Search for a Neutral Higgs Boson Decaying to aWBoson Pair inpp¯Collisions ats=1.96TeV

We present the results of a search for standard model Higgs boson production with decay to $W{W}^{*}$, identified through the leptonic final states $e^{+}{e}^{-}\overline{\nu }\nu ,e^{\pm }{\mu }^{\mp }\overline{\nu }\nu$ and ${\mu }^{+}{\mu }^{-}\overline{\nu }\nu$. This search uses $360{\mathrm{pb}}^{-1}$ of data collected from $p\overline{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$ by the upgraded Collider Detector at Fermilab (CDF II). We observe no signal excess and set 95% confidence level upper limits on the production cross section times branching ratio for the Higgs boson to $W{W}^{*}$ or any new scalar particle with similar decay products. These upper limits range from 5.5 to 3.2 pb for Higgs boson masses between 120 and $200\mathrm{GeV}/c^2$.