Language: English
Abstract: Particle physics is an extremely far-reaching scientific field. Its domain ranges from the inner structure of atoms to the early formation of the Cosmos. While based on a small number of fundamental principles (quantum mechanics, relativity, and symmetries) a great variety of phenomena can be explained and understood with. The theoretical framework of particle physics, known as the Standard Model, provides the most precise agreement with experimental measurements in physics. A detailed mathematical treatment of particle physics requires quantum field theory, while understanding systematic errors and detector limitations requires years of intensive work on the experiments before a “single number” is obtained. On the detector side, silicon is an element that revolutionized electronics and sensors for particle physics. Silicon is dominating today’s technology in electronics, computer technology, sensors, solar cells, and telecommunication systems. With the development of CMOS technologies and VLSI electronics, the particle physics community embraced the new technologies and achieved a step forward in tracking precision and flavour identification. Pixel and strip silicon detector systems covering many decades of square meters are part of today's experiments at the Large Hadron Collider (LHC) at CERN. My talk will focus on the silicon sensors and electronics employed to upgrade the CMS experiment in view of the High Luminosity LHC.