Search for single vectorlike quarks in pp̄ collisions at √s=1.96TeV

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2011-02-22

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We present a search for hypothetical vectorlike quarks in pp̄ collisions at √s=1.96TeV. The data were collected by the D0 detector at the Fermilab Tevatron Collider and correspond to an integrated luminosity of 5.4fb-1. We select events with a final state composed of a W or Z boson and a jet consistent with a heavy object decay. We observe no significant excess in comparison to the background prediction and set limits on production cross sections for vectorlike quarks decaying to W+jet and Z+jet. These are the most stringent limits to date for electroweak single vectorlike quark production at hadron colliders. © 2011 American Physical Society.

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Physical Review Letters, v. 106, n. 8, 2011.

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