Search for Top Squark Pair Production in the Dielectron Channel

Abstract

This report describes the first search for top squark pair production in the channel stop_1 stopbar_1 -> b bbar chargino_1 chargino_1 -> ee+jets+MEt using 74.9 +- 8.9 pb^-1 of data collected using the D0 detector. A 95% confidence level upper limit on sigma*B is presented. The limit is above the theoretical expectation for sigma*B for this process, but does show the sensitivity of the current D0 data set to a particular topology for new physics.

Five pages, including three figures, submitted to PRD Brief Reports

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• A Search forthe Scalar Top Quark in $p\bar{p}$ Collisions at $\sqrt{s}=$ 1.8 TeV
• Probing top quark decay into light stop in the supersymmetric standard model at the upgraded Tevatron
• Search for First-Generation Scalar and Vector Leptoquarks
• Search for the Supersymmetric Partner of the Top-Quark in $p\bar{p}$ Collisions at $\sqrt{s}=1.8\mathrm{TeV}$
• Searching for Bottom Squarks at Luminosity Upgrades of the Fermilab Tevatron
• Squark Mixing in Electron-Positron Reactions