Speaker
Description
The High-Luminosity Large Hadron Collider (HL-LHC) aims to significantly enhance its sensitivity to potential new physics phenomena. One of the key targets of this upgrade is the search for Heavy Stable Charged Particles (HSCPs), which are widely predicted in various beyond-Standard-Model theories. HSCPs are characterized by a relatively low velocity (β < 0.9), long lifetime, and high ionization energy loss. Based on these properties, the CMS detector identifies HSCP candidates using both the time-of-flight (TOF) and ionization energy loss (dE/dx) methods. In this study, a four-layer improved Resistive Plate Chamber (iRPC) setup with a large inter-layer spacing of 139 cm, corresponding to the CMS Phase-2 upgrade design, was constructed at CERN laboratory 904. Using cosmic-ray events, particle tracks were reconstructed and their velocities measured to evaluate the feasibility of the RPC system assisting HSCP searches in the CMS Phase-2 upgrade through the TOF method.
