Search for Charge 1/3 Third Generation Leptoquarks in pbarp Collisions at sqrt(s)=1.8 TeV
Abstract
We report on a search for charge 1/3 third generation leptoquarks (LQ) produced in pbarp collisions at sqrt(s) = 1.8 TeV using the D0 detector at Fermilab. Third generation leptoquarks are assumed to be produced in pairs and to decay to a tau neutrino and a b quark with branching fraction B. We place upper limits on sigma(pbarp to LQbarLQ)xB2 as a function of the leptoquark mass MLQ. Assuming B =1, we exclude at the 95% confidence level third generation scalar leptoquarks with MLQ<94 GeV/c2, and third generation vector leptoquarks with MLQ<216 GeV/c2 (MLQ<148 GeV/c2) assuming Yang-Mills (anomalous) coupling.
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