Search for a Standard Model Higgs boson in the H->ZZ->llnunu decay channel with the ATLAS detector

Details Search for a Standard Model Higgs boson in the H->ZZ->llnunu decay channel with the ATLAS detector Search for a Standard Model Higgs boson in the H->ZZ->llnunu decay channel with the ATLAS detector

2011-09-15

arxiv.org/abs/1109.3357v2

Phys.Rev.Lett. 107 (2011) 221802

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages plus author list (19 pages total), 4 figures, 1 table, final version published in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.107.221802

A search for a heavy Standard Model Higgs boson decaying via H->ZZ->llnunu, where l=e,mu, is presented. It is based on proton-proton collision data at sqrt(s)=7 TeV, collected by the ATLAS experiment at the LHC in the first half of 2011 and corresponding to an integrated luminosity of 1.04 fb^-1. The data are compared to the expected Standard Model backgrounds. The data and the combined background expectations are found to be in agreement and upper limits are placed on the Higgs boson production cross section over the entire mass window considered; in particular the production of a Standard Model Higgs boson is excluded in the region 340 < m_H < 450 GeV at the 95% confidence level.

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