Bonn 2020 – scientific programme
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T: Fachverband Teilchenphysik
T 63: DAQ, trigger and electronics III
T 63.2: Talk
Wednesday, April 1, 2020, 16:45–17:00, L-3.015
Particle selection and combinatorics in LHCb's Upgrade trigger — •Niklas Nolte1,2, Sascha Stahl1, and Oliver Lupton1 — 1CERN — 2TU Dortmund
LHCb is undergoing a significant upgrade for Run 3 of the LHC, where one of the main changes is the transition to a full software trigger solution. Processing events at a 30-fold increased rate and a five-fold increase in instantaneous luminosity with respect to Run 2 is a challenging task. We expect O(1000) selections that have to be processed for each event in the second trigger stage, which will operate at 1 MHz event rate. Each of these selections filter particles based on their properties and reconstruct their entire decay chain with different mass hypotheses. To meet the tight performance requirements of these tasks, we introduce a new trigger event model and optimized algorithms to perform these selections.