Single Particle Energy Resolution Vishnu V. Zutshi.

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Presentation transcript:

Single Particle Energy Resolution Vishnu V. Zutshi

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

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

Weights (Data) ECAL1ECAL2ECAL3HCAL1HCAL2TCMT1TCMT2 Analog Digital

20 GeV pions (data)

Weights (MC) ECAL1ECAL2ECAL3HCAL1HCAL2TCMT1TCMT2 Analog Digital

20 GeV pions (mc)

10,15,20 GeV (data)

Data & MC

10,15,20 GeV

Data & MC

Resolution 10 GeV15 GeV20 GeV ADCNhitADCNhitADCNhit Data MC

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