Speaker
Description
The HL-LHC upgrade planned to the LHC will reach peak luminosities of 5-7*10^{34} cm^{-2} s^{-1}. The total integrated luminosity will reach 3000 fb^{-1} by the end of 2037. This poses new challenges on the LHC detectors. The current CMS Tracker is already running beyond design specifications and will not be able to cope the HL-LHC radiation conditions. CMS will need a completely new Tracker in order to fully exploit the highly demanding operating conditions and the delivered luminosity. The new Outer Tracker system is designed to provide robust tracking as well as Level-1 trigger capabilities using closely spaced modules composed of silicon macro-pixel and/or strip sensors. Research & Development activities are ongoing to explore options and develop module components and designs for the HL-LHC environment. The design choices for the CMS Outer Tracker Upgrade are discussed, together with some highlights of research and development activities.
