Combination of Tevatron Searches for the Standard Model Higgs Boson in theW+W−Decay Mode

We combine searches by the CDF and D0 Collaborations for a Higgs boson decaying to $W^{+}{W}^{-}$. The data correspond to an integrated total luminosity of 4.8 (CDF) and 5.4 (D0) ${\mathrm{fb}}^{-1}$ of $p\overline{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$ at the Fermilab Tevatron collider. No excess is observed above background expectation, and resulting limits on Higgs boson production exclude a standard model Higgs boson in the mass range 162–166 GeV at the 95% C.L.