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arXiv · hep-ex/9910020

Searches for Scalar Quarks in e^+e^- Interactions at \sqrt{s} = 189 GeV

L3 Collaboration
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Abstract

Searches for scalar top and scalar bottom quarks, as well as for mass-degenerate scalar quarks of the first two families are performed at 189 GeV centre-of-mass energy with the L3 detector at LEP. No signals are observed. Model-independent limits on the scalar top production cross sections are determined for the decay modes t1~ -> c chi_1^0 and t1~ -> b l nu~. For scalar quarks of the other flavours q~ -> q chi_1^0 decays are considered. Within the framework of the Minimal Supersymmetric Standard Model mass limits are set at 95% C.L. for these particles. Indirect limits on the gluino mass are also derived.

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L3 Collaboration. 1999-10-11. Searches for Scalar Quarks in e^+e^- Interactions at \sqrt{s} = 189 GeV. https://doi.org/10.1016/s0370-2693(99)01363-5

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