Dr. Stefano Mersi (CERN)
The LHC machine is planning an upgrade program which will smoothly bring the luminosity up to or above 5×10^34 cm−2s−1 sometimes after 2020, to possibly reach an integrated luminosity of 3000 fb−1 at the end of that decade. In this ultimate scenario, called Phase2, when LHC will reach the High Luminosity (HL-LHC) phase, CMS will need a completely new Tracker detector, in order to fully exploit the high-demanding operating conditions and the delivered luminosity. The new Tracker should have also trigger capabilities. To achieve such goals, R&D activities are ongoing to explore options and develop solutions that would allow including tracking information at Level-1. The design choices for the CMS pixel and outer tracker upgrades are discussed along with some highlights of the R&D activities.