Heidelberg 2022 – scientific programme

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T: Fachverband Teilchenphysik

T 91: Higgs Boson: Rare Decays

T 91.4: Talk

Thursday, March 24, 2022, 17:00–17:15, T-H22

Investigating Sensitive Observables as Input Variables for Neural Networks in the Search for Higgs Self-Interaction — •Lars Linden, Christoph Ames, and Otmar Biebel — Ludwig-Maximilians-Universit\"at, M\"unchen

A precise measurement of Higgs boson self-interaction is important to determine the properties and the shape of the Higgs potential. Deviations of the expected shape may possibly hint to new physics phenomena. However, the cross-section of the Higgs self-interaction process is very small. So, neural networks are employed to enhance the experimental sensitivity for this process. These networks require a training using specific input observables sensitive to the Higgs self-interaction final states. This talk presents such observables for Higgs boson pair production via the process $gg \to HH$ with a special focus on $HH\to b\bar{b}W^+W^-$ final states.