Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 89: Higgs Boson: Decay in Fermions 2

T 89.7: Vortrag

Donnerstag, 24. März 2022, 17:45–18:00, T-H20

HH→bbττ Run 3 Trigger Studies — •Andrés Melo, Jason Veatch, and Stan Lai — II. Physikalisches Institut, Georg-August-Universität Göttingen

The HH→bbττ search is performed using data taken from the ATLAS experiment at the LHC, and allows us to probe the Higgs self-coupling (for non-resonant decays) and the existence of heavier particles from which both Higgs would have been produced (for resonant decays). Since the Higgs boson is identified by its decay products, tau triggering is an important and crucial part of the search.

In order to ensure optimal trigger efficiency for this final state signature in Run-3, the efficiency at the high level trigger (HLT) with respect to the Level-1 trigger (L1) is studied. A characterization of various kinematic variables and quantities of the events that do not pass the HLT triggers is performed. This study allows for an improvement of the trigger efficiency, minimizing event loss.