The CMS Tracker for the High Luminosity LHC

The LHC machine is planning an upgrade program which will smoothly bring the instantaneous luminosity to about 5–7.5 ×1034 cm−2s−1, to reach an integrated luminosity of 3000−4000 fb−1 by the end of 2039. This High Luminosity LHC scenario, HL-LHC, will require an upgrade program of the LHC detectors known as Phase-2 upgrade. The current CMS Tracker, already running beyond design specifications, and CMS Pixel Detector will not be able to survive HL-LHC radiation conditions and CMS will need completely new devices, in order to fully exploit the HL-LHC data which will be recorded under highly demanding background conditions.