Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/48798
Título: | Search for the Standard Model Higgs boson in the decay channel H -> ZZ((*)) -> 4l with 4.8 fb(-1) of pp collision data at root s=7 TeV with ATLAS |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Palavras-chave: | LHC ATLAS Higgs Leptons |
Data: | 2012 |
Editora: | Elsevier 1 |
Revista: | Physics Letters B |
Citação: | Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., Abdesselam, A., . . . Collaboration, A. (2012). Search for the Standard Model Higgs boson in the decay channel H -> ZZ((*)) -> 4l with 4.8 fb(-1) of pp collision data at root s=7 TeV with ATLAS. Physics Letters B, 710(3), 383-402. doi: 10.1016/j.physletb.2012.03.005 |
Resumo(s): | This Letter presents a search for the Standard Model Higgs boson in the decay channel View the MathML sourceH→ZZ(⁎)→ℓ+ℓ−ℓ′+ℓ′−, where ℓ,ℓ′=eℓ,ℓ′=e or μ , using proton–proton collisions at View the MathML sources=7 TeV recorded with the ATLAS detector and corresponding to an integrated luminosity of 4.8 fb−1. The four-lepton invariant mass distribution is compared with Standard Model background expectations to derive upper limits on the cross section of a Standard Model Higgs boson with a mass between 110 GeV and 600 GeV. The mass ranges 134–156 GeV, 182–233 GeV, 256–265 GeV and 268–415 GeV are excluded at the 95% confidence level. The largest upward deviations from the background-only hypothesis are observed for Higgs boson masses of 125 GeV, 244 GeV and 500 GeV with local significances of 2.1, 2.2 and 2.1 standard deviations, respectively. Once the look-elsewhere effect is considered, none of these excesses are significant. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/48798 |
DOI: | 10.1016/j.physletb.2012.03.005 |
ISSN: | 0370-2693 |
e-ISSN: | 1873-2445 |
Versão da editora: | http://www.sciencedirect.com/science/article/pii/S0370269312002560 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S0370269312002560-main.pdf | 1,36 MB | Adobe PDF | Ver/Abrir |