Commissioning and Performance of the CMS Silicon Strip Tracker with Cosmic Ray Muons

TL;DR

This paper reports on the commissioning and performance evaluation of the CMS Silicon Strip Tracker using cosmic ray muons, demonstrating high efficiency and consistency with simulations during a full detector test in 2008.

Contribution

It provides the first comprehensive performance assessment of the CMS Silicon Strip Tracker with cosmic rays in a full detector setup.

Findings

Hit reconstruction efficiency >99%

Track reconstruction efficiency >99%

Results consistent with Monte Carlo simulations

Abstract

During autumn 2008, the Silicon Strip Tracker was operated with the full CMS experiment in a comprehensive test, in the presence of the 3.8 T magnetic field produced by the CMS superconducting solenoid. Cosmic ray muons were detected in the muon chambers and used to trigger the readout of all CMS sub-detectors. About 15 million events with a muon in the tracker were collected. The efficiency of hit and track reconstruction were measured to be higher than 99% and consistent with expectations from Monte Carlo simulation. This article details the commissioning and performance of the Silicon Strip Tracker with cosmic ray muons.