Commissioning and Performance of the CMS Pixel Tracker with Cosmic Ray Muons

Abstract

The pixel detector of the Compact Muon Solenoid experiment consists of three barrel layers and two disks for each endcap. The detector was installed in summer 2008, commissioned with charge injections, and operated in the 3.8 T magnetic field during cosmic ray data taking. This paper reports on the first running experience and presents results on the pixel tracker performance, which are found to be in line with the design specifications of this detector. The transverse impact parameter resolution measured in a sample of high momentum muons is 18 microns.

References in corpus (4)

• Alignment of the CMS Silicon Tracker during Commissioning with Cosmic Rays
• Commissioning of the CMS Experiment and the Cosmic Run at Four Tesla
• Design and performance of the silicon sensors for the CMS barrel pixel detector
• Building CMS Pixel Barrel Detectur Modules

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• CMS Tracking Performance Results from early LHC Operation
• Alignment of the CMS Silicon Tracker during Commissioning with Cosmic Rays
• Performance of CMS Muon Reconstruction in Cosmic-Ray Events
• Commissioning of the CMS Experiment and the Cosmic Run at Four Tesla
• Alignment of the CMS tracker with LHC and cosmic ray data
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