Karlsruhe 2024 – scientific programme
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T: Fachverband Teilchenphysik
T 46: Di-Higgs 1 (bbττ)
T 46.6: Talk
Tuesday, March 5, 2024, 17:15–17:30, Geb. 30.41: HS 1
High Level Trigger Optimization Studies in the Atlas search for Higgs Boson Pair Production in the HH → bb τhad+ τhad− channel — •Athul Dev Sudhakar Ponnu, Stan Lai, and Andrés Melo — II. Physikalisches Institut, Georg-August-Universität Göttingen.
The Standard Model of particle physics predicts the existence of the trilinear Higgs self coupling vertex. This can be studied through the Higgs boson pair production process, which is yet to be observed. To increase the probability of observing this process, studies for the optimisation of the High Level Triggers for the search of the HH → bb τhad+ τhad− final states have been performed.
The specific goal is to improve signal acceptance and background rejection of the trigger chains relevant for the study of the HH→ bb τhad+ τhad− channel using a trigger emulation framework developed for this purpose. The trigger selection criteria for two different di-τ trigger and the b+τ trigger have been fine-tuned to increase signal selection efficiency while maintaining or, in some cases, decreasing background rates.
Keywords: Trigger Optimisation; HDBS; HLT; ATLAS; Trilinear Higgs Self-Coupling