Search for a heavy Standard Model Higgs boson in the channel H→ZZ→ℓ + ℓ - qq̄ using the ATLAS detector
A search for a heavy Standard Model Higgs boson decaying via H→ZZ→ℓ + ℓ - qq̄, where ℓ=e, μ, is presented. The search is performed using a data set of pp collisions at √s=7 TeV, corresponding to an integrated luminosity of 1.04 fb -1 collected in 2011 by the ATLAS detector at the CERN LHC collider....
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03702693_v707_n1_p27_Aad |
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| Sumario: | A search for a heavy Standard Model Higgs boson decaying via H→ZZ→ℓ + ℓ - qq̄, where ℓ=e, μ, is presented. The search is performed using a data set of pp collisions at √s=7 TeV, corresponding to an integrated luminosity of 1.04 fb -1 collected in 2011 by the ATLAS detector at the CERN LHC collider. No significant excess of events above the estimated background is found. Upper limits at 95% confidence level on the production cross section (relative to that expected from the Standard Model) of a Higgs boson with a mass in the range between 200 and 600 GeV are derived. Within this mass range, there is at present insufficient sensitivity to exclude a Standard Model Higgs boson. For a Higgs boson with a mass of 360 GeV, where the sensitivity is maximal, the observed and expected cross section upper limits are factors of 1.7 and 2.7, respectively, larger than the Standard Model prediction. © 2011 CERN. |
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