Search for third-generation leptoquarks in ppbar collisions at sqrt(s)=1.96 TeV

Abstract

We report on a search for charge-1/3 third-generation leptoquarks (LQ) produced in ppbar collisions at sqrt(s)=1.96 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(ppbar->LQLQbar)*B^2 as a function of the leptoquark mass M_{LQ}. Assuming B=1, we exclude at the 95% confidence level third-generation scalar leptoquarks with M_{LQ} < 229 GeV.

Submitted to PRL, LaTeX, 7 pages, 5 figures

References in corpus (2)

• Measurement of the ttbar production cross section in pbarp collisions at sqrt(s) = 1.96 TeV using secondary vertex b tagging
• Measurement of the top quark mass in the lepton+jets channel using the Ideogram Method

Cited by in corpus (6)

• Theory and Phenomenology of Exotic Isosinglet Quarks and Squarks
• Leptoquarks: Neutrino masses and accelerator phenomenology
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• Search for scalar leptoquarks and T-odd quarks in the acoplanar jet topology using 2.5 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV
• Review of searches for Higgs bosons and beyond the standard model physics at the Tevatron
• Searches beyond the standard model at high-energy colliders