PoS - Proceedings of Science
Volume 405 - 7th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2020-2021 (DISCRETE2020-2021) - Parallel sessions Tuesday
Probing the nature of electroweak symmetry breaking with Higgs boson pair-production at ATLAS
M.D. Hank*  on behalf of the ATLAS Collaboration
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Pre-published on: March 24, 2022
Published on:
Abstract
The ground state of the Higgs potential is found at a non-zero value of the Higgs field. This spontaneously breaks the electroweak symmetry, generating masses for most Standard Model particles. The shape of the Higgs potential is determined by the Higgs boson self-coupling, which can be probed through the pair production of Higgs bosons. This proceeding reports results for the latest $HH$ searches by the ATLAS experiment in the $b\bar{b}\gamma\gamma$, $b\bar{b}\tau^+\tau^-$, and $b\bar{b}b\bar{b}$ decay channels. These are obtained from the full LHC Run 2 dataset with $\sqrt{s}=13$ TeV $pp$ collisions. Non-resonant $HH$ results are interpreted as constraints on the Higgs boson self-coupling as well as upper limits on the Standard Model signal strength. Limits are also set on heavy resonances decaying to Higgs boson pairs.
DOI: https://doi.org/10.22323/1.405.0046
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