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The CMS All-Silicon Tracker

Abstract: At the end of 1999, the Compact Muon Solenoid (CMS) collaboration made an ambitious decision to build a tracking system made up entirely of Silicon detectors. Silicon microstrip detectors with an area of ~207 m2 are now undergoing final integration and start of commissioning at CERN for the pilot run of the Large Hadron Collider (LHC) accelerator scheduled for the end of 2007. In addition, a powerful Silicon pixel system is under construction and scheduled for insertion around the beam pipe prior to the first physics run in mid-2008. After a brief description of the overall system and the physics goals that drove its design, I will review some of the more important issues that arose during the construction of the CMS tracker. In particular, a disciplined quality control program was employed that detected a multitude of subtle but serious flaws in components or their designs. I will describe many of these problems and also present how they were corrected as well as the strategies that were employed to recover from the subsequent delays that these problems induced. I will then present the integration of the micro-strip tracker at CERN, the performance of the tracker so far, and the status of the tracker with regard to the LHC schedule. Finally, if time is available, I will briefly touch upon some of the current thinking in regard to upgrading the tracker for the Super LHC.
Speaker: Joe Incandela - UC Santa Barbara
Speaker Bio: Joe Incandela is a professor at UC Santa Barbara. More information is coming soon!
Poster Link: Poster
Presentation: Presentation on 3/21/2007 (PDF)