Speaker
Description
After 2020, CERN is planning an upgrade program of the LHC collider (HL-LHC) which will bring the luminosity up to 5x10^{34} cm^{−2}s^{−1}, almost five times the one foreseen for 2017, meaning a mean of more than 140 inelastic collisions superimposed on the event of interest. In this high-occupancy environment, reconstructing the particle momentum with high precision is one of the biggest challenges. In order to face this new scenario (called Phase 2), the Compact Muon Solenoid (CMS) experiment will build a completely new silicon-tracker detector and will need to implement new approaches to track finding to exploit the capabilities of the new tracker in addition to the algorithms already in use. In this talk the expected performance of CMS tracking at HL-LHC will be presented.
