Purity of proton sample at 3.0 GeV FXT

This shows the purity of the identified protons in my 3.0 GeV FXT triangular flow from total momentum of 0.2 to 4.0 GeV/c. I will try to correct the last few fits since they do not fit so well at the moment. After correcting these I expect the minimum purity to be about 90% at high momentum.