Search for non-resonant di-Higgs production in the $b\bar{b}b\bar{b}$ final state at 13 TeV with the ATLAS experiment
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Pre-published on:
October 29, 2022
Published on:
June 15, 2023
Abstract
Results are presented of the search for non-resonant di-Higgs production in the $b\bar{b}b\bar{b}$ final state using the Run-2 dataset of proton-proton collisions at $\sqrt{s}=13$ TeV accumulated with the ATLAS detector. The $b\bar{b}b\bar{b}$ final state is one of the most sensitive channels for measuring the Higgs self-coupling and the di-Higgs production cross-section, thanks to its high branching ratio. The analysis utilizes a novel neural network to estimate the large QCD multijet backgrounds, and employs analysis categorizations to improve the sensitivity to di-Higgs production. The analysis strategy and the latest result of the observed (expected) upper limits on the SM di-Higgs production cross-section and the constraint on the Higgs self-coupling in this analysis are presented.
DOI: https://doi.org/10.22323/1.414.0991
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.