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

Collaboration, D; al, BAE; (1997) Search for Scalar Leptoquark Pairs Decaying to Electrons and Jets in pbarp Collisions. Physical Review Letters , 79 (22) 4321 - 4326. 10.1103/PhysRevLett.79.4321. Green open access

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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.

Type: Article
Title: Search for Scalar Leptoquark Pairs Decaying to Electrons and Jets in pbarp Collisions
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.79.4321
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.79.4321
Additional information: © 1997 The American Physical Society
URI: https://discovery.ucl.ac.uk/id/eprint/1374179
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