1 MC Production and Reconstruction Summary and Plans Valeria Bartsch, Fabrizio Salvatore, A.-M. Magnan, and Nigel Watson.

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Presentation transcript:

1 MC Production and Reconstruction Summary and Plans Valeria Bartsch, Fabrizio Salvatore, A.-M. Magnan, and Nigel Watson

2 The Monte Carlo chain, from beam to reconstructed hits Beam profile BDSIM setup of H6 beam line Geant4 ParticleGun + beam spread Mokk a first order Internal geometry Calice geometry Input configuration parameters + list of corresponding data runs File Run1 File RunN.... Reconstructio n Noise, calibration constants,... Analysi s Reco File Run1 Reco File RunN.... Realistic simulation of the beam line material

3 First MC Production Configuration : default (=nominal) values Energy, angle, beam parameters, detector model, ECAL, HCAL, TCMT pos w.r.t. (0,0,0) Cerenkov pressure and gas particle PDG ID Statistics factor List of runs associated 1- Give a unique identifier to each configuration: in order to easely recombine reconstructed files (MC and DATA) for analysis. 2- Create and fill a nominalConfiguration folder in the Calice database, containing all the parameters per run that are not already there 3- TAG database before any production 4- Define a list of runs, get all the parameters from the database in a flat file, one line per run. 5- Execute bash script to create Mokka steering and macro files from the flat configuration file. 6- Grid submission 7- Scripts to automatize jobs output, retrieve output statistics (and write it somewhere??)

4 Iterations ● Going from nominal to real values: – Create a second folder realConfiguration. Unique identifier ?? and fill database with measured values. – In the script creating the configuration flat file from the list of runs, specify a flag to know which folder should be used per run: real or nominal ? – Re-use bash script to create corresponding Mokka steering and macro files. ● Information needed in Mokka output: one integer (run number) and one string (database tag) in the runHeader.

5 Reconstruction and Geometry problem Mokka SimCalorimeterHi t RawCalorimeterHit s CalorimeterHit s TBEcalDigitisatio n CalibrateAndApplyThreshol d Raw data SimpleHitSearc h Position from Calice database = no position for unconnected modules nois e Position from Mokka database = no position for noise only hits Temporary solution ??? Solution 1) Mokka needs to output a GEAR xml file & GEAR needs to be extended to describe the detailed geometry of the prototype Iterations (software ? Regeneration ?) necessary to obtain the same position as in the data. Solution 2) Extend the position table to all modules + use Calice database to generate the Mokka driver.

6 Conclusion ● Mokka production will start ASAP with nominal parameters, and should be completed in the timescale of the next reprocessing of the data. ● Will need manpower to fill the database with missing values for all runs. ● Lots of iterations to find the real values and feedback to MC: need to be organised !! ● Data need to be reconstructed before MC, e.g. to fill the noise in the database. ● Reconstruction code is being finalized : POSITION ISSUE STILL NOT SORTED. No good solution, which one is less worse ??? My feeling: Calice database position, and discarding hits in unconnected layers. HCAL reconstruction uses Calice database position.... TCMT? Tracking ?

7 Thank you for your attention