Research Papers in Physics and Astronomy

 

Date of this Version

9-4-2000

Comments

Published by American Physical Society. Phys. Rev. Lett. 85, 2062 (2000). http://prl.aps.org. Copyright © 2000 American Physical Society. Permission to use.

Abstract

We use 106 pb-1 of data collected with the Collider Detector at Fermilab to search for narrow-width, vector particles decaying to a top and an antitop quark. Model independent upper limits on the cross section for narrow, vector resonances decaying to tt̅ are presented. At the 95% confidence level, we exclude the existence of a leptophobic Z′ boson in a model of top-color-assisted technicolor with mass MZ′ < 480 GeV/c2 for natural width Γ = 0.012MZ0 , and MZ′ < 780 GeV/c2 for Γ = MZ′ .

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