A proposed plan for fine tuning of EMC MC The plan is to :  SURVEY the existing situation over the 2001 2002 runs - Validation of plots using  and.

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Presentation transcript:

A proposed plan for fine tuning of EMC MC The plan is to :  SURVEY the existing situation over the runs - Validation of plots using  and ee  ee  samples  Insert certified existing tools we have in MC  COMPARE MC corrected with VALIDATED plots  Final check of functionality with golden samples Ks ,  MC meeting LNF S.Miscetti (M.Palutan,T.Spadaro) Minimum effort for max result: start with LARGE effects... IF succesfull continue with minor points

Example of problems in EMC scale (1) 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 DATA vs MC

Example of problems in EMC scale (2)

Example of validation plots For a given data stat. ( for istance 2 pb-1) and as a function of   ENERGY ( response and resolution ) - vs Pg (resolution tails and NON Linearity at low energy) - vs Z,  (Barrel) check att.lenghts + “holes” - vs Y,X (Ecap)  TIMING (response and resolution) as above  EFFICIENCY this also as a function of Ecutoff, Cone opening, timing cut  Splitting + shower fragments should be by-product of bkg simulation MC meeting LNF S.Miscetti (M.Palutan,T.Spadaro) Plan is to create a stable executable to produce “a certified” set of plots to compare data vs MC and check stability along running time.

MC adjustment Already produced enough stat for the two basic calibration samples (190x pi, 111x x60 bhabha) Create stable A_C modules in MCT library ?? To:  SIMULATE THE THRESHOLDS - compare data-MC effect on linearity, resolution to then correct CLUFIXENE for MC  Apply Recover Splitting  “HOLES” ?? MC meeting LNF S.Miscetti (M.Palutan,T.Spadaro)

People involved To create stable executable for VALIDATION  Misc + Palutan + Spadaro To create the A_C modules to correct MC:  Misc + Giovannella To run VALIDATION  All EMC group.. (first consultation started with A.Passeri) To compare results on golden samples  the usual guys... MC meeting LNF S.Miscetti (M.Palutan,T.Spadaro)