Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/87871
Título: | Search for resonant and non-resonant Higgs boson pair production in the bb¯ τ<sup>+</sup>τ<sup>−</sup> decay channel using 13 TeV pp collision data from the ATLAS detector |
Autor(es): | Castro, Nuno Filipe Onofre, A. ATLAS Collaboration |
Palavras-chave: | Hadron-Hadron Scattering Higgs Physics Proton-Proton Scattering |
Data: | 2023 |
Editora: | Springer |
Revista: | Journal of High Energy Physics |
Citação: | Aad, G., Abbott, B., Abbott, D. C., Abud, A. A., Abeling, K., Abhayasinghe, D. K., . . . Collaboration, A. (2023). Search for resonant and non-resonant Higgs boson pair production in the bbτ<SUP>+</SUP>τ<SUP>-</SUP> decay channel using 13TeV pp collision data from the ATLAS detector. Journal of High Energy Physics(7). doi: 10.1007/jhep07(2023)040 |
Resumo(s): | A search for Higgs boson pair production in events with two b-jets and two τ-leptons is presented, using a proton–proton collision dataset with an integrated luminosity of 139 fb −1 collected at s = 13 TeV by the ATLAS experiment at the LHC. Higgs boson pairs produced non-resonantly or in the decay of a narrow scalar resonance in the mass range from 251 to 1600 GeV are targeted. Events in which at least one τ-lepton decays hadronically are considered, and multivariate discriminants are used to reject the backgrounds. No significant excess of events above the expected background is observed in the non-resonant search. The largest excess in the resonant search is observed at a resonance mass of 1 TeV, with a local (global) significance of 3.1σ (2.0σ). Observed (expected) 95% confidence-level upper limits are set on the non-resonant Higgs boson pair-production cross-section at 4.7 (3.9) times the Standard Model prediction, assuming Standard Model kinematics, and on the resonant Higgs boson pair-production cross-section at between 21 and 900 fb (12 and 840 fb), depending on the mass of the narrow scalar resonance. [Figure not available: see fulltext.] |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/87871 |
DOI: | 10.1007/jhep07(2023)040 |
ISSN: | 1126-6708 |
e-ISSN: | 1029-8479 |
Versão da editora: | https://link.springer.com/article/10.1007/JHEP07(2023)040 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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JHEP07(2023)040.pdf | 1,91 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons