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A search for triple Higgs boson production in the 6b final state using pp collisions at sqrt{s}=13 TeV with the ATLAS detector

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arxiv 2411.02040 v2 pith:5JMCOHNF submitted 2024-11-04 hep-ex

A search for triple Higgs boson production in the $6b$ final state using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

classification hep-ex
keywords productionsearchhiggsatlasdetectorfinalnon-resonantresonant
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

A search for the production of three Higgs bosons ($HHH$) in the $b\bar{b}b\bar{b}b\bar{b}$ final state is presented. The search uses $126~\text{fb}^{-1}$ of proton-proton collision data at $\sqrt{s}=13$ TeV collected with the ATLAS detector at the Large Hadron Collider. The analysis targets both non-resonant and resonant production of $HHH$. The resonant interpretations primarily consider a cascade decay topology of $X\rightarrow SH\rightarrow HHH$ with masses of the new scalars $X$ and $S$ up to 1.5 TeV and 1 TeV, respectively. In addition to scenarios where $S$ is off-shell, the non-resonant interpretation includes a search for standard model (SM) $HHH$ production, with limits on the tri-linear and quartic Higgs self-coupling set. No evidence for $HHH$ production is observed. An upper limit of 59 fb is set, at 95% confidence level, on the cross-section for Standard-Model $HHH$ production.

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Forward citations

Cited by 13 Pith papers

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    hep-ex 2026-07 accept novelty 6.0

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    hep-ex 2026-07 accept novelty 6.0

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    hep-ex 2025-10 accept novelty 4.0

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