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Efficiency

Figure [*] shows the electron efficiency and pion rejection factor for short gas cherenkov and pion rejectors.

Figure: PID efficiency on the left arm
\includegraphics[bb=20 40 580 770, width=300pt]{left-eff_2218.ps}

Figure [*] shows the 2D cuts used in pion rejectors.

Figure: 2D cuts used for pion rejectors
\includegraphics[bb=20 140 580 700, width=300pt]{left-pr-electron-cut-col.ps}




Xiaochao Zheng 2001-08-29