Search for a Standard Model Higgs boson in the H -> ZZ -> llnunu decay channel using 4.7 fb-1 of sqrt(s) = 7 TeV data with the ATLAS detector

Abstract

A search for a heavy Standard Model Higgs boson decaying via H -> ZZ -> llnunu, where l represents electrons or muons, is presented. It is based on proton-proton collision data at sqrt(s) = 7 TeV, collected by the ATLAS experiment at the LHC during 2011 and corresponding to an integrated luminosity of 4.7 fb^-1. The data agree with the expected Standard Model backgrounds. Upper limits on the Higgs boson production cross section are derived for Higgs boson masses between 200 GeV and 600 GeV and the production of a Standard Model Higgs boson with a mass in the range 319 - 558 GeV is excluded at the 95% confidence level.

11 pages plus author list (24 pages total), 6 figures, 1 table, submitted to Physics Letters B

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• Interference effects for H --> WW/ZZ --> l anti-nu_l anti-l nu_l searches in gluon fusion at the LHC
• Heavy Neutrino Search via the Higgs boson at the LHC
• Higgs Interference Effects in $\Pg \Pg \to \PZ\PZ$ and their Uncertainty
• Searching for the minimal Seesaw models at the LHC and beyond
• The Higgs Boson in the Standard Model - From LEP to LHC: Expectations, Searches, and Discovery of a Candidate
• Techniques and tools for measuring energy efficiency of scientific software applications
• Standard Model Higgs Boson Searches through the 125 GeV Boson Discovery
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