Impact of the HL-LHC detector upgrades on the physics program of the ATLAS and CMS experiments

A wealth of physics results have already been obtained from the LHC, due to the excellent performance of the collider and its experiments. Even more results are expected to be achievable in the phase of the high-luminosity LHC (HL-LHC). It is foreseen to deliver a ten times higher LHC design luminosity resulting in about 4000 fb$^{-1}$ within ten years of operation. The upgrade of the LHC is driven by the prospect to observe and measure rare processes. High particle production rates and radiation doses result in a challenging environment for the collider experiments. The ATLAS and CMS experiments are foreseeing to upgrade or even replace several detector components to cope with this environment. In this report an overview of the detector upgrades and their impact on the physics program of the experiments will be given.