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Phys. Rev. Lett. 100, 041801 (2008) [7 pages]

Search for Standard Model Higgs Bosons Produced in Association with W Bosons

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T. Aaltonen et al. CDF Collaboration
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Received 23 October 2007; published 29 January 2008

We report on the results of a search for standard model Higgs bosons produced in association with W bosons from pp̅ collisions at s=1.96  TeV. The search uses a data sample corresponding to approximately 1  fb-1 of integrated luminosity. Events consistent with the Wν and Hbb̅ signature are selected by triggering on a high-pT electron or muon candidate and tagging one or two of the jet candidates as having originated from b quarks. A neural network filter rejects a fraction of tagged charm and light-flavor jets, increasing the b-jet purity in the sample. We observe no excess νbb̅ production beyond the background expectation, and we set 95% confidence level upper limits on the production cross section times branching fraction σ(pp̅ →WH)Br(H→bb̅ ) ranging from 3.9 to 1.3 pb, for specific Higgs boson mass hypotheses in the range 110 to 150  GeV/c2, respectively.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.041801
DOI:
10.1103/PhysRevLett.100.041801
PACS:
14.80.Bn, 13.85.Rm