1. Previous Work

3. Gauss fit with pion, proton, electron

4. Minimum Pion Bichsel Curve

5. Pion Gaussian Set Pion Sigma zero = 0.08688 Pion mu zero = 0.88153 I’m concerned about the electron curve. It does not look like it fits the data. I will add the Kaons to the Gaussian fit. Should I do anything with the errors for the STD? It seems that the error of the purity and efficiency calculation will be largely based on the errors of my fits

6. Pion, Electron, Kaon, Proton Fit Electron Sigma zero = 0.08671 Electron mu zero = 1.31032

7. Pion, Electron, Kaon, Proton Fit Kaon Sigma zero = 0.07388 Kaon mu zero = 1.5986

8. Pion, Electron, Kaon, Proton Fit Proton Sigma zero = 0.07235 Proton mu zero = 1.71444

9. Minimum Free Parameter Fit

10. Minimum Free Parameter Fit – Pos Amp

11. Efficiency, Purity vs. cut

12. Efficiency and Purity Error Is there an error in mu? Some error would be introduced because mu average is used. How should I handle this? I used range of sigma0 for electrons and recalculated efficiency and purity (1.5<p<1.52)