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Status Report on EMC Simulation and Data Validation for 2001-2002 Runs

This report outlines the progress of the EMC simulation project, detailing the initial survey and validation of data from the 2001-2002 runs. Key tasks include the evaluation of energy response using D3P3 datasets and addressing discrepancies in energy scale measurements. The report emphasizes the development of scripts for large sample analysis, comparisons with Monte Carlo simulations, and ongoing issues with the EMC scale. Highlights of the report include early tests, validation plots, and the status of the SELBKG module. Future steps include expanding data runs and further improvements in efficiency.

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Status Report on EMC Simulation and Data Validation for 2001-2002 Runs

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  1. Status report on EMC simulation ... • The plan was to: • SURVEY the existing situation over the 2001 2002 runs - Validation of plots using and eeee samples STATUS: started with  • Library TOMLIB,DIAG used with minor effort (after 1 day of debugging thanks to T.Spadaro) emcsim.exe • Scripts ready to run over a large sample. • First test-plots on energy response started/checked with 1.5 pb-1 of D3P3 dsts (runnum ~ 26519-26658) • next steps ... run over large data sets. Insert efficiencies. start comparing with MC, fix MC! MC meeting LNF 23-1-03 S.Miscetti

  2. Example of problems in EMC scale (1) DATA • Comparing the • Energy scale as • a function of • hit position in • fiber shows : • no problems just a small scale for Barrel • 4-5% discrepancy along Rt or Y in Ecap DATA vs MC

  3. Example of problems in EMC scale (2)

  4. Example of validation plots with EMCSIM Barrel only, E-Pg (MeV) vs .. Zext(cm) E(MeV) E(MeV) Pg(MeV) Pg (MeV)  MC meeting LNF 23-1-03 S.Miscetti

  5. EMCSIM: Barrel only. (E-Pg)/Pg Zext(cm) Pg(MeV)  MC meeting LNF 23-1-03 S.Miscetti

  6. Endcap region (80:180 cm in RT) RT(cm) Pg(MeV) MC meeting LNF 23-1-03 S.Miscetti

  7. Barrel-Endcap region (180:200 cm in RT) Pg(MeV) MC meeting LNF 23-1-03 S.Miscetti

  8. First look to resolution on EndCap • 20 slices in Pg (20 MeV) • Gauss fit • Extract Peak, • Sigma MC meeting LNF 23-1-03 S.Miscetti

  9. Endcaps .. Diff lin and energy resolution Pg(eV) Pg(MeV) MC meeting LNF 23-1-03 S.Miscetti

  10. Another look at holes .. Gamma Gamma sample (Degree) MC meeting LNF 23-1-03 S.Miscetti

  11. Status of SELBKG • A first skeleton of the AC module SELBKG exists: • INIT routine to reads the weights from files done • EV routine to filter gg sample: • - selection of golden clusters ok and tested. • - list of accidental clusters ok • - weighting routine in progress • - selection of CELE hits in progress • no selection for DC hits • A version 0 of a running AC module expected for next week. MC meeting LNF 23-1-03 S.Miscetti

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