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Search for W H associated production in 5.3 fb(-1) of p(p)over-bar collisions at the Fermilab Tevatron
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2011 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 698, no 1, 6-13 p.Article in journal (Refereed) Published
Abstract [en]

We present a search for associated production of Higgs and W bosons in p (p) over bar collisions at a center of mass energy of root s = 1.96 TeV in 5.3 fb(-1) of integrated luminosity recorded by the DO experiment. Multivariate analysis techniques are applied to events containing one lepton, an imbalance in transverse energy, and one or two b-tagged jets to discriminate a potential WH signal from Standard Model backgrounds. We observe good agreement between data and expected backgrounds, and set an upper limit of 4.5 (at 95% confidence level and for m(H) = 115 GeV) on the ratio of the WH cross section multiplied by the branching fraction of H -> b (b) over bar to its Standard Model prediction, which is consistent with an expected limit of 4.8.

Place, publisher, year, edition, pages
2011. Vol. 698, no 1, 6-13 p.
Keyword [en]
Tevatron, Standard Model, Higgs boson, Electroweak symmetry breaking
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-152775DOI: 10.1016/j.physletb.2011.02.036ISI: 000289131600002OAI: oai:DiVA.org:uu-152775DiVA: diva2:414097
Available from: 2011-05-02 Created: 2011-05-02 Last updated: 2017-12-11Bibliographically approved

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