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Search for W′ Boson Resonances Decaying to a Top Quark and a Bottom Quark
Baringer, Philip S. Bean, Alice Hensel, Carsten Moulik, Tania Wilson, Graham Wallace Abazov, V. M. Abbott, B. Abolins, M. Acharya, B. S. Adams, M.
Baringer, Philip S.
Bean, Alice
Hensel, Carsten
Moulik, Tania
Wilson, Graham Wallace
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
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Abstract
We search for the production of a heavy W′ gauge boson that decays to third generation quarks in 0.9 fb(−1) of pp-bar collisions at 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′ boson with SM couplings, we set a lower mass limit of 731 GeV. For right-handed W′ bosons, we set lower mass limits of 739 GeV if the W′ boson decays to both leptons and quarks and 768 GeV if the W′ boson decays only to quarks. We also set limits on the coupling of the W′ boson to fermions as a function of its mass.
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This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.100.211803.
Date
2008-05-30
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American Physical Society
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Baringer_5-30-2008.pdf
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V. M. Abazov et al. (The D0 Collaboration). (2008). "Search for W′ Boson Resonances Decaying to a Top Quark and a Bottom Quark." Physical Review Letters, 100(21):211803. http://dx.doi.org/10.1103/PhysRevLett.100.211803.