Publicação
Search for triple Higgs boson production in the 6b final state using pp collisions at √s=13 TeV with the ATLAS detector
| Resumo: | 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\,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 nonresonant 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 and 1 TeV, respectively. In addition to scenarios where \( S \) is off-shell, the nonresonant interpretation includes a search for Standard Model \( HHH \) production, with limits on the trilinear and quartic Higgs self-coupling set. No evidence for \( HHH \) production is observed. An upper limit of 59 fb is set, at the 95% confidence level, on the cross section for Standard Model \( HHH \) production. |
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| Autores principais: | Castro, Nuno Filipe |
| Outros Autores: | Onofre, A.; ATLAS Collaboration |
| Assunto: | Ciências Naturais::Ciências Físicas |
| Ano: | 2025 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | 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\,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 nonresonant 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 and 1 TeV, respectively. In addition to scenarios where \( S \) is off-shell, the nonresonant interpretation includes a search for Standard Model \( HHH \) production, with limits on the trilinear and quartic Higgs self-coupling set. No evidence for \( HHH \) production is observed. An upper limit of 59 fb is set, at the 95% confidence level, on the cross section for Standard Model \( HHH \) production. |
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