matched pilu up tracks they couldnot have 1 / β_TOF ~1 .  

Here's and distribution of  E / P vs Δβ^-1 / β^-1|E . Ideally the mean of this distribution should be  0 . Again theres block of events with E / P > <E/P> which also with in the mean of Δβ^-1 / β^-1|E .

 Here's  some more other distributions of TOF parameters.

TOF_1/Beta