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Drift Chambers at DESY and CERN

Learn about recent progress at DESY and CERN involving digitization, efficiency, drift velocity, and resolution studies of drift chambers. New updates include resolution improvements and bug fixes in track reconstruction. Discover the latest findings and ongoing research efforts.

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Drift Chambers at DESY and CERN

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

  2. Work done so far • DESY: • Digitization for MC • Efficiency • Drift velocity • Resolution study • New: • Update of digitization and track reconstruction • New resolution Royal Holloway Group

  3. 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 Royal Holloway Group

  4. New Resolution Royal Holloway Group Now 1.61 mm it was 1.63, previous result confirmed

  5. 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 FF @ 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. Royal Holloway Group

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