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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.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2865
2012 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 717, no 1-3, 70-88 p.Article 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, 70-88 p.
Keyword [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-s2.0-84867330005OAI: oai:DiVA.org:kth-107148DiVA: diva2:574767
Note

QC 20121206. Author count: 2865

Available from: 2012-12-06 Created: 2012-12-06 Last updated: 2017-12-07Bibliographically approved

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Strandberg, Jonas

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