Event shape criteria for single-lepton top signals

Details Event shape criteria for single-lepton top signals Event shape criteria for single-lepton top signals

1993-08-03

arxiv.org/abs/hep-ph/9308216v1

Phys.Rev.D48:3953-3956,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

Standard Latex file, 8 pages. 3 figures, encoded using "uufiles", also submitted to hep-ph; uncompressed PS files or hardcopie

Scientific paper

10.1103/PhysRevD.48.R3953

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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