Upgrade of the CMS detector

Planning for several accelerator and detector upgrades as well as future colliders are going on in parallel to LHC data taking. In 2023 an upgrade of the LHC to the HL-LHC is planned to reach a total integrated luminosity of 3000/fb. While this allows to explore higher energy and lower probability physics processes, it comes with an additional experimental challenge. On average up to 200 protons, compared to 20 in Run I of the LHC, may collide simultaneously in the detector, thus the detector needs to be able to distinguish particles from the main interaction and those from overlapping interactions, so called pileup. To deal with these new conditions in 2023 upgrades of the CMS tracker, and of the CMS endcap calorimeter are foreseen, which are of particular interest to our group as they will allow resolving jet substructure with higher precision. Our group currently works on developing and characterizing new sensors for the HL-LHC pixel tracking detector.