Drift Chambers at DESY and CERN Mike Green, Fabrizio Salvatore, Michele Faucci Giannelli.

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Presentation transcript:

Drift Chambers at DESY and CERN Mike Green, Fabrizio Salvatore, Michele Faucci Giannelli

23/01/07Royal Holloway Group2 Work done so far DESY: –Digitization for MC –Efficiency –Drift velocity –Resolution study New: –Update of digitization and track reconstruction –New resolution

23/01/07Royal Holloway Group3 Update in processors Paul and Hakan discovered a bug in the code, the ordering of the chamber was correct but when reconstructing there was a swap between DC1 and DC2. Now is correct.  2 now is well defined as: where x are the measurement and y the fitted points

23/01/07Royal Holloway Group4 New Resolution Now 1.61 mm it was 1.63, previous result confirmed

23/01/07Royal Holloway Group5 Next step of analysis CERN setup: software 90% ready, need a procedure to calculate the “drift velocity”. MC studies: –Single chamber resolution. –Calculate resolution at ECAL CERN. Release of all new processors in CVS repository (anyone know how to do that?). Study of  2 for real data analysis, add a 3 point fit for DESY in case of bad points. Beam spread issue, further study.