Coloquio de Física - Fast tracking electronics system for trigger upgrade at the Large Hadron Collider experiment

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Ponente: Yasuyuki Okumura (University of Chicago Enrico Fermi Institute / Fermilab) In a particle physics experiment, the trigger is a fast online ("live") selection system that decides which events are interesting enough to be recorded for further offline analysis and which events are to be discarded. In the ATLAS experiment at the Large Hadron Collider (LHC), the trigger is currently implemented as a piece of software that examines the results of each collision that occurs, for instance, between protons. While the envisioned high-luminosity upgrade of the LHC is expected to enable us to better understand the electroweak symmetry breaking mechanism -responsible for giving mass to particles through the Higgs boson- and surrounding potential new physics, it is also foreseen that, because of the greatly increased number of collisions per second, the trigger will be a major challenge.