Aachen 2019 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 66: DAQ und Trigger III

T 66.8: Vortrag

Mittwoch, 27. März 2019, 17:45–18:00, S02

Triplet Track Trigger for Future Hadron Collider Experiments — •Tamasi Kar, André Schöning, and Jike Wang — Physikalisches Institut, Universität Heidelberg, Germany

A very large number of pileup events and the reduction of the huge data rate whilst keeping high signal efficiencies are some of the major challenges that future high rate experiments such as the High Energy LHC or the Future Circular hadron Collider (FCC-hh) have to tackle. This requires smart triggering concepts that not only allow for a significant reduction of pileup but also provide high signal acceptance and purity.
In this talk, the concept of triplet track trigger using High Voltage Monolithic Active Pixel Sensors (HV-MAPS) is introduced for a generic detector geometry. It is demonstrated that the triplet pixel layer design i.e. three closely stacked pixel layers at sufficiently large radius, allows a very simple and fast track reconstruction, providing excellent track reconstruction efficiencies and very high purity at the same time. Tracking performance studies are exemplarily presented for the ATLAS detector using a full Geant4 simulation. It is shown that the triplet track trigger can be used to trigger efficiently multi-jet signals using track-jets. A significant pileup, and thus data rate reduction is achieved by reconstructing the z-vertex positions of the jet constituents already at the very first trigger level.