Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/48796
Título: | Combined search for the Standard Model Higgs boson using up to 4.9 fb(-1) of pp collision data at root s=7 TeV with the ATLAS detector at the LHC |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
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). Combined search for the Standard Model Higgs boson using up to 4.9 fb(-1) of pp collision data at root s=7 TeV with the ATLAS detector at the LHC. Physics Letters B, 710(1), 49-66. doi: 10.1016/j.physletb.2012.02.044 |
Resumo(s): | A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb−1 to 4.9 fb−1 of pp collisions collected at View the MathML sources=7 TeV is presented. The Higgs boson mass ranges 112.9–115.5 GeV, 131–238 GeV and 251–466 GeV are excluded at the 95% confidence level (CL), while the range 124–519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around mH∼126 GeVmH∼126 GeV with a local significance of 3.5 standard deviations (σ ). The local significances of H→γγH→γγ, View the MathML sourceH→ZZ(⁎)→ℓ+ℓ−ℓ′+ℓ′− and View the MathML sourceH→WW(⁎)→ℓ+νℓ′−ν¯, the three most sensitive channels in this mass range, are 2.8σ, 2.1σ and 1.4σ , respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110–600 GeV is estimated to be ∼1.4%∼1.4% or, equivalently, 2.2σ. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/48796 |
DOI: | 10.1016/j.physletb.2012.02.044 |
ISSN: | 0370-2693 |
e-ISSN: | 1873-2445 |
Versão da editora: | http://www.sciencedirect.com/science/article/pii/S0370269312001852 |
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-S0370269312001852-main.pdf | 1,27 MB | Adobe PDF | Ver/Abrir |