Search for the Standard Model Higgs boson in the decay channel H¿ZZ(¿)¿4l with the ATLAS detector

G. Aad...[et al.], B. Abbott, J. Abdallah, Mogens Dam, Jørgen Beck Hansen, John Renner Hansen, Jørn Dines Hansen, Peter Henrik Hansen, Morten Dam Jørgensen, Esben Bryndt Klinkby, Stefania Xella, Troels Christian Petersen, Nele Maria Philomena Boelaert, Thomas Høvring Kittelmann

21 Citations (Scopus)

Abstract

A search for the Standard Model Higgs boson in the decay channel H→ZZ(*)→ℓ+-'+'-, where ℓ=e, μ, is presented. Proton-proton collision data at s=7TeV recorded with the ATLAS detector and corresponding to an average integrated luminosity of 2.1fb-1 are compared to the Standard Model expectations. Upper limits on the production cross section of a Standard Model Higgs boson with a mass between 110 and 600GeV are derived. The observed (expected) 95% confidence level upper limit on the production cross section for a Higgs boson with a mass of 194 GeV, the region with the best expected sensitivity for this search, is 0.99 (1.01) times the Standard Model prediction. The Standard Model Higgs boson is excluded at 95% confidence level in the mass ranges 191-197, 199-200 and 214-224 GeV.

Original languageEnglish
JournalPhysics Letters B
Volume705
Issue number5
Pages (from-to)435-451
ISSN0370-2693
DOIs
Publication statusPublished - 24 Nov 2011

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