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.

arXiv commentSubmitted to PRL, LaTeX, 7 pages, 5 figures

References in corpus (18)

• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• High-Energy-Physics Event Generation with PYTHIA 6.1
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• Confidence Level Computation for Combining Searches with Small Statistics
• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• An update on vector boson pair production at hadron colliders
• The Upgraded D0 Detector
• CompHEP 4.4 - Automatic Computations from Lagrangians to Events
• Model independent constraints on leptoquarks from rare processes
• The fully differential single-top-quark cross section in next-to-leading order QCD
• Radiative corrections to Zb{\bar b} production
• Pair production of scalar leptoquarks at the Tevatron
• A Comprehensive Study of Leptoquark Bounds
• 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
• Search for pair production of scalar bottom quarks in ppbar collisions at sqrt(s)=1.96 TeV
• Search for Second and Third Generation Leptoquarks Including Production via Technicolor Interactions in $p\bar{p}$ collisions at $\sqrt{s}=1.8$ TeV
• Search for Charge 1/3 Third Generation Leptoquarks in pbarp Collisions at sqrt(s)=1.8 TeV

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