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
2012 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 717, no 1-3, 70-88 p.Article in journal (Refereed) Published
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.
IdentifiersURN: urn:nbn:se:uu:diva-187813DOI: 10.1016/j.physletb.2012.09.020ISI: 000310187700008OAI: oai:DiVA.org:uu-187813DiVA: diva2:575707
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1016/j.physletb.2012.09.0202012-12-112012-12-11Bibliographically approved