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unige:40282 
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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 |
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| Collaboration | With : Abdelalim Aly, Ahmed Aly / Alexandre, Gauthier / Backes, Moritz / Barone, Gaetano / Bell, Paul / Bell, William / Benhar Noccioli, Eleonora / Blondel, Alain / Bucci, Francesca / Clark, Allan Geoffrey / Dao, Valerio / Doglioni, Caterina / Ferrere, Didier / Gadomski, Szymon / Gonzalez Sevilla, Sergio / Goulette, Marc / Iacobucci, Giuseppe / La Rosa, Alessandro / Leger, Annie / Lister, Alison / Martin Dit Latour, Bertrand / Mermod, Philippe / Mora Herrera, Maria Clemencia Rosario / Pasztor, Arpad / Picazio, Attilio / Pohl, Martin / Rosbach, Kilian / Rosselet, Laurent / Wu, Xin | |
| Published in | Physics Letters. B. 2012, vol. 710, no. 1, p. 49-66 | |
| Abstract | 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=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→γγ, H→ZZ(⁎)→ℓ+ℓ−ℓ′+ℓ′− and H→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. | |
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Article (Published version) (1.2 MB) - Limited access to UNIGE Other version: http://www.sciencedirect.com/science/article/pii/S0370269312001852# |
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| Citation (ISO format) | ATLAS COLLABORATION. 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. In: Physics Letters. B, 2012, vol. 710, n° 1, p. 49-66. https://archive-ouverte.unige.ch/unige:40282 |
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