Research Papers in Physics and Astronomy


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Published by American Physical Society. Phys. Rev. D 74, 011104(R) (2006). Copyright © 2006 American Physical Society. Permission to use.


We have searched for a heavy resonance decaying into a Z+ jet final state in pp̅ collisions at a center of mass energy of 1:96 TeV at the Fermilab Tevatron collider using the D0 detector. No indication for such a resonance was found in a data sample corresponding to an integrated luminosity of 370 pb-1. We set upper limits on the cross section times branching fraction for heavy resonance production at the 95% C.L. as a function of the resonance mass and width. The limits are interpreted within the framework of a specific model of excited quark production.

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