A high-performance tracking system for the LHCb spectrometer

by Antonio Pellegrino (NIKHEF)

Friday 16 Sept 2011, 11:00 → 12:00 Europe/Zurich

Salle Andersson (CERN)

The LHCb experiment aims at the precise reconstruction of all the particles in the final states from the various decays of b-quark hadrons. b quarks are produced in abundance at the LHC, but the detection of their decays requires a very selective trigger and a very precise reconstruction of their invariant mass. To both purposes is of central importance an accurate tracking system capable of operating at the high intensities of the LHC. The LHCb detector is a forward spectrometer with a tracking system based on silicon strip detectors and straw-tube drift chambers up- and down-stream of a dipole magnet, to measure the momentum of all charged particles from b-hadron decays. We report on the global performance of this system, and of its individual sub-detectors, in terms of hit and tracking resolutions and efficiencies. We also present ideas for an upgrade based on a trigger-less concept, capable of sustaining even higher beam intensities."

Slides A.Pellegrino-LHCb-Tracking-16092011.pdf