Extending the Higgs Boson Reach at the Upgraded Fermilab Tevatron

We study the observability of a standard-model-like Higgs boson at the upgraded Fermilab Tevatron via the modes $p\overline{p}\to \mathrm{gg}\to h\to W^{*}{W}^{*}\to \ell \nu \mathrm{jj}$ and $\ell \overline{\nu }\overline{\ell }\nu$. We find that, with c.m. energy of 2 TeV and an integrated luminosity of $30{\mathrm{fb}}^{-1\mathrm{}}$, the signal may be observable for the mass range of $135\lesssim m_h\lesssim 180\mathrm{GeV}$ at a $(3-5)\sigma$ statistical level. We conclude that the upgraded Fermilab Tevatron may have the potential to detect a standard-model-like Higgs boson in the mass range from the CERN $e^{+}{e}^{-}$ collider LEP II reach to 180 GeV.