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Search for the Supersymmetric Partner of the Top-Quark in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8 {\rm TeV}$

CDF Collaboration
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Abstract

We report on a search for the supersymmetric partner of the top quark (stop) produced in $t \bar{t}$ events using $110 {\rm pb}^{-1}$ of $p \bar{p}$ collisions at $\sqrt{s} = 1.8 {\rm TeV}$ recorded with the Collider Detector at Fermilab. In the case of a light stop squark, the decay of the top quark into stop plus the lightest supersymmetric particle (LSP) could have a significant branching ratio. The observed events are consistent with Standard Model $t \bar{t}$ production and decay. Hence, we set limits on the branching ratio of the top quark decaying into stop plus LSP, excluding branching ratios above 45% for a LSP mass up to 40 {\rm GeV/c}$^{2}$.

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CDF Collaboration. 2000-11-01. Search for the Supersymmetric Partner of the Top-Quark in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8 {\rm TeV}$. https://doi.org/10.1103/physrevd.63.091101

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