Event Details

The High Luminosity LHC is expected to start colliding protons after the long shutdown of 2022-2025. The current CMS tracker will not survive radiation aging and will need to be replaced. Furthermore, the expected increase in PU to ~140 interactions per bunch crossing demands an improved trigger system. The tracker upgrade provides a unique opportunity and challenge to build a tracking trigger for the first level trigger of CMS. We describe the planned CMS upgrade with an emphasis on the development of a trackingtrigger system. Due to the complicated nature of the detector and to the time required to build the hardware these studies need to start about 10 years in advance to the planned upgrade. We also discuss two physics analyses: the coobservation of the Bs->mumu and the search for production of non-Standard Model long-lived particles through displaced vertices. Bs->mumu would greatly benefit by the tracking trigger upgrade due to the low transverse momentum muons in the final state.