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Finite-Width Effects in Top Quark Production at Hadron Colliders

N. Kauer·D. Zeppenfeld
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Abstract

Production cross sections for t\bar{t} and t\bar{t}j events at hadron colliders are calculated, including finite width effects and off resonance contributions for the entire decay chain, t --> bW --> b\ellν, for both top quarks. Resulting background rates to Higgs search at the CERN LHC are updated for inclusive H --> WW studies and for H --> ττand H --> WW decays in weak boson fusion events. Finite width effects are large, increasing t\bar{t}(j) rates by 20% or more, after typical cuts which are employed for top-background rejection.

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N. Kauer, D. Zeppenfeld. 2001-10-08. Finite-Width Effects in Top Quark Production at Hadron Colliders. https://doi.org/10.1103/physrevd.65.014021

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