Combined search for the Standard Model Higgs boson using up to 4.9 fb−1 of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC Aad, G. Aguilar Saavedra, Juan Antonio Atlas Collaboration 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 s=7TeV 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~126GeV with a local significance of 3.5 standard deviations (σ). The local significances of H→γγ, H→ZZ(z.ast;)→ℓ+ℓ-ℓ'+ℓ'- and H→WW(z.ast;)→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% or, equivalently, 2.2σ 2020-06-22T10:37:07Z 2020-06-22T10:37:07Z 2012-03-29 info:eu-repo/semantics/article Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., Abdesselam, A., ... & Abreu, H. (2012). Combined search for the Standard Model Higgs boson using up to 4.9 fb− 1 of pp collision data at s= 7TeV with the ATLAS detector at the LHC. Physics Letters B, 710(1), 49-66 [https://doi.org/10.1016/j.physletb.2012.02.044] http://hdl.handle.net/10481/62601 10.1016/j.physletb.2012.02.044 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess Atribución-NoComercial-SinDerivadas 3.0 España Elsevier