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We present a search for standard model (SM) Higgs boson production using pp̄ collision data at √s=1.96TeV, collected with the CDF II detector and corresponding to an integrated luminosity of 4.8fb-1. We search for Higgs bosons produced in all processes with a significant production rate and decaying to two W bosons. We find no evidence for SM Higgs boson production and place upper limits at the 95% confidence level on the SM production cross section (σH) for values of the Higgs boson mass (mH) in the range from 110 to 200 GeV. These limits are the most stringent for mH>130GeV and are 1.29 above the predicted value of σH for mH=165GeV. © 2010 The American Physical Society.

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Physical Review Letters