Ana Ventura Barroso – Present and future: HL-LHC upgrade of the tracker of the CMS detector

After the discovery of the Higgs boson by the CMS and ATLAS at the LHC there are many measurements left to do at the LHC. While these experiments continue to analyse data collected up until 2022, we are also preparing for the High Luminosity LHC (HL-LHC) which will begin operation in 2029. This will increase the rate of proton-proton collisions, leading to increased radiation and higher data load. For this reason, the CMS detector must be upgraded, necessitating the design and construction of an entire new silicon tracker system.

This new upgrade of the LHC will allow us to conduct more precise measurements. The top quark, being the heaviest fundamental particle known so far, plays an important role in the Standard Model. Its mass, serves as a critical benchmark for testing the SM predictions and probing potential extensions to our understanding of particle physics.