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    Exploiting hβ†’Wβˆ—Wβˆ—h \to W^*W^* Decays at the Upgraded Fermilab Tevatron

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    We study the observability of a Standard Model-like Higgs boson at an upgraded Fermilab Tevatron via the mode hβ†’Wβˆ—Wβˆ—h \to W^*W^*. We concentrate on the main channel ggβ†’hβ†’Wβˆ—Wβˆ—β†’lΞ½lΞ½gg \to h \to W^*W^* \to l \nu l \nu. We also find the mode qqΛ‰β€²β†’Whβ†’WWβˆ—Wβˆ—β†’lΒ±Ξ½lΒ±Ξ½jjq\bar q'\to W h \to W W^*W^* \to l^\pm \nu l^\pm \nu jj useful. We perform detector level simulations by making use of a Monte Carlo program SHW. Optimized searching strategy and kinematical cuts are developed. We find that with a c.m. energy of 2 TeV and an integrated luminosity of 30 fbβˆ’1^{-1} the signal should be observable at a 3Οƒ\sigma level or better for the mass range of 145 GeV < m_h < 180 GeV. For 95% confidence level exclusion, the mass reach is 135 GeV < m_h <190 GeV. We also present results of studying these channels with a model-independent parameterization. Further improvement is possible by including other channels. We conclude that the upgraded Fermilab Tevatron will have the potential to significantly advance our knowledge of Higgs boson physics.Comment: 23 pages; 15 figures; 5 table
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