# Limits on the production of the Standard Model Higgs Boson in pp collisions at sqrt(s) =7 TeV with the ATLAS detector

5 Laboratoire de Physique Corpusculaire
LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
7 APC - Neutrinos
LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies, APC (UMR_7164) - AstroParticule et Cosmologie
Abstract : A search for the Standard Model Higgs boson at the Large Hadron Collider (LHC) running at a centre-of-mass energy of 7 TeV is reported, based on a total integrated luminosity of up to 40 pb-1 collected by the ATLAS detector in 2010. Several Higgs boson decay channels: H \rightarrow {\gamma}{\gamma}, H \rightarrow ZZ (*) \rightarrow llll, H \rightarrow ZZ \rightarrow ll{\nu}{\nu}, H \rightarrow ZZ \rightarrow llqq, H \rightarrow W W (*) \rightarrow l{\nu}l{\nu} and H \rightarrow W W \rightarrow l{\nu}qq (l is e, {\mu}) are combined in a mass range from 110 GeV to 600 GeV. The highest sensitivity is achieved in the mass range between 160 GeV and 170 GeV, where the expected 95% CL exclusion sensitivity is at Higgs boson production cross sections 2.3 times the Standard Model prediction. Upper limits on the cross section for its production are determined. Models with a fourth generation of heavy leptons and quarks with Standard Model-like couplings to the Higgs boson are also investigated and are excluded for a Higgs boson mass in the range from 140 GeV to 185 GeV.
Document type :
Journal articles

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Submitted on : Wednesday, June 15, 2011 - 9:07:57 AM
Last modification on : Tuesday, January 25, 2022 - 12:48:11 PM

### Citation

G. Aad, S. Albrand, M.L. Andrieux, B. Clement, J. Collot, et al.. Limits on the production of the Standard Model Higgs Boson in pp collisions at sqrt(s) =7 TeV with the ATLAS detector. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2011, 71, pp.1728. ⟨10.1140/epjc/s10052-011-1728-9⟩. ⟨in2p3-00600488⟩

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