Laboratory for Particle Physics (LTP)

LTP Colloquium

Development of Radiation Hard Silicon Tracking and Timing Detectors for HL-LHC

Thursday, December 12, 2019, 16:00
WHGA Auditorium

Anna Macchiolo, Zurich University

In order to harvest the maximum physics potential of the CERN Large Hadron Collider (LHC), an upgrade program is underway to significantly increase the LHC luminosity (High Luminosity LHC). This will result in unprecedented radiation levels, exceeding the LHC fluences by roughly an order of magnitude. Due to the radiation damage limitations of the silicon sensors presently used, the physics experiments will require new tracking detectors for HL-LHC operation. ATLAS, CMS and LHCb, have developed extremely radiation hard silicon sensors to be employed on the innermost layers. In addition timing detectors implementing innovative silicon sensors will be used to correctly disentangle spatially overlapping events, aiding the tracker devices in the correct reconstruction of each event. The prospects of creating a new family of silicon sensors merging excellent position and timing resolution for particle tracking in four dimensions will be discussed.