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arXiv · hep-ph/9511459

Top pair production with an extra gluon at the Tevatron

V. Barger·P. G. Mercadante·R. J. N. Phillips
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Abstract

We calculate top pair production and decay at the Tevatron $p\bar p$ collider, with the emission of an extra gluon, and study the corresponding $W+5$\,jet top signals including full spin correlations in the $W \to \ellν$ leptonic and $W\to jj$ hadronic decays. We study the feasibility of reconstructing $W+5$\,jet top events with a single $b$-tag, including realistic energy resolution. Our suggested basic procedure based on kinematic fitting achieves about 74\% reconstruction efficiency, with 74\% of the reconstructed events correctly classified (purity); this improves to 82\% efficiency with 77\% purity in double-$b$-tagged events. We suggest possible refinements, based on virtuality criteria, that give higher purity at the cost of lower reconstruction efficiency.

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V. Barger, P. G. Mercadante, R. J. N. Phillips. 1995-11-29. Top pair production with an extra gluon at the Tevatron. https://doi.org/10.1016/0370-2693(95)01594-9

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