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Search for a Standard Model Higgs boson in the mass range 200-600 GeV in the H -> ZZ -> l(+)l(-)q(q)over-bar decay channel with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0001-5650-4556
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-1921-6173
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0003-3867-0336
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Number of Authors: 28652012 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 717, no 1-3, p. 70-88Article in journal (Refereed) Published
Abstract [en]

A search for a heavy Standard Model Higgs boson decaying via H -> ZZ -> l(+)l(-)q (q) over bar, where l = e or mu, is presented. The search uses a data set of pp collisions at root s = 7 TeV, corresponding to an integrated luminosity of 4.7 fb(-1) collected in 2011 by the ATLAS detector at the CERN LHC. No significant excess of events above the estimated background is found. Upper limits at 95% confidence level on the production cross section of a Higgs boson with a mass in the range between 200 and 600 GeV are derived. A Standard Model Higgs boson with a mass in the range 300 GeV <= m(H) 322 <= GeV or 353 GeV <= m(H) <= 410 GeV is excluded at 95% CL The corresponding expected exclusion range is 351 GeV <= m(H) <= 404 GeV at 95% CL.

Place, publisher, year, edition, pages
2012. Vol. 717, no 1-3, p. 70-88
Keywords [en]
Standard Model Higgs boson, ATLAS
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-107148DOI: 10.1016/j.physletb.2012.09.020ISI: 000310187700008Scopus ID: 2-s2.0-85042489759OAI: oai:DiVA.org:kth-107148DiVA, id: diva2:574767
Note

QC 20121206. Author count: 2865

Available from: 2012-12-06 Created: 2012-12-06 Last updated: 2018-05-17Bibliographically approved

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Jovicevic, JelenaKuwertz, EmmaLund-Jensen, BengtStrandberg, Jonas

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