Search for Flavor-Changing Neutral Current Decays of the Top Quark in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8 TeV$

Publisher Website

23 March 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 80 (12) , 2525-2530
https://doi.org/10.1103/physrevlett.80.2525

Abstract

We search for the flavor-changing neutral current decays of the top quark

t \to q γ

and

t \to qZ

(here

q

represents the

c

and

u

quarks) in

\bar{p} p

collisions at

\sqrt{s} = 1.8 TeV

. We use a dataset

(\int L dt \sim 110 {pb}^{- 1})

collected during the 1992–1995 run of the Collider Detector at Fermilab. We set 95% confidence level limits on the branching fractions

B (t \to q γ) < 3.2 %

and

B (t \to qZ) < 33 %

, consistent with the standard model.

Keywords

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