1. Single Particle Energy Resolution Vishnu V. Zutshi

2. Event Selection Remove double particle events (veto counters) Remove electron events (Cerenkov) Remove muon events (1m x 1m muon counter) Biases and efficiencies not studied We do know muons are left over Need to device a ‘non-interaction’ cut Needed for MC also

3. Sampling Fractions Evaluated one for each absorber thickness region (for now) 7 regions (3 ECAL+2 HCAL+2 TCMT) Used 20 GeV pion sample to minimize: (E inc -  a i L i ) 2 Weights for analog (ADC counts) and semi- digital (nhit) prescription were determined

4. Weights (Data) ECAL1ECAL2ECAL3HCAL1HCAL2TCMT1TCMT2 Analog 0.008319930.009294890.01321980.03359080.05371720.03420010.0919249 Digital 0.01722820.02000570.03181390.05136560.08449730.05981260.163267

5. 20 GeV pions (data)

6. Weights (MC) ECAL1ECAL2ECAL3HCAL1HCAL2TCMT1TCMT2 Analog 0.008766490.0104020.01599190.02915250.04686010.03396640.101838 Digital 0.01655050.02219110.03599190.05495450.08656520.06267570.249217

7. 20 GeV pions (mc)

8. Pions @ 10,15,20 GeV (data)

9. Data & MC

10. Pions @ 10,15,20 GeV

11. Data & MC

12. Resolution 10 GeV15 GeV20 GeV ADCNhitADCNhitADCNhit Data 0.19 0.160.16 0.130.14 0.117 MC 0.19 0.1550.147 0.112