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arXiv · hep-ph/9308216

Event shape criteria for single-lepton top signals

V. Barger·J. Ohnemus·R. J. N. Phillips
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Abstract

Single-lepton plus jets signals from $t\bar t$ production at hadron colliders generally give more spherically symmetrical events than the principal backgrounds from $W$ production. We show that sphericity and aplanarity criteria, applied to lepton plus neutrino plus four jet final states at the Fermilab Tevatron $p\bar p$ collider, help to discriminate; they can be used either to validate an eventual top signal or simply to reduce background. An alternative circularity criterion in the transverse plane is less successful.

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V. Barger, J. Ohnemus, R. J. N. Phillips. 1993-08-03. Event shape criteria for single-lepton top signals. https://doi.org/10.1103/physrevd.48.r3953

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