The Design of the CMS Upgrade Tracker and the CMS High Granularity Forward Calorimeter Equipped with Silicon Sensors for the HL-LHC

The CMS detector has been designed and realized to cope with an integrated luminosity of about \(\mathscr {L}=300\)  fb \(^{-1}\) with some margin and an instantaneous luminosity of \(\mathscr {L}{\sim } 10^{34}\,\textrm{cm}^{-2}\textrm{s}^{-1}\) .