Search for Scalar Leptoquark Pairs Decaying to Electrons and Jets in pbarp Collisions

Abstract

We have searched for the pair production of first generation scalar leptoquarks in the eejj channel using the full data set (123 pb-1) collected with the D0 detector at the Fermilab Tevatron during 1992--1996. We observe no candidates with an expected background of approximately 0.4 events. Comparing the experimental 95% confidence level upper limit to theoretical calculations of the cross section with the assumption of a 100% branching fraction to eq, we set a lower limit on the mass of a first generation scalar leptoquark of 225 GeV/c^2. The results of this analysis rule out the interpretation of the excess of high Q^2 events at HERA as leptoquarks which decay exclusively to eq.

Ten pages, including five figures, submitted to PRL

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Cited by in corpus (31)

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• A Quasi-Model-Independent Search for New High p_T Physics at DZero
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• Probing leptoquark production at IceCube
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• Search for Leptoquarks in Electron-Photon Scattering at sqrt(s_ee) up to 209 GeV at LEP
• Search for New Physics Using Quaero: A General Interface to D0 Event Data
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• Signal and Backgrounds for the Single Production of Scalar and Vector Leptoquarks at the LHC
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• A neutrino window to scalar leptoquarks: from low energy to colliders
• Scalar and Vector Leptoquark Pair Production at Hadron Colliders: Signal and Backgrounds
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• Signal and Backgrounds for Leptoquarks at the LHC II: Vector Leptoquarks
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