Search for Scalar Top Quark Production in p-pbar Collisions at 1.8 TeV

Details Search for Scalar Top Quark Production in p-pbar Collisions at 1.8 TeV Search for Scalar Top Quark Production in p-pbar Collisions at 1.8 TeV

1999-12-08

arxiv.org/abs/hep-ex/9912018v1

Phys.Rev.Lett.84:5273-5278,2000

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.84.5273

We have searched for direct production of scalar top quarks at the Collider Detector at Fermilab in 88 pb-1 of p anti-p collisions at s**(1/2) = 1.8 TeV. We assume the scalar top quark decays into either a bottom quark and a chargino or a bottom quark, a lepton, and a scalar neutrino. The event signature for both decay scenarios is a lepton, missing transverse energy, and at least two b-quark jets. For a chargino mass of 90 GeV/c2 and scalar neutrino masses of at least 40 GeV/c2, we find no evidence for scalar top production and present upper limits on the production cross section in both decay scenarios.

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