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Search for a Standard Model Higgs Boson in the H -> ZZ -> l(+)l(-)v(v)over-bar Decay Channel with the ATLAS Detector
DESY, D-2000 Hamburg, Germany .
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0003-3867-0336
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 30252011 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 107, no 22, p. 221802-Article in journal (Refereed) Published
Abstract [en]

A search for a heavy standard model Higgs boson decaying via H -> ZZ -> l(+)l(-)v (v) over bar, where l = e, mu, is presented. It is based on proton-proton collision data at root 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 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.

Place, publisher, year, edition, pages
2011. Vol. 107, no 22, p. 221802-
Keywords [en]
HADRON COLLIDERS, COLLISIONS
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-52603DOI: 10.1103/PhysRevLett.107.221802ISI: 000297292200001PubMedID: 22182021Scopus ID: 2-s2.0-81855161474OAI: oai:DiVA.org:kth-52603DiVA, id: diva2:467187
Funder
Swedish Research Council
Note
QC 20111219. Author count: 3025.Available from: 2011-12-19 Created: 2011-12-19 Last updated: 2024-03-15Bibliographically approved

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Grahn, Karl-JohanLund-Jensen, BengtStrandberg, Jonas

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