This dissertation starts with an overview of the physics of heavy stable charged particles, which arise in various models beyond the standard model like supersymmetry and universal extra dimensions. Then it describes the current experimental status on searching for these particles. The main content of this dissertation is discussing the physics potential of the compact muon solenoid (CMS) detector at the large hadron collider (LHC) in detecting such high-mass particles, primarily using dE/dx information from the silicon strip tracker system of CMS, based on Monte-Carlo simulation data. Cosmic data from the Tracker Integration Facility is also used to better understand the performance of tracker dE/dx measurements.
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