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Search for W-prime boson resonances decaying to a top quark and a bottom quark

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Article number211803
<mark>Journal publication date</mark>30/05/2008
<mark>Journal</mark>Physical Review Letters
Issue number21
Number of pages7
<mark>Original language</mark>English


We search for the production of a heavy W-prime gauge boson that decays to third generation quarks in 0.9 fb-1 of ppbar collisions at sqrt{s} = 1.96 TeV, collected with the D0 detector at the Fermilab Tevatron collider. We find no significant excess in the final-state invariant mass distribution and set upper limits on the production cross section times branching fraction. For a left-handed W-prime boson with SM couplings, we set a lower mass limit of 731 GeV. For right-handed W-prime bosons, we set lower mass limits of 739 GeV if the W-prime boson decays to both leptons and quarks and 768 GeV if the W-prime boson decays only to quarks. We also set limits on the coupling of the W-prime boson to fermions as a function of its mass.

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© 2008 The American Physical Society
submitted to Phys. Rev. Letters. 7 pages, 2 figures