We present a search for standard model Higgs boson production
in association with a W boson in proton-antiproton collisions (p
anti-p --> W+/- H -> l nu bb-bar) at a center of mass energy
of 1.96 TeV. The search employs data collected with the CDF II
detector that correspond to an integrated luminosity of approximately
1.9 fb-1. We select events consistent with a signature of a single
charged lepton (e+/-/mu+/-), missing transverse energy, and two jets.
Jets corresponding to bottom quarks are identified with a secondary
vertex tagging method, a jet probability tagging method, and a neural
network filter. We use kinematic information in an artificial neural
network to improve discrimination between signal and background compared
to previous analyses. The observed number of events and the neural
network output distributions are consistent with the standard model
background expectations, and we set 95% confidence level upper limits on
the production cross section times branching fraction ranging from 1.2
to 1.1 pb or 7.5 to 102 times the standard model expectation for Higgs
boson masses from 110 to 150 GeV/c2, respectively.
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Updated: Wednesday, 2009 August 19 14:42:33 CDT automatically from input from carol picciolo