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- W2051616191 abstract "We propose ways in which eventual signals from heavy-top-quark decays into on-shell or nearly-on-shell W bosons may be discriminated more sharply from background at the Fermilab Tevatron pifmmodebarelsetextasciimacronfi{}p collider. For single-lepton tifmmodebarelsetextasciimacronfi{}t signals, the principal background from direct W production cannot be eliminated by acceptance cuts alone, but the signal/background ratio can be greatly increased by requiring a high jet multiplicity n. Top-quark signals can be detected and ${m}_{t}$ can be measured via enhancements in the single-lepton event rates at high n, or via a peak in the invariant mass of the three hardest jets at high n. A tifmmodebarelsetextasciimacronfi{}t signal can be extracted up to ${m}_{t}$=150 GeV (180 GeV) from selected data with nensuremath{ge}3 (nensuremath{ge}4) jets. For two-lepton tifmmodebarelsetextasciimacronfi{}t signals, the principal standard-model backgrounds from bifmmodebarelsetextasciimacronfi{}b,cifmmodebarelsetextasciimacronfi{}c and Drell-Yan dilepton production can all be removed by cuts. The remaining backgrounds from direct ${W}^{+}$${W}^{mathrm{ensuremath{-}}}$ and Drell-Yan ensuremath{tau}ifmmodebarelsetextasciimacronfi{}ensuremath{tau} production can be suppressed to a level well below the tifmmodebarelsetextasciimacronfi{}t signals, for the whole of the mass range up to ${m}_{t}$=200 GeV allowed for the standard model. Eventual tifmmodebarelsetextasciimacronfi{}t signals can be confirmed by characteristic dynamical distributions. An integrated luminosity of 10 ${mathrm{pb}}^{mathrm{ensuremath{-}}1}$ (100 ${mathrm{pb}}^{mathrm{ensuremath{-}}1}$) would be enough to detect top quarks up to ${m}_{t}$=120 GeV (200 GeV)." @default.
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- W2051616191 date "1989-06-01" @default.
- W2051616191 modified "2023-09-25" @default.
- W2051616191 title "Search for top-quark decays to realWbosons at the Fermilab Tevatron collider" @default.
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- W2051616191 doi "https://doi.org/10.1103/physrevd.39.3310" @default.
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